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Full Discussion: grep data from header of files
Top Forums UNIX for Dummies Questions & Answers grep data from header of files Post 302089299 by anbu23 on Monday 18th of September 2006 12:50:12 PM
Old 09-18-2006
if you want to do this on everyfile in a particular directory
store directories in variable

Code:
DIR="/usr/xxx/
...
..."
for d in $DIR
cd "$d"
for file in *
do
   sed "s/^#.*\$\(.*\)\$.*$/\1/" $file
done


or if you want to do on particular files then store files with path name in a variable
Code:
path="/usr/xxx/1.txt
...
..."
for file in $path
do
   sed "s/^#.*\$\(.*\)\$.*$/\1/" $file
done

Last edited by anbu23; 09-18-2006 at 01:55 PM..
 

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LEARN ABOUT SUSE

guards

GUARDS(1)						User Contributed Perl Documentation						 GUARDS(1)

NAME

       guards - select from a list of files guarded by conditions

SYNOPSIS

       guards [--prefix=dir] [--path=dir2:dir2:...] [--default=0|1]	   [-v|--invert-match] [--list|--check] [--config=file]        symbol ...

DESCRIPTION

       The script reads a configuration file that may contain so-called guards, file names, and comments, and writes those file names that satisfy
       all guards to standard output. The script takes a list of symbols as its arguments. Each line in the configuration file is processed
       separately. Lines may start with a number of guards. The following guards are defined:

	   +xxx Include the file(s) on this line if the symbol xxx is defined.

	   -xxx Exclude the file(s) on this line if the symbol xxx is defined.

	   +!xxx Include the file(s) on this line if the symbol xxx is not defined.

	   -!xxx Exclude the file(s) on this line if the symbol xxx is not defined.

	   - Exclude this file. Used to avoid spurious --check messages.

       The guards are processed left to right. The last guard that matches determines if the file is included. If no guard is specified, the
       --default setting determines if the file is included.

       If no configuration file is specified, the script reads from standard input.

       The --check option is used to compare the specification file against the file system. If files are referenced in the specification that do
       not exist, or if files are not enlisted in the specification file warnings are printed. The --path option can be used to specify which
       directory or directories to scan.  Multiple directories are eparated by a colon (":") character. The --prefix option specifies the location
       of the files.

AUTHOR

       Andreas Gruenbacher <agruen@suse.de> (SuSE Linux AG)

perl v5.12.1							    2010-07-05								 GUARDS(1)
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