new release

Generally --hardcopy should produce new files, but the completion is still
useful.

Changes

@@ -1,4 +1,127 @@
-feedgnuplot (1.29) unstable; urgency=low
+feedgnuplot (1.45)
+
+  * zsh completion: --hardcopy, --image  suggest filenames
+  * --image now produces a nicer legend: just the filename
+  * --curvestyle now overrides --curvestyleall
+    - This is a bug fix
+  * The version is now treated as a string not as a number
+    - So "1.40" is distinct from "1.4"
+
+ -- Dima Kogan <dima@secretsauce.net>  Sun, 29 Oct 2017 13:56:28 -0700
+
+feedgnuplot (1.44)
+
+  * --image draws its output beneath everything else
+
+ -- Dima Kogan <dima@secretsauce.net>  Tue, 20 Jun 2017 16:44:30 -0700
+
+feedgnuplot (1.43)
+
+  * Added --image
+
+ -- Dima Kogan <dima@secretsauce.net>  Mon, 19 Jun 2017 13:12:38 -0700
+
+feedgnuplot (1.42)
+
+  * Data can now come from STDIN or files on the cmdline.
+    This fixes a regression. Self-plotting data files work again
+
+ -- Dima Kogan <dima@secretsauce.net>  Fri, 31 Mar 2017 15:38:47 -0700
+
+feedgnuplot (1.41)
+
+  * Histograms: --xlen can coexist with --xmin/--xmax
+  * Histograms: work as expected with --xlen and --monotonic
+  * Histograms: better sanity checking of options
+
+ -- Dima Kogan <dima@secretsauce.net>  Fri, 24 Feb 2017 23:42:28 -0800
+
+feedgnuplot (1.40)
+
+  * If the options couldn't be parsed I don't dump the whole manpage
+  * --style and --rangesize can now take a comma-separated list of IDs
+  * 'any' is from List::MoreUtils, not List::Util
+  * the sleep-forever delay at end is now > 1000 days
+
+ -- Dima Kogan <dima@secretsauce.net>  Fri, 25 Nov 2016 14:45:06 -0800
+
+feedgnuplot (1.39)
+
+  * by default, histograms are plotted in expected ways
+
+ -- Dima Kogan <dima@secretsauce.net>  Sat, 15 Oct 2016 20:45:15 -0700
+
+feedgnuplot (1.38)
+
+  * hardcopy defaults:
+    - no enhanced text mode
+    - larger font size
+
+ -- Dima Kogan <dima@secretsauce.net>  Wed, 27 Jul 2016 22:15:11 -0700
+
+feedgnuplot (1.37)
+
+  * At the end of a streaming plot, include the last chunk of data
+  * Added --equation to the completions
+
+ -- Dima Kogan <dima@secretsauce.net>  Fri, 01 Jan 2016 08:09:43 -0800
+
+feedgnuplot (1.36)
+
+  * Added --equation to plot symbolic equations
+
+ -- Dima Kogan <dima@secretsauce.net>  Fri, 13 Nov 2015 11:08:26 -0800
+
+feedgnuplot (1.35)
+
+  * replaced a 'say' with 'print'. Should work better with ancient perls
+  * an "exit" command now has effect even with triggered-only replotting
+
+  * More sophisticated handling of termination conditions:
+    - Without --exit, we always end up with an interactive plot when the
+    input data is exhausted or when the user sends a ^C to the pipeline
+    - When streaming, the first ^C does not kill feedgnuplot
+  
+  * Removed threading
+
+ -- Dima Kogan <dima@secretsauce.net>  Sun, 01 Nov 2015 12:50:33 -0800
+
+feedgnuplot (1.34)
+
+  * Fix for "Use of implicit split to @_ is deprecated". Thanks to Corey
+    Putkunz
+
+  * Declaring feedgnuplot as a package to let MetaCPAN index this
+    distribution
+
+ -- Dima Kogan <dima@secretsauce.net>  Wed, 14 May 2014 00:45:24 -0700
+
+feedgnuplot (1.33)
+
+  * fixed incorrect plotting of --timefmt --rangesize plots
+
+ -- Dima Kogan <dima@secretsauce.net>  Thu, 06 Feb 2014 23:17:21 -0800
+
+feedgnuplot (1.32)
+
+  * Added --rangesize and --rangesizeall. Different curves can now plot
+    different-size tuples
+
+ -- Dima Kogan <dima@secretsauce.net>  Wed, 05 Feb 2014 13:57:58 -0800
+
+feedgnuplot (1.31)
+
+  * Test suite requires gawk to get strftime()
+
+ -- Dima Kogan <dima@secretsauce.net>  Sat, 25 Jan 2014 20:49:38 -0800
+
+feedgnuplot (1.30)
+
+  * Added --with, --set, --unset, --style, --styleall
+
+ -- Dima Kogan <dima@secretsauce.net>  Fri, 24 Jan 2014 15:38:07 -0800
+
+feedgnuplot (1.29)
 
