exec Command exec
Execute command directly
exec [command]
The shell sh normally executes commands with a fork system call,
which creates a new process. The shell command exec directly ex-
ecutes the given command with an exec system call instead. Norm-
ally, this terminates execution of the current shell.
If the command consists only of redirection specifications, as
described in sh, exec redirects the input or output of the cur-
rent shell accordingly without terminating it. If the command is
omitted, exec has no effect.
***** See Also *****
commands, exec, fork(), sh
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