GNU parallel is a shell tool for executing jobs concurrently locally or using remote computers. A job is typically 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.
GNU sem is an alias for GNU parallel --semaphore.
It works as a tool for executing shell commands in parallel. GNU sem acts as a counting semaphore. When GNU sem is called with command it will start the command in the background. When num number of commands are running in the background, GNU sem will wait for one of these to complete before starting another command.
GNU sql aims to give a simple, unified interface for accessing databases through all the different databases' command line clients. The database is addressed using a DBURL. If commands are left out you will get that database's interactive shell.
GNU sql is often used in combination with GNU parallel.
GNU niceload will run a program when the load average is below a certain limit. When the limit is reached the program will be suspended for some time. Then resumed again for some time. Then the load average is checked again and we start over.
Copyright (C) 2007-10-18 Ole Tange, http://ole.tange.dk
Copyright (C) 2008,2009,2010 Ole Tange, http://ole.tange.dk
Copyright (C) 2010,2011 Ole Tange, http://ole.tange.dk and Free Software Foundation, Inc.
Parts of the manual concerning xargs compatibility is inspired by the manual of xargs from GNU findutils 4.4.2.
Copyright (C) 2007,2008,2009,2010,2011 Free Software Foundation, Inc.
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