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Other Information

Other useful programs for exploring what is available and how to perform various tasks are:

apropos--Find programs related to a given keyword.
file--Identify a file by category (text, shell script, executable, etc.)
info--Browse through online info documentation. (Linux hosts only)
whatis--Give a one-line description of a program.
whereis--Locate source, binary, or manual for a program.
which--Locate executable program.