Workshop: Advanced GNU Parallel

GNU Parallel has come a long way since FSCons 2010

GNU parallel is a shell tool for executing jobs in parallel using one or more computers. A job can be a single command or a small script that has to be run for each of the lines in the input. The typical input is a list of files, a list of hosts, a list of users, a list of URLs, or a list of tables. A job can also be a command that reads from a pipe. GNU parallel can then split the input into blocks and pipe a block into each command in parallel.

This workshop will emphasize what has changed since GNU Parallel was presented at FSCONS 2010.

GNU parallel makes sure output from the commands is the same output as you would get had you run the commands sequentially. This makes it possible to use output from GNU parallel as input for other programs.

For each line of input GNU parallel will execute command with the line as arguments. If no command is given, the line of input is executed. Several lines will be run in parallel. GNU parallel can often be used as a substitute for xargs or cat | bash.

A lot of new options have been introduced since was presented at FSCONS2010. These options will be shown.

If you use the command line several times a week, then your command line will love you for learning GNU Parallel.

Info

Day: 2014-11-01
Start time: 19:00
Duration: 01:00
Room: C363
Track: Programming Languages
Language: en

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