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Top Forums Shell Programming and Scripting Sed to print a string until the second occurrence of a character Post 302367089 by Scrutinizer on Sunday 1st of November 2009 07:25:01 AM
Old 11-01-2009
Alternatively if the requirement can be stretched so that extension that needs to be cut always starts with a number then this would work too:
Code:
bkp=$(echo "c:\working\html\index.txt.12-12-2009.bkp" | sed 's/\.[0-9].*//')

or if the cut off is always .string.string then we can use plain variable expansion:
Code:
bkp="c:\working\html\index.txt.12-12-2009.bkp"
echo ${bkp%.*.*}


Last edited by Scrutinizer; 11-01-2009 at 09:07 AM..
 

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ShellQuote(3pm) 					User Contributed Perl Documentation					   ShellQuote(3pm)

NAME
String::ShellQuote - quote strings for passing through the shell SYNOPSIS
$string = shell_quote @list; $string = shell_quote_best_effort @list; $string = shell_comment_quote $string; DESCRIPTION
This module contains some functions which are useful for quoting strings which are going to pass through the shell or a shell-like object. shell_quote [string]... shell_quote quotes strings so they can be passed through the shell. Each string is quoted so that the shell will pass it along as a single argument and without further interpretation. If no strings are given an empty string is returned. If any string can't be safely quoted shell_quote will croak. shell_quote_best_effort [string]... This is like shell_quote, excpet if the string can't be safely quoted it does the best it can and returns the result, instead of dying. shell_comment_quote [string] shell_comment_quote quotes the string so that it can safely be included in a shell-style comment (the current algorithm is that a sharp character is placed after any newlines in the string). This routine might be changed to accept multiple string arguments in the future. I haven't done this yet because I'm not sure if the strings should be joined with blanks ($") or nothing ($,). Cast your vote today! Be sure to justify your answer. EXAMPLES
$cmd = 'fuser 2>/dev/null ' . shell_quote @files; @pids = split ' ', `$cmd`; print CFG "# Configured by: ", shell_comment_quote($ENV{LOGNAME}), " "; BUGS
Only Bourne shell quoting is supported. I'd like to add other shells (particularly cmd.exe), but I'm not familiar with them. It would be a big help if somebody supplied the details. AUTHOR
Roderick Schertler <roderick@argon.org> SEE ALSO
perl(1). perl v5.8.4 2005-05-03 ShellQuote(3pm)
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