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Linux / Unix: 2. Command substitution. Create a single command line that shows the whatis output for every entry in /usr/bin . Many of the
Linux / Unix:
2. Command substitution. Create a single command line that shows the whatis output for every entry in /usr/bin. Many of the entries will not have any whatis info, indicated by an error message similar to this one:
/usr/bin/VGAuthService: nothing appropriate.
Your command line should NOT display these error messages, only the lines containing actual info about each entry in /usr/bin.
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