mirror of
https://github.com/fish-shell/fish-shell.git
synced 2024-12-18 12:33:38 +08:00
33 lines
748 B
ReStructuredText
33 lines
748 B
ReStructuredText
count - count the number of elements of an array
|
|
================================================
|
|
|
|
Synopsis
|
|
--------
|
|
|
|
count $VARIABLE
|
|
|
|
|
|
Description
|
|
-----------
|
|
|
|
``count`` prints the number of arguments that were passed to it. This is usually used to find out how many elements an environment variable array contains.
|
|
|
|
``count`` does not accept any options, not even ``-h`` or ``--help``.
|
|
|
|
``count`` exits with a non-zero exit status if no arguments were passed to it, and with zero if at least one argument was passed.
|
|
|
|
|
|
Example
|
|
-------
|
|
|
|
|
|
|
|
::
|
|
|
|
count $PATH
|
|
# Returns the number of directories in the users PATH variable.
|
|
|
|
count *.txt
|
|
# Returns the number of files in the current working directory ending with the suffix '.txt'.
|
|
|