topic Re: edit string with sed in Operating System - HP-UX

edit string with sed

lawrenzo_1 — Fri, 05 Jun 2009 13:45:28 GMT

Hi all,

I'm trying to work out how to use sed to keep the 5th and 6th Characters from the below string - can someone explain how I can do this?

inndot1

I want to keep "ot"

Thanks

Chris

Re: edit string with sed

James R. Ferguson — Fri, 05 Jun 2009 13:56:32 GMT

Hi Chris:

# X="inndot1"
# echo ${X}|sed -e 's/....$..$.*/\1/'
ot

Regards!

...JRF...

Re: edit string with sed

Mel Burslan — Fri, 05 Jun 2009 14:14:12 GMT

I am not sure why you are hung on using sed for this job. sed is used more for editing, replacing large files or doing more complex tasks.

If your heart is not set on using sed, why not use cut as in

echo mystring | cut -c 5-6

Re: edit string with sed

Dennis Handly — Sat, 06 Jun 2009 07:51:16 GMT

You could also use expr(1):
expr substr "$X" 5 2

Re: edit string with sed

lawrenzo_1 — Sat, 06 Jun 2009 12:12:49 GMT

all options are good for me - thanks all.