Related

How do I determine size of my site to estimate your hosting fee?

apt-get 404 Not found errors anywhere

Question

what is the sed command to swap 2 character strings in the same 1 line

Posted March 7, 2016 7.4k

DigitalOcean Linux Commands

example
input file: 03-06-2016
output file: 2016-03-06

By:

odg8

2 comments

seabrook2015 March 7, 2016
Reply Report
You need to use the substitute command, match and mark stuff on the left with ( ) and recall it on the right with \1 \2 \3, etc. In this case sed -n ’s/([0-9][0-9])-([0-9][0-9])-([0-9][0-9][0-9][0-9])/\3-\1-\2/’ <inputfile. Untested.
Dick S.
seabrook2015 March 7, 2016
Reply Report
Oops – this editor lost the backslashes in front of ALL the left and right parentheses in the above. Kindly insert them while I figure out how to deal with this editor!
Dick S.

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

×

1 answer

mragusa March 9, 2016

Hello,

The following post on stackoverflow may be a great resource:
http://unix.stackexchange.com/questions/21061/cleanly-swap-all-occurences-of-two-strings-using-sed

You may also check out: http://www.cyberciti.biz/faq/howto-sed-substitute-find-replace-multiple-patterns/

Please let us know if there is anything else we can help you with.

Best,
Mike
DigitalOcean Support
Check out our community for great tutorials, articles and FAQs!
https://digitalocean.com/community

Reply Report

Submit an Answer

Looking for something else?

Ask a new question Search for more help