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simpler version:
sed s:dmp_file_lst:`ls \/opt\/abcd\/efgh\/export_dump\/$DMP_FILE_NM*.dmp`:g

Put this in the script containing the "sort" command.
Do not put it in /etc/profile or root's .profile because it refers to a filesystem which may not be mounted in every run state.


The...

It will be /var/tmp by default unless you have $TMPDIR set.
See man sort and the "-T" parameter regarding how to change it. You could need three times the size of the original file for work space.
...

If you want to pass spaces on the command line, you should enclose the assignment in quotations, i.e.


awk -v "variable=${var}"


But actually your problem is the input read from stdin (by a...

$Aug will not come up 8. Aug will come up 8.

The -v solution will never work because variables don't work that way. You can't feed awk 8 and have awk decide "oh, there's a variable named Aug...

Try this and see if returns the desired output:

ll|awk -v "year=`date '+%Y'`" '$8!~":"{if(NR>1)printf"%-29s\t\t%s\t%5s\t\t%s %s,%s\n", $9,$1,$5,$6,$7,$8} {if(NR>1)printf"%-29s\t\t%s\t%5s\t\t%s...

ll | awk ' !/^d/ { if(NR>1) {printf "%-29s\t\t%s\t%5s\t\t%s %s,%s\n", $9,$1,$5,$6,$7,$8} }'

better to post your ls command output and the required output format