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Top Forums Shell Programming and Scripting search and replace with restriction (awk, sed) Post 302180598 by knoxo on Monday 31st of March 2008 03:17:50 PM
Old 03-31-2008
Thank you for your reply, but i forgot to mention that i can not rely on the order of 'A' and 'bar'. i just can assume that they appear anywhere in that line.
So perhaps a modification of this sed-command would do the task.

For example,

Code:
sed '/bar A/ s/new/done/' filename

would search for the pattern "bar A" and then replace new with done in that particular line.
But what I need is an expression for the pattern like
"'bar' AND 'A' appear in that line".
Now its more like
"'bar A' appears in that line".
Anyone who can help?
 

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FINDRULE(1)						User Contributed Perl Documentation					       FINDRULE(1)

NAME
findrule - command line wrapper to File::Find::Rule USAGE
findrule [path...] [expression] DESCRIPTION
"findrule" mostly borrows the interface from GNU find(1) to provide a command-line interface onto the File::Find::Rule heirarchy of modules. The syntax for expressions is the rule name, preceded by a dash, followed by an optional argument. If the argument is an opening parenthesis it is taken as a list of arguments, terminated by a closing parenthesis. Some examples: find -file -name ( foo bar ) files named "foo" or "bar", below the current directory. find -file -name foo -bar files named "foo", that have pubs (for this is what our ficticious "bar" clause specifies), below the current directory. find -file -name ( -bar ) files named "-bar", below the current directory. In this case if we'd have omitted the parenthesis it would have parsed as a call to name with no arguments, followed by a call to -bar. Supported switches I'm very slack. Please consult the File::Find::Rule manpage for now, and prepend - to the commands that you want. Extra bonus switches findrule automatically loads all of your installed File::Find::Rule::* extension modules, so check the documentation to see what those would be. AUTHOR
Richard Clamp <richardc@unixbeard.net> from a suggestion by Tatsuhiko Miyagawa COPYRIGHT
Copyright (C) 2002 Richard Clamp. All Rights Reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
File::Find::Rule perl v5.18.2 2011-09-19 FINDRULE(1)
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