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2. Multiple commands

1.2.1. Pipes Pipes are used for sending output of one command to next command. # total number of files in the directory $ ls | wc -l 1# word counts for file testfile.txt $ cat testfile.txt | wc 8 37 188

1.2.2. Run individual commands (;) Commands can be run separately from one line by separating them using semicolon, $ date; ls Thu Feb 23 15:24:09 NZDT 2017 testfile.txt