execline
Software
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The exec program

exec executes the command line it is given.

Interface

     exec [ -c ] [ -l ] [ -a argv0 ]prog...

exec execs into prog.... It does nothing else.
Without options, exec can be seen as the execline NOP.

Options

The exec command, along with its options, is designed to emulate the standard exec shell builtin, which replaces the shell with the command it is given.