UNIX for Dummies Questions & Answers

Hai,


The command sed 's/...$//' filename is not working.i need an unix command that works in the command mode i.e in the esc mode.pease let me know the command to delete the last 3 letters in every line of a file .The 3 letters vary from line to line.

Regards
suneetha.

sed 's/...$//g'

1.- You could've asked in the original thread.
2.- "Esc mode"? Guess what you wanted is a command you can run inside vi? Maybe if you would've asked for the vi command? The command I gave you works just fine on the command line. I'll let you figure out the vi form of the command.
3.- The g is unnecessary. It makes the comand execute on all instances in a line. The last 3 digits of the line appear only once.

Hi,

sed -e 's/...$//g' <filename> works fine. If at all you want to edit the file in vi mode then u can use Esc, :%s/...$//g, press enter, then :wq to save the file.

rgds,
jam