How to align columns in output from a UNIX command?
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Chapters
00:00 How To Align Columns In Output From A Unix Command?
00:27 Accepted Answer Score 37
00:42 Answer 2 Score 3
01:23 Thank you
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Full question
https://superuser.com/questions/183861/h...
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Tags
#unix
#avk47
Rise to the top 3% as a developer or hire one of them at Toptal: https://topt.al/25cXVn
--------------------------------------------------
Music by Eric Matyas
https://www.soundimage.org
Track title: Switch On Looping
--
Chapters
00:00 How To Align Columns In Output From A Unix Command?
00:27 Accepted Answer Score 37
00:42 Answer 2 Score 3
01:23 Thank you
--
Full question
https://superuser.com/questions/183861/h...
--
Content licensed under CC BY-SA
https://meta.stackexchange.com/help/lice...
--
Tags
#unix
#avk47
ACCEPTED ANSWER
Score 37
It's column
. Try for example echo -e "aaaaa bbbbbbb\ncc ddd" | column -t
.
ANSWER 2
Score 3
awk
solution that deals with stdin
Since column
is not POSIX, maybe this is:
mycolumn() ( file="${1:--}" if [ "$file" = - ]; then file="$(mktemp)" cat >"${file}" fi awk ' FNR == 1 { if (NR == FNR) next } NR == FNR { for (i = 1; i <= NF; i++) { l = length($i) if (w[i] < l) w[i] = l } next } { for (i = 1; i <= NF; i++) printf "%*s", w[i] + (i > 1 ? 1 : 0), $i print "" } ' "$file" "$file" if [ "$file" = - ]; then rm "$file" fi )
Test:
printf '12 1234 1 12345678 1 123 1234 123456 123456 ' > file
Test commands:
mycolumn file mycolumn <file mycolumn - <file
Output for all:
12 1234 1 12345678 1 123 1234 123456 123456
See also: