Prefix command output with duration for each line

program | gawk 'BEGIN { l=systime() ; p="-- start --" } { t=systime(); print t-l "s " p; l=t; p=$0 } END { t=systime(); print t-l "s " p}'
Prefixes each output line with time between it and the previous one.
Sample Output
0s -- start --
0s Reading package lists...
34s dh_strip -papp-common
1s dh_compress -papp-common
4s dh_fixperms -papp-common
0s dh_makeshlibs -papp-common
0s dh_strip -papp-web

By: Denis
2012-08-08 00:08:16

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

You must be signed in to comment.

What's this? is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.


Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: