apply a command to a set of
apply runs the named
command on each given argument
Character sequences of the form
%d” in command,
where ‘d’ is a digit from 1 to 9, are replaced by the
d'th following unused
argument. In this case, the largest digit number of
arguments are discarded for each execution of
The options are as follows:
- Normally arguments are taken singly; the optional number
-# specifies the number of arguments to be passed to command. If the number is zero, command is run, without arguments, once for each argument.
If any sequences of “
%d” occur in command, the
-# option is ignored.
- Use magic as the magic character instead of the
- Debug mode. Print commands to the standard output but do not actually execute them.
- Pathname of shell to use. If this variable is not defined, the Bourne shell is used.
- default shell
Operate similar to ls(1):
$ apply echo *
Compare the a* files to the b* files:
$ apply -2 cmp a1 b1 a2 b2 a3 b3
Run who(1) five times:
$ apply -0 who 1 2 3 4 5
Link all files in the current directory to the directory /home/joe:
$ apply 'ln %1 /home/joe' *
apply command appeared in
Shell metacharacters in command may have bizarre effects; it is best to enclose complicated commands in single quotes ('').