Linux Operating System Question:
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You locate a command in the /bin directory but do not know what it does. What command can you use to determine its purpose

whatis

The whatis command displays a summary line from the man page for the specified command in Linux.

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You suspect that you have two commands with the same name as the command is not producing the expected results. What command can you use to determine the location of the command being run?	You wish to create a link to the /data directory in bob's home directory so you issue the command ln /data /home/bob/datalink but the command fails. What option should you use in this command line to be successful.