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Full Discussion: Pattern match
Top Forums Shell Programming and Scripting Pattern match Post 302930779 by RavinderSingh13 on Wednesday 7th of January 2015 10:10:44 AM
Old 01-07-2015
Quote:
Originally Posted by freakabhi
I have requirement of parsing file names from given directory based on the pattern ( pattern will be parameter to script and can be any ).
for example, user enterred 2 params :
1) directory name : /dirname/
2) filename_pattern : *.dat_????
and there are 2 files in the directory as :

/dirname/a.dat_1234
/dirname/b.dat_4567
now I need to parse and retrive filename with static portion :
result :
1) a.dat_
2) b.dat_
Can you please give some pointers to solution, what are the ways this can be implemented.
Thanks in advance ...
Thanks
Abhijeet R
Hello Abhijeet,

Kindly use code tags for commands/codes in your posts. Following command may help you in same.
Code:
echo "/dirname/a.dat_1234" | awk '{sub(/.*\//,X,$0);sub(/\_.*/,"_",$0);print}'

Output will be as follows.
Code:
a.dat_

Thanks,
R. Singh
 

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DIRNAME(1)							   User Commands							DIRNAME(1)

NAME
dirname - strip non-directory suffix from file name SYNOPSIS
dirname NAME dirname OPTION DESCRIPTION
Print NAME with its trailing /component removed; if NAME contains no /'s, output `.' (meaning the current directory). --help display this help and exit --version output version information and exit EXAMPLES
dirname /usr/bin/sort Output "/usr/bin". dirname stdio.h Output ".". AUTHOR
Written by David MacKenzie and Jim Meyering. REPORTING BUGS
Report dirname bugs to bug-coreutils@gnu.org GNU coreutils home page: <http://www.gnu.org/software/coreutils/> General help using GNU software: <http://www.gnu.org/gethelp/> COPYRIGHT
Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
basename(1), readlink(1) The full documentation for dirname is maintained as a Texinfo manual. If the info and dirname programs are properly installed at your site, the command info coreutils 'dirname invocation' should give you access to the complete manual. GNU coreutils 7.1 July 2010 DIRNAME(1)
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