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sh(1)

apply(1)

Name

apply − apply a command to a set of arguments

Syntax

apply [−ac] [−n] command args...

Description

The apply program runs the named command on each argument arg in turn.  Normally arguments are chosen singly; the optional number n specifies the number of arguments to be passed to command.  If n is zero, command is run without arguments once for each arg.  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 arg.  If any such sequences occur, n is ignored, and the number of arguments passed to command is the maximum value of d in command.  The percent sign (%) character can be changed by the −a option. 

Examples

The following command line is similar to ls(:):

apply echo *

The next example compares the specified a files to the specified b files:

apply −2 cmp a1 b1 a2 b2 ...

The following example run the who command 5 times and links all files in the current directory to the directory /usr/joe:

apply ’ln %1 /usr/joe’ *

Restrictions

Shell metacharacters in command may have unexpected results; it is best to enclose complicated commands in single quotes (’ ’). 

You cannot pass a literal, ’%2’, if the percent sign (%) is the argument expansion character. 

See Also

sh(1)

Typewritten Software • bear@typewritten.org • Edmonds, WA 98026