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Full Discussion: Bash: evaluating $? variable (if statement)
Top Forums Shell Programming and Scripting Bash: evaluating $? variable (if statement) Post 302212643 by aristegui on Tuesday 8th of July 2008 04:33:04 AM
Old 07-08-2008
Quote:
Originally Posted by awk
And this is why we want to see the code

Code:
#!/bin/bash
echo "Parameter $1"
echo "$?"
$SCHRODINGER/utilities/reagentprep -listfull | grep $1
echo "$?"

if [ $? == 1 ]then
echo "Error"
exit
fi

the if statement is evaluating the echo Condition, not the grep as intended.

try instead

Code:
$SCHRODINGER/utilities/reagentprep -listfull | grep $1

STATUS=$?
echo "$STATUS"

if [ $STATUS == 1 ]then
echo "Error"
exit
fi

Shame on me... thank you very much!!!
 

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LEARN ABOUT DEBIAN

ppix::editortools::introducetemporaryvariable

PPIx::EditorTools::IntroduceTemporaryVariable(3pm)	User Contributed Perl Documentation	PPIx::EditorTools::IntroduceTemporaryVariable(3pm)

NAME

       PPIx::EditorTools::IntroduceTemporaryVariable - Introduces a temporary variable using PPI

SYNOPSIS

	   my $munged = PPIx::EditorTools::IntroduceTemporaryVariable->new->introduce(
	       code	      => "use strict; BEGIN {
	       $^W = 1;
       }
	my $x = ( 1 + 10 / 12 ) * 2;
	my $y = ( 3 + 10 / 12 ) * 2;
",
	       start_location => [ 2, 19 ],
	       end_location   => [ 2, 25 ],
	       varname	      => '$foo',
	   );
	   my $modified_code_as_string = $munged->code;
	   my $location_of_new_var_declaration = $munged->element->location;

DESCRIPTION

       Given a region of code within a statement, replaces all occurrences of that code with a temporary variable. Declares and initializes the
       temporary variable right above the statement that included the selected expression.

METHODS

       new()
	   Constructor. Generally shouldn't be called with any arguments.

       find( ppi => PPI::Document, start_location => Int, end_location => Int, varname => Str ) =item find( code => Str, start_location => Int,
       end_location => Int, varname => Str )
	   Accepts either a "PPI::Document" to process or a string containing the code (which will be converted into a "PPI::Document") to
	   process.

	   Given the region of code specified by start_location and end_location, replaces that code with a temporary variable with the name given
	   in varname (defaults to "tmp"). Declares and initializes the temporary variable right above the statement that included the selected
	   expression.

	   Returns a "PPIx::EditorTools::ReturnObject" with the modified code as a string available via the "code" accessor (or as a
	   "PPI::Document" via the "ppi" accessor), and the "PPI::Token" where the new variable is declared available via the "element" accessor.

	   Croaks with a "no token" exception if no token is found at the location.  Croaks with a "no statement" exception if unable to find the
	   statement.

SEE ALSO

       This class inherits from "PPIx::EditorTools".  Also see App::EditorTools, Padre, and PPI.

perl v5.14.2							    2012-03-11			PPIx::EditorTools::IntroduceTemporaryVariable(3pm)
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