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Function: execute a command as another user
Usage: sudo -h | -K | -k | -V
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Function: change file owner and group
Usage: chown [OPTION]... --reference=RFILE FILE...
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Function: format and display the on-line manual pages
Usage: man [-acdDfFhkKtvVwW] [--path] [-m system] [-p string] [-C config_file] [-M pathlist] [-P pager] [-B browser] [-H htmlpager] [-S section_list]
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Function: Vi IMproved, a programmers text editor
Usage: vim [options] [file ..]
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Function: identify processes using files or sockets
Usage: fuser -l
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Function: Find unique and shared lines between two files
Usage: comm [OPTION]... FILE1 FILE2
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Function: Vi IMproved, a programmers text editor
Usage: view
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Function: print lines matching a pattern
Usage: grep [OPTIONS] PATTERN [FILE...]
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Function: text editor
Usage: red [-GVhs] [-p string] [file]
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Function: make links between files
Usage: ln [OPTION]... [-T] TARGET LINK_NAME
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Function: find files by name
Usage: locate [OPTION]... PATTERN...
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Function: search the whatis database for strings
Usage: apropos keyword ...
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Function: initialize a terminal or query terminfo database
Usage: tput [-Ttype] reset
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Function: Split a file into pieces
Usage: split [OPTION]... [INPUT [PREFIX]]
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Function: time a simple command or give resource usage
Usage: time [options] command [arguments...]