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Adding a backslash in front of square brackets with sed

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Top Forums Shell Programming and Scripting Adding a backslash in front of square brackets with sed
# 15  
Old 03-15-2013
Are you trying to call the sed external command or are you trying to trying to write a literal string containing echo, pipe and the sed command itself to a dynamically created shells script? In the first case you would need to use 4 backslashes and the backslash before the g needs to be forward. In the latter case, perhaps you should use a here-doc.
Last edited by Scrutinizer; 03-15-2013 at 05:25 AM..
# 16  
Old 03-15-2013
Code:
print {$sh} "set expr=`echo $temp | sed 's/[][]/\\\\&/g'`\n";

Better do it in perl
Code:
$temp =~ s/([][])/\\$1/g;
print {$sh} "set expr=$temp\n";
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