github.com/mithrandie/csvq@v1.18.1/docs/_posts/2006-01-02-system-functions.md (about)

     1  ---
     2  layout: default
     3  title: System Functions - Reference Manual - csvq
     4  category: reference
     5  ---
     6  
     7  # System Functions
     8  
     9  | name | description |
    10  | :- | :- |
    11  | [CALL](#call) | Execute a external command |
    12  
    13  ## Definitions
    14  
    15  ### CALL
    16  {: #call}
    17  
    18  ```
    19  CALL(command [, argument ...])
    20  ```
    21  
    22  _command_
    23  : [string]({{ '/reference/value.html#string' | relative_url }})
    24  
    25  _argument_
    26  : [string]({{ '/reference/value.html#string' | relative_url }})
    27  
    28  _return_
    29  : [string]({{ '/reference/value.html#string' | relative_url }})
    30  
    31  Execute an external _command_ and returns the standard output as a string.
    32  If the external command failed, then the executing procedure is terminated with an error.