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graphicsmagick-doc-1.3.33-1.1.mga7.noarch.rpm

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<br>&nbsp;<br>
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<a NAME="batch"></a>gm batch
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<a NAME="batch-top"></a>NAME
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batch - execute multiple gm commands as a script
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<a NAME="batch-contents"></a>Contents
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<dl>
<dt>
<a href="#batch-syno">Synopsis</a>
</dt>
<dt>
<a href="#batch-desc">Description</a>
</dt>
<dt>
<a href="#batch-exam">Examples</a>
</dt>
<dt>
<a href="#batch-opti">Options</a>
</dt>
</dl>
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<a NAME="batch-syno"></a>Synopsis
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<p>
<strong>gm batch</strong> <strong>[</strong> <em>options ...</em> <strong>]</strong> <strong>[</strong> <em>script</em> <strong>]</strong>
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<a NAME="batch-desc"></a>Description
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<p>
<strong>batch</strong> executes an arbitary number of the utility commands
(e.g. <strong>convert</strong>) in the form of a simple linear batch script in
order to improve execution efficiency, and/or to allow use as a
subordinate co-process under the control of an arbitrary script or
program.
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SRC="images/right_triangle.png"  ALT=">" BORDER=0 
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color="#00B04F"><font size="+1">
<a NAME="batch-exam"></a>Examples
</font></font></font></b></td></tr></table>
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<p> To drive <strong>'gm batch'</strong> using a shell script (or a program
written in any language), have the script/program send commands to 'gm
batch' via its standard input.  Specify that standard input should be
used by using <strong>'-'</strong> as the file name.  The following example
converts all files matching '*.jpg' to TIFF format while rotating each
file by 90 degrees and stripping all embedded profiles.  The shell
script syntax is standard Unix shell:
<pre>
  for file in *.jpg
  do
    outfile=`basename $file .jpg`.tiff
    echo convert -verbose "'$file'" -rotate 90 \
    +profile "'*'" "'$outfile'"
  done | gm batch -echo on -feedback on -
</pre>
<p>
We can accomplish the same as the previous example by putting all the
commands in a text file and then specifying the name of the text file
as the script to execute:
<pre>
  for file in *.jpg
  do
    outfile=`basename $file .jpg`.tiff
    echo convert -verbose "'$file'" -rotate 90 \
    +profile "'*'" "'$outfile'"
  done &gt; script.txt
  gm batch -echo on -feedback on script.txt
</pre>
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     <p>
<i><a href="#top">Back to Contents</a></i> 
&nbsp;</p>
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<a NAME="batch-opti"></a>Options
</font></font></font></b></td></tr></table>
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<p>
Options are processed from left to right and must appear before any filename argument.
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    -echo <i>on|off</i>
</font></font></font></b></td></tr></table>
<table width="90%" border="0" cellspacing="0"              cellpadding="8">              <tr><td width="6%"><br></td><td>command echo on or off</td></tr></table>
<p>
Specify <strong>on</strong> to enable echoing commands to standard output as
they are read or <strong>off</strong> to disable.  The default is
<strong>off</strong>.
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    -escape <i>unix|windows</i>
</font></font></font></b></td></tr></table>
<table width="90%" border="0" cellspacing="0"              cellpadding="8">              <tr><td width="6%"><br></td><td>Parse using unix or windows syntax</td></tr></table>
<p>
Commands must be parsed from the input stream and escaping needs to be
used to protect spaces or quoting characters in the input. Specify
<strong>unix</strong> to use unix-style command line parsing or <strong>windows</strong>
for Microsoft Windows command shell style parsing. The default depends
on if the software is compiled for Microsoft Windows or for a
Unix-type system (including Cygwin on Microsoft Windows).  It is
recommended to use unix syntax because it is more powerful and more
portable.
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ALT=">" BORDER=0 height=14
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><font color="#00B04F"><font size="+1">
    -fail <i>text</i>
</font></font></font></b></td></tr></table>
<table width="90%" border="0" cellspacing="0"              cellpadding="8">              <tr><td width="6%"><br></td><td>text to print if a command fails</td></tr></table>
<p>
When feedback is enabled, this specifies the text to print when the
command fails.  The default text is <strong>FAIL</strong>.
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ALT=">" BORDER=0 height=14
width=15><b><font face="Helvetica, Arial"
><font color="#00B04F"><font size="+1">
    -feedback <i>on|off</i>
</font></font></font></b></td></tr></table>
<table width="90%" border="0" cellspacing="0"              cellpadding="8">              <tr><td width="6%"><br></td><td>enable error feedback</td></tr></table>
<p>
Print text (see -pass and -fail options) feedback after each
command to indicate the result, the default is <strong>off</strong>.
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<img SRC="images/right_triangle_option.png"
ALT=">" BORDER=0 height=14
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><font color="#00B04F"><font size="+1">
    -help
</font></font></font></b></td></tr></table>
<p>
Prints batch command help.
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ALT=">" BORDER=0 height=14
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><font color="#00B04F"><font size="+1">
    -pass <i>text</i>
</font></font></font></b></td></tr></table>
<table width="90%" border="0" cellspacing="0"              cellpadding="8">              <tr><td width="6%"><br></td><td>text to print if a command passes</td></tr></table>
<p>
When feedback is enabled, this specifies the text to print when the
command passes.  The default text is <strong>PASS</strong>.
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<img SRC="images/right_triangle_option.png"
ALT=">" BORDER=0 height=14
width=15><b><font face="Helvetica, Arial"
><font color="#00B04F"><font size="+1">
    -prompt <i>text</i>
</font></font></font></b></td></tr></table>
<table width="90%" border="0" cellspacing="0"              cellpadding="8">              <tr><td width="6%"><br></td><td>Prompt text to use for command line</td></tr></table>
<p>
If no filename argument was specified, a simple command prompt appears
where you may enter GraphicsMagick commands.  The default prompt is
<strong>GM&gt;</strong>.  Use this option to change the prompt to something else.
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<td ALIGN=LEFT BGCOLOR="#FFFFFF">
<img SRC="images/right_triangle_option.png"
ALT=">" BORDER=0 height=14
width=15><b><font face="Helvetica, Arial"
><font color="#00B04F"><font size="+1">
    -stop-on-error <i>on|off</i>
</font></font></font></b></td></tr></table>
<table width="90%" border="0" cellspacing="0"              cellpadding="8">              <tr><td width="6%"><br></td><td>Specify if command processing stops on error</td></tr></table>
<p>
Normally command processing continues if a command encounters an
error.  Specify <strong>-stop-on-error on</strong> to cause processing to quit
immediately on error.
</td></tr></table>
     <p>
<i><a href="#top">Back to Contents</a></i> 
&nbsp;</p>
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