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/user/ahamed/login $ echo "10.11 -11.00" | nawk '{ printf("%0.2f\n", $1 + $2)}'
-0.89
--ahamed

$ a=10.02
$ pattern=-11.01
$ echo $pattern + $a | bc
-.99
$ echo $pattern \* $a | bc
-110.33
$


---------- Post updated at 03:17 PM ---------- Previous update was at 03:15 PM ----------

...

$ grep -i 'deep' filename | sed '1d'

man uniq
But you have to sort the file before.

sed "s/.*@//g" inputfile

atime == last time file was read, usually you want mtime which is what ls -l shows.


find /ons/sam/ -name 'DS*' -mtime -2


Note: this gives you files less than 48 hours old. If you meant...