   * added CPAN meta-data to require IPC::Run at build time
 

Makefile.PL

@@ -20,9 +20,9 @@ sub parseversion
 
   while(<PL>)
   {
-    if( /VERSION = ([0-9\.]+)/ )
+    if( /VERSION = '([0-9\.]+)'/ )
     {
-      if ( $1 != $version )
+      if ( $1 ne $version )
       {
         die "Version mismatch. Changes says version is '$version', but 'bin/feedgnuplot' says it is '$1'";
       }
@@ -64,6 +64,7 @@ WriteMakefile
    PL_FILES                   => {},
    EXE_FILES                  => [ 'bin/feedgnuplot' ],
    BUILD_REQUIRES             => { 'String::ShellQuote' => 0,
+                                   'List::MoreUtils'    => 0,
                                    'IPC::Run'           => 0},
    dist                       => { COMPRESS => 'gzip -9f', SUFFIX => 'gz', },
    clean                      => { FILES => 'feedgnuplot-*' },

completions/bash/feedgnuplot

@@ -7,12 +7,21 @@ complete -W               \
     --colormap            \
     --curvestyle          \
     --curvestyleall       \
+    --style               \
+    --styleall            \
+    --with                \
     --dataid              \
     --domain              \
     --dump                \
     --exit                \
     --extraValuesPerPoint \
+    --rangesizeall        \
+    --rangesize           \
     --extracmds           \
+    --set                 \
+    --unset               \
+    --equation            \
+    --image               \
     --geometry            \
     --hardcopy            \
     --help                \

completions/zsh/_feedgnuplot

@@ -26,17 +26,26 @@ _arguments -S
     '--zmin:min Z:'                                                               \
     '--zmax:max Z:'                                                               \
     '*--y2:plot to place on the Y2 axis:'                                         \
-    '--curvestyleall[Additional styles for ALL curves]:style'                     \
+    '(--with)--curvestyleall[Additional styles for ALL curves]:style'             \
+    '(--with)--styleall[Additional styles for ALL curves]:style'                  \
+    '(--curvestyleall)--with[Additional styles for ALL curves]:style'             \
     '*--extracmds[Additional gnuplot commands]:command'                           \
+    '*--set[Additional 'set' gnuplot commands]:set-option'                        \
+    '*--unset[Additional 'unset' gnuplot commands]:unset-option'                  \
+    '*--equation[Raw symbolic equation]:equation'                                 \
+    '--image[Image file to render beneath the data]:image:_files -g "(#i)*.(jpg|jpeg|png|gif)"' \
     '--square[Plot data with square aspect ratio]'                                \
     '--square_xy[For 3D plots, set square aspect ratio for ONLY the x,y axes]'    \
-    '--hardcopy[Plot to a file]:filename'                                         \
+    '--hardcopy[Plot to a file]:new image filename:_files -g "(#i)*.(jpg|jpeg|png|gif)"' \
     '--maxcurves[The maximum allowed number of curves]:number of curves'          \
     '(--3d)--monotonic[Resets plot if an X in the past is seen]'                  \
-    '--extraValuesPerPoint[How many extra values are given for each data point]:N'\
+    '(--rangesizeall)--extraValuesPerPoint[How many extra values are given for each data range]:N'\
+    '(--extraValuesPerPoint)--rangesizeall[How many values are given for each data range]:N'\
+    '*--rangesize[How many values comprise a data range in this curve]:curve id: :N:' \
     '--dump[Instead of printing to gnuplot, print to STDOUT]'                     \
     '--geometry[The X11 geometry string]:geometry string:'                        \
     '*--curvestyle[Additional styles for a curve]:curve id: :style:'              \
+    '*--style[Additional styles for a curve]:curve id: :style:'                   \
     '(--3d)*--histogram:plot to treat as a histogram:'                            \
     '--binwidth:Histogram bin width:'                                             \
     '--histstyle:Style of histogram:(frequency unique cumulative cnormal)'        \

