Refer sort -u

This commit is contained in:
shigemk2 2015-01-12 21:29:35 +09:00
parent 353fe48d60
commit 2e1cda114a

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@ -1,4 +1,5 @@
# show all lines without duplication
# "sort -u" and "uniq" is the same effect.
sort file | uniq
# show not duplicated lines
sort file | uniq -u