UNIX for Dummies Questions & Answers

I have created a nawk program and passing a file as an input parameter.
The filename will be /home/dir/ksh/test.out

I need to extract the filename alone. Is there anyway to get this ?

Input : /home/dir/ksh/test.out
Output -1: test.out
Output -2 : t

Input : /home/dir/kshfiles/file.out
Output -1: file.out
Output -2 : e

And from this output I need to extract the particular 4th character from the last. The filename and the directorynamewill get vary each and every time. So I need to manipulate from the last.

You can do it with sed:

Code:

input=/home/dir/kshfiles/file.out
output1=`echo $input | sed 's;.*/;;g'`
output2=`echo $output1 | sed 's/.*\([0-9a-z]\)\..\{3\}/\1/' `

hope that helps.