feedgnuplot.spec

@@ -0,0 +1,58 @@
+# Sample spec file for rpm-based systems. Debian-based systems already have this
+# packaged, so we do not ship those here
+
+Name:           feedgnuplot
+Version:        1.38
+Release:        1%{?dist}
+Summary:        Pipe-oriented frontend to Gnuplot
+BuildArch:      noarch
+
+License:        Artistic or GPL-1+
+URL:            https://www.github.com/dkogan/feedgnuplot/
+Source0:        https://www.github.com/dkogan/feedgnuplot/archive/v%{version}.tar.gz#/%{name}-%{version}.tar.gz
+
+BuildRequires:  /usr/bin/pod2html
+BuildRequires:  perl-String-ShellQuote
+BuildRequires:  perl-ExtUtils-MakeMaker
+BuildRequires:  perl
+BuildRequires:  gawk
+BuildRequires:  gnuplot
+BuildRequires:  perl-IPC-Run
+
+Requires:       gnuplot
+
+%description
+Flexible, command-line-oriented frontend to Gnuplot. Creates plots from data
+coming in on STDIN or given in a filename passed on the commandline. Various
+data representations are supported, as is hardcopy output and streaming display
+of live data.
+
+%prep
+%setup -q
+
+%build
+perl Makefile.PL INSTALLDIRS=vendor
+make
+pod2html --title=feedgnuplot bin/feedgnuplot > feedgnuplot.html
+
+%install
+make install DESTDIR=%{buildroot} PREFIX=/usr
+
+mkdir -p %{buildroot}%{_defaultdocdir}/%{name}
+cp Changes LICENSE feedgnuplot.html %{buildroot}%{_defaultdocdir}/%{name}
+
+mkdir -p %{buildroot}%{_datadir}/zsh/site-functions
+cp completions/zsh/* %{buildroot}%{_datadir}/zsh/site-functions
+
+mkdir -p %{buildroot}%{_datadir}/bash-completion/completions
+cp completions/bash/* %{buildroot}%{_datadir}/bash-completion/completions
+
+rm -rf %{buildroot}/usr/lib64
+
+
+%files
+%{_bindir}/*
+%{_datadir}/zsh/*
+%{_datadir}/bash-completion/*
+%doc %{_defaultdocdir}/%{name}/*
+%doc %{_mandir}

t/plots.t

@@ -17,14 +17,20 @@ BEGIN {
     exit(0);
   }
 
-  open(my $pipe, 'gnuplot --version |');
-  if( !$pipe )
+  my $gawkversion = `gawk -V`;
+  if( !$gawkversion || $@ )
+  {
+    print("1..0 # Skip: gawk is required for strftime() in the test suite. Skipping tests.\n");
+    exit(0);
+  }
+
+  my $gnuplotVersion = `gnuplot --version`;
+  if( !$gnuplotVersion || $@)
   {
     print("1..0 # Skip: gnuplot not installed. Tests require ver. 4.6.4; feedgnuplot works with any.\n");
     exit(0);
   }
 
-  my $gnuplotVersion = <$pipe>;
   chomp $gnuplotVersion;
   if ($gnuplotVersion ne "gnuplot 4.6 patchlevel 4")
   {
@@ -33,7 +39,7 @@ BEGIN {
   }
 }
 
-use Test::More tests => 52;
+use Test::More tests => 58;
 use File::Temp 'tempfile';
 use IPC::Run 'run';
 use String::ShellQuote;
@@ -320,7 +326,7 @@ tryplot( testname => 'basic line plot with bounds, square aspect ratio',
 EOF
 
 tryplot( testname => 'lines on both axes with labels, legends, titles',
-         cmd      => q{seq 5 | awk '{print 2*$1, $1*$1}'},
+         cmd      => q{seq 5 | gawk '{print 2*$1, $1*$1}'},
          options  => [qw(--lines --points),
                       '--legend', '0', 'data 0',
                       '--title', "Test plot",
@@ -369,7 +375,7 @@ tryplot( testname => 'lines on both axes with labels, legends, titles',
 EOF
 
