411 REFERENCE · Wikibooks
Guide to Unix/Explanations/Interprocess Communication
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
PIPEs
One of the beauties of UNIX/Linux are pipes. Pipes are used for redirecting STDOUT (standard out) to STDIN (standard in).
$ command1 | command2
command1 standard output is redirected as standard input to command2.
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