| Which Perl built-in function do you use | function |
| to receive a message from a socket | |
| to suspend execution for a given amount of seconds | |
| to get the current file position in a file | |
| to create a new process | |
| to test whether the end of the file is reached | |
| to change the working directory of the current program | |
| to change the root directory of the current program | |
| to get the current login name, if any | |
| to perform an action on each element of a list and return a list of the results | |
| to restart a loop block without reevaluating the conditional (*) | |
| to exit the innermost loop (*) | |