 tryplot( testname => 'lines on both axes with labels, legends, titles; different styles',
-         cmd      => q{seq 5 | awk '{print 2*$1, $1*$1}'},
+         cmd      => q{seq 5 | gawk '{print 2*$1, $1*$1}'},
          options  => ['--legend', '0', 'data 0',
                       '--title', "Test plot",
                       qw(--y2 1 --y2label y2 --xlabel x --ylabel y --y2max 30),
@@ -419,7 +425,7 @@ tryplot( testname => 'lines on both axes with labels, legends, titles; different
 EOF
 
 tryplot( testname => 'domain plot',
-         cmd      => q{seq 5 | awk '{print 2*$1, $1*$1}'},
+         cmd      => q{seq 5 | gawk '{print 2*$1, $1*$1}'},
          options  => [qw(--lines --points), '--domain'],
          refplot  => <<'EOF' );
 
@@ -465,7 +471,7 @@ tryplot( testname => 'domain plot',
 EOF
 
 tryplot( testname => 'dataid plot',
-         cmd      => q{seq 5 | awk '{print 2*$1, $1*$1}'},
+         cmd      => q{seq 5 | gawk '{print 2*$1, $1*$1}'},
          options  => [qw(--lines --points),
                       qw(--dataid --autolegend)],
          refplot  => <<'EOF' );
@@ -512,7 +518,7 @@ tryplot( testname => 'dataid plot',
 EOF
 
 tryplot( testname => '3d spiral with bounds, labels',
-         cmd      => q{seq 50 | awk '{print 2*cos($1/5), sin($1/5), $1}'},
+         cmd      => q{seq 50 | gawk '{print 2*cos($1/5), sin($1/5), $1}'},
          options  => [qw(--lines --points),
                       qw(--3d --domain --zmin -5 --zmax 45 --zlabel z),
                      '--extracmds', 'set view 60,30'],
@@ -560,7 +566,7 @@ tryplot( testname => '3d spiral with bounds, labels',
 EOF
 
 tryplot( testname => '3d spiral with bounds, labels, square xy aspect ratio',
-         cmd      => q{seq 50 | awk '{print 2*cos($1/5), sin($1/5), $1}'},
+         cmd      => q{seq 50 | gawk '{print 2*cos($1/5), sin($1/5), $1}'},
          options  => [qw(--lines --points),
                       qw(--3d --domain --zmin -5 --zmax 45 --zlabel z),
                      '--extracmds', 'set view 60,30', '--square_xy'],
@@ -608,7 +614,7 @@ tryplot( testname => '3d spiral with bounds, labels, square xy aspect ratio',
 EOF
 
 tryplot( testname => 'Monotonicity check',
-         cmd      => q{seq 10 | awk '{print (NR-1)%5,NR}'},
+         cmd      => q{seq 10 | gawk '{print (NR-1)%5,NR}'},
          options  => [qw(--lines --points --domain --monotonic)],
          refplot  => <<'EOF' );
 
@@ -655,7 +661,7 @@ EOF
 
 
 tryplot( testname => 'basic --timefmt plot',
-         cmd      => q{seq 5 | awk '{print strftime("%d %b %Y %T",1382249107+$1,1),$1}'},
+         cmd      => q{seq 5 | gawk '{print strftime("%d %b %Y %T",1382249107+$1,1),$1}'},
          options  => ['--domain', '--timefmt', '%d %b %Y %H:%M:%S'],
          refplot  => <<'EOF' );
 
@@ -701,7 +707,7 @@ tryplot( testname => 'basic --timefmt plot',
 EOF
 
 tryplot( testname => '--timefmt plot with bounds',
-         cmd      => q{seq 5 | awk '{print strftime("%d %b %Y %T",1382249107+$1,1),$1}'},
+         cmd      => q{seq 5 | gawk '{print strftime("%d %b %Y %T",1382249107+$1,1),$1}'},
          options  => ['--domain', '--timefmt', '%d %b %Y %H:%M:%S',
                       '--xmin', '20 Oct 2013 06:05:00',
                       '--xmax', '20 Oct 2013 06:05:20'],
@@ -749,7 +755,7 @@ tryplot( testname => '--timefmt plot with bounds',
 EOF
 
 tryplot( testname => '--timefmt plot with --monotonic',
-         cmd      => q{seq 10 | awk '{x=(NR-1)%5; print strftime("%d %b %Y %T",1382249107+x,1),$1}'},
+         cmd      => q{seq 10 | gawk '{x=(NR-1)%5; print strftime("%d %b %Y %T",1382249107+x,1),$1}'},
          options  => ['--domain', '--timefmt', '%d %b %Y %H:%M:%S',
                       '--monotonic'],
          refplot  => <<'EOF' );
@@ -795,10 +801,57 @@ tryplot( testname => '--timefmt plot with --monotonic',
 
