Read, sort and confirm uniqueness of entries in files and directories

sort -u filename > newfilename
For users looking to simplify management of large entries in files and directories, this command is the key to fun and simplicity. Using the power sort, only a couple of seconds are necessary to accomplish what would take minutes or hours in ?standard? client applications.

2009-04-16 20:00:34

What Others Think

less is being misused here. What you really mean is cat filename | sort, or instead: sort filename | uniq > newfilename If I am reading the manpage correctly, I think using the -u flag on sort will do the job of uniq: this will also do it: sort -u filename > newfilename
bwoodacre · 652 weeks and 6 days ago
yeah that use of less didn't look right. -n sorts numerically -r reverses
tobiasboon · 652 weeks and 6 days ago
confirming bwoodacre's reading of the man page (I use "sort -u" all the time). His second code snippet does the job.
amosshapira · 652 weeks and 6 days ago
Nice recommendations guys, always very helpfull! Long live command line!
deijmaster · 652 weeks and 5 days ago

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?

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