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jaytaylor/awk_prefix_seconds_elapsed.md

Last active December 7, 2017 22:05
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awk script to prepend seconds elapsed to output of another command.
Raw
awk_prefix_seconds_elapsed.md 
( for i in $(seq 1 5); do echo $i ; sleep $i ; done ) \
| gawk 'BEGIN { since = systime() } { printf "%-7s", (systime() - since) "s" ; print }'

Output:

0s     1
1s     2
3s     3
6s     4
10s    5

Bash alias:

alias elapsed='gawk '"'"'BEGIN { since = systime() } { printf "%-7s", (systime() - since) "s" ; print }'"'"
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