 EOF
 
+tryplot( testname => '--timefmt with custom rangesize',
+         cmd      => q{seq 5 | gawk '{print strftime("%d %b %Y %T",1382249107+$1,1),$1,$1/10}'},
+         options  => ['--domain', '--timefmt', '%d %b %Y %H:%M:%S',
+                      qw(--with errorbars --rangesizeall 2)],
+         refplot  => <<'EOF' );
+
+
+  5.5 ++---------+-----------+----------+----------+----------+-----------+----------+---------**
+      +          +           +          +          +          +           +          +          *
+      |                                                                                         *
+    5 ++                                                                                       +A
+      |                                                                                         *
+      |                                                                                         *
+      |                                                                                         *
+  4.5 ++                                                                                       **
+      |                                                                  ***                    |
+      |                                                                   *                     |
+    4 ++                                                                  A                    ++
+      |                                                                   *                     |
+      |                                                                   *                     |
+      |                                                                  ***                    |
+  3.5 ++                                                                                       ++
+      |                                           ***                                           |
+      |                                            *                                            |
+    3 ++                                           A                                           ++
+      |                                            *                                            |
+      |                                            *                                            |
+      |                                           ***                                           |
+  2.5 ++                                                                                       ++
+      |                                                                                         |
+      |                     ***                                                                 |
+    2 ++                     A                                                                 ++
+      |                      *                                                                  |
+      |                     ***                                                                 |
+      |                                                                                         |
+  1.5 ++                                                                                       ++
+      |                                                                                         |
+      |                                                                                         |
+    1 A*                                                                                       ++
+      **                                                                                        |
+      |                                                                                         |
+      +          +           +          +          +          +           +          +          +
+  0.5 ++---------+-----------+----------+----------+----------+-----------+----------+---------++
+    05:08      05:08       05:09      05:09      05:10      05:10       05:11      05:11      05:12
+
+EOF
+
 tryplot( testname => 'Error bars (using extraValuesPerPoint)',
-         cmd      => q{seq 5 | awk '{print $1,$1,$1/10}'},
+         cmd      => q{seq 5 | gawk '{print $1,$1,$1/10}'},
          options  => [qw(--domain),
-                      qw(--extraValuesPerPoint 1 --curvestyle 0), 'with errorbars'],
+                      qw(--extraValuesPerPoint 1 --with errorbars)],
          refplot  => <<'EOF' );
 
 
@@ -843,6 +896,103 @@ tryplot( testname => 'Error bars (using extraValuesPerPoint)',
 EOF
 
