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==Job Control== This tip shows you how to use the basics of job control in the shell by putting processes in the background and returning them to the foreground. Whenever you execute a command at the command line, that's a job that has to be run. Most commands execute quickly and return you to the command line. But some commands (for example, using cp to copy a large amount of data), can take a long time. When that happens, your terminal will be unaccessible unless you put the job in the background. To put a job in the background, type ctrl-z to suspend the job (and regain control of your terminal), and then type bg to put the job in the background. Code Listing 1 % cp file backup/file Ctrl-z zