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| Chapter 11 The Awk Scripting Language |

## system

    system(command)

Function that executes the specified `command` and returns its status. The status of the command that is executed typically indicates its success (1), completion (0) or unexpected error (-1). The output of the command is not available for processing within the awk script. Use "`command` | getline" to read the output of the command into the script. {N}

Reference: substr |  | Reference: tolower