 
+tryplot( testname => 'Error bars (using rangesizeall)',
+         cmd      => q{seq 5 | gawk '{print $1,$1,$1/10}'},
+         options  => [qw(--domain),
+                      qw(--rangesizeall 2 --with errorbars)],
+         refplot  => <<'EOF' );
+
+
+  5.5 ++---------+-----------+----------+----------+----------+-----------+----------+---------**
+      +          +           +          +          +          +           +          +          *
+      |                                                                                         *
+    5 ++                                                                                       +A
+      |                                                                                         *
+      |                                                                                         *
+      |                                                                                         *
+  4.5 ++                                                                                       **
+      |                                                                  ***                    |
+      |                                                                   *                     |
+    4 ++                                                                  A                    ++
+      |                                                                   *                     |
+      |                                                                   *                     |
+      |                                                                  ***                    |
+  3.5 ++                                                                                       ++
+      |                                           ***                                           |
+      |                                            *                                            |
+    3 ++                                           A                                           ++
+      |                                            *                                            |
+      |                                            *                                            |
+      |                                           ***                                           |
+  2.5 ++                                                                                       ++
+      |                                                                                         |
+      |                     ***                                                                 |
+    2 ++                     A                                                                 ++
+      |                      *                                                                  |
+      |                     ***                                                                 |
+      |                                                                                         |
+  1.5 ++                                                                                       ++
+      |                                                                                         |
+      |                                                                                         |
+    1 A*                                                                                       ++
+      **                                                                                        |
+      |                                                                                         |
+      +          +           +          +          +          +           +          +          +
+  0.5 ++---------+-----------+----------+----------+----------+-----------+----------+---------++
+      1         1.5          2         2.5         3         3.5          4         4.5         5
+
+EOF
+
+
+tryplot( testname => 'Error bars (using rangesize, rangesizeall)',
+         cmd      => q{seq 5 | gawk '{print $1,"vert",$1,$1/10,"horiz",5-$1,$1-$1/5,$1+$1/20}'},
+         options  => [qw(--domain --dataid),
+                      qw(--rangesize vert 2 --rangesizeall 3 --with xerrorbars --style vert), 'with errorbars',
+                      qw(--xmin 1 --xmax 5 --ymin 0.5 --ymax 5.5)],
+         refplot  => <<'EOF' );
+
+
+    +-----------+----------+-----------+----------+-----------+----------+-----------+---------**
+    +           +          +           +          +           +          +           +          *
+    |                                                                                           *
+  5 ++                                                                                         +A
+    |                                                                                           *
+    |                                                                                           *
+    |                                                                                           *
+    |                                                                                          **
+    |                                                                   ***                     |
+    ##                                                                   *                      |
+  4 B#                                                                   A                     ++
+    ##                                                                   *                      |
+    |                                                                    *                      |
+    |                                                                   ***                     |
+    |                                                                                           |
+    |                                            ***                                            |
+    |             #          #                    *                                             |
+  3 ++            #########B##                    A                                            ++
+    |             #          #                    *                                             |
+    |                                             *                                             |
+    |                                            ***                                            |
+    |                                                                                           |
+    |                                                                                           |
+    |                     ***       #                #                                          |
+  2 ++                     A        ##############B###                                         ++
+    |                      *        #                #                                          |
+    |                     ***                                                                   |
+    |                                                                                           |
+    |                                                                                           |
+    |                                                                                           |
+    |                                                  #                      #                 |
+  1 A*                                                 ##################B#####                ++
+    **                                                 #                      #                 |
+    |                                                                                           |
+    +           +          +           +          +           +          +           +          +
+    +-----------+----------+-----------+----------+-----------+----------+-----------+----------+
+    1          1.5         2          2.5         3          3.5         4          4.5         5
+
+EOF
+
+
 SKIP:
 {
 
@@ -860,7 +1010,7 @@ skip "Skipping unreliable tests. Set RUN_ALL_TESTS environment variable to run t
 
 
 tryplot( testname => 'Histogram plot',
-         cmd      => q{seq 50 | awk '{print $1*$1}'},
+         cmd      => q{seq 50 | gawk '{print $1*$1}'},
          options  => [qw(--lines --points),
                       qw(--histo 0 --binwidth 50 --ymin 0 --curvestyleall), 'with boxes'],
          refplot  => <<'EOF' );
@@ -907,7 +1057,7 @@ tryplot( testname => 'Histogram plot',
 EOF
 
 tryplot( testname => 'Cumulative histogram',
-         cmd      => q{seq 50 | awk '{print $1*$1}'},
+         cmd      => q{seq 50 | gawk '{print $1*$1}'},
          options  => [qw(--lines --points),
                       qw(--histo 0 --histstyle cum --binwidth 50 --ymin 0 --curvestyleall), 'with boxes'],
          refplot  => <<'EOF' );
@@ -954,7 +1104,7 @@ tryplot( testname => 'Cumulative histogram',
 EOF
 
 tryplot( testname => 'Circles',
-         cmd      => q{seq 5 | awk '{print $1,$1,$1/10}'},
+         cmd      => q{seq 5 | gawk '{print $1,$1,$1/10}'},
          options  => [qw(--circles --domain)],
          refplot  => <<'EOF' );
 
@@ -1008,7 +1158,7 @@ note( "Starting to run streaming tests. These will take several seconds each" );
 # points, and then "exit", so I should have two frames worth of data plotted. I
 # pre-send a 0 so that the gnuplot autoscaling is always well-defined
 tryplot( testname => 'basic streaming test',
-         cmd      => q{seq 500 | awk 'BEGIN{ print 0; } {print (NR==3)? "exit" : $0; fflush(); system("sleep 1.2");}'},
+         cmd      => q{seq 500 | gawk 'BEGIN{ print 0; } {print (NR==3)? "exit" : $0; fflush(); system("sleep 1.2");}'},
          options  => [qw(--lines --points --stream)],
          refplot  => <<'EOF' );
 
