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Full Discussion: awk substr
Top Forums Shell Programming and Scripting awk substr Post 302126329 by colesga on Wednesday 11th of July 2007 06:47:10 AM
Old 07-11-2007
awk substr
Hi

I have multiple files that name begins bidb_yyyymm. (yyyymm = current year month of file creation).

What I want to do is look at the files and where yyyymm is older than 1 month I want to remove the file from the server.

I was looking at looping through the files and getting the yyyymm from the filename and comparing it to the cuurent dates yyyymm.

for file in `ls *.gz`
do
now=`date '+%Y%m'`
fileext=awk substr($file,6,6)
if [$now-$fileext] <> 0
then
rm $file
fi

I was looking at awk substr to get the part of the filename i require but could not get this to work.

Has anyone done anything like this before or can point me in the right direction to achieve my objectives.

Cheers
Gary
 

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LEARN ABOUT DEBIAN

today

mhc(1)							      General Commands Manual							    mhc(1)

NAME

       today - Show your today's schedules.

SYNOPSIS

       today [options]

DESCRIPTION

       This  manual  page  documents  briefly  the today commands.  This manual page was written for the Debian GNU/Linux distribution because the
       original program does not have a manual page.

       today is a program that show your schedules in MHC repository.

OPTIONS

       A summary of options is included below.

       -h, --help
	      Show summary of options.

       --format=FORMAT
	      change output format.  FORMAT is 'html' or 'ps.

       --category=CATEGORY
	      Pick only in CATEGORY. '!' and space separated multiple values are allowed.

       --date=strig[+n]
	      Set a period of date. String is one of these: today, tomorrow, sun ... sat, yyyymmdd, yyyymm.  yyyymm lists all days in  the  month.
	      list n+1 days of schedules if +n is given.  default value is 'today+0'

       --mail=ADDRESS
	      Send a e-mail to ADDRESS instead of listing to stdout

SEE ALSO

       adb2mhc(1), gemcal(1), mhc-scan(1), mhc2palm(1), palm2mhc(1), mhc(5).

AUTHOR

       This  program  was  written by Yoshinari Nomura <nom@quickhack.net> and this manual page was written by Fumitoshi UKAI <ukai@debian.or.jp>,
       for the Debian GNU/Linux system (but may be used by others).

								    23 Jun 2000 							    mhc(1)
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