@@ -1094,7 +1244,7 @@ tryplot( testname => 'basic streaming test',
 EOF
 
 tryplot( testname => 'basic streaming test, twice as fast',
-         cmd      => q{seq 500 | awk 'BEGIN{ print 0; } {print (NR==3)? "exit" : $0; fflush(); system("sleep 0.6");}'},
+         cmd      => q{seq 500 | gawk 'BEGIN{ print 0; } {print (NR==3)? "exit" : $0; fflush(); system("sleep 0.6");}'},
          options  => [qw(--lines --points --stream 0.4)],
          refplot  => <<'EOF' );
 
@@ -1181,7 +1331,7 @@ EOF
 
 
 tryplot( testname => 'streaming with --xlen',
-         cmd      => q{seq 500 | awk 'BEGIN{ print 0; } {print (NR==3)? "exit" : $0; fflush(); system("sleep 0.6");}'},
+         cmd      => q{seq 500 | gawk 'BEGIN{ print 0; } {print (NR==3)? "exit" : $0; fflush(); system("sleep 0.6");}'},
          options  => [qw(--lines --points --stream 0.4 --xlen 1.1)],
          refplot  => <<'EOF' );
 
@@ -1267,7 +1417,7 @@ tryplot( testname => 'streaming with --xlen',
 EOF
 
 tryplot( testname => 'streaming with --monotonic',
-         cmd      => q{seq 500 | awk '{if(NR==11) {print "exit";} else {x=(NR-1)%5; if(x==0) {print -1,-1;} print x,NR;}; fflush(); system("sleep 0.6");}'},
+         cmd      => q{seq 500 | gawk '{if(NR==11) {print "exit";} else {x=(NR-1)%5; if(x==0) {print -1,-1;} print x,NR;}; fflush(); system("sleep 0.6");}'},
          options  => [qw(--lines --points --stream 0.4 --domain --monotonic)],
          refplot  => <<'EOF' );
 
@@ -1673,7 +1823,7 @@ tryplot( testname => 'streaming with --monotonic',
 EOF
 
 tryplot( testname => '--timefmt streaming plot with --xlen',
-         cmd      => q{seq 5 | awk 'BEGIN{ print strftime("%d %b %Y %T",1382249107-1,1),-4;} {if(NR==3) {print "exit";} else{ print strftime("%d %b %Y %T",1382249107+$1,1),$1;} fflush(); system("sleep 0.6")}'},
+         cmd      => q{seq 5 | gawk 'BEGIN{ print strftime("%d %b %Y %T",1382249107-1,1),-4;} {if(NR==3) {print "exit";} else{ print strftime("%d %b %Y %T",1382249107+$1,1),$1;} fflush(); system("sleep 0.6")}'},
          options  => ['--points', '--lines',
                       '--domain', '--timefmt', '%d %b %Y %H:%M:%S',
                       qw(--stream 0.4 --xlen 3)],
@@ -1761,7 +1911,7 @@ tryplot( testname => '--timefmt streaming plot with --xlen',
 EOF
 
 tryplot( testname => '--timefmt streaming plot with --monotonic',
-         cmd      => q{seq 10 | awk '{x=(NR-1)%5; if(x==0) {print strftime("%d %b %Y %T",1382249107-1,-4),-4;} print strftime("%d %b %Y %T",1382249107+x,1),NR; fflush(); system("sleep 0.6")}'},
+         cmd      => q{seq 10 | gawk '{x=(NR-1)%5; if(x==0) {print strftime("%d %b %Y %T",1382249107-1,-4),-4;} print strftime("%d %b %Y %T",1382249107+x,1),NR; fflush(); system("sleep 0.6")}'},
          options  => ['--points', '--lines',
                       '--domain', '--timefmt', '%d %b %Y %H:%M:%S',
                       qw(--stream 0.4 --monotonic)],
@@ -2177,7 +2327,7 @@ sub tryplot
   my %args = @_;
 
   my @options = ('--exit',
-                 '--extracmds', 'unset grid',
+                 qw(--unset grid),
                  '--terminal', 'dumb 100,40');
   unshift @options, @{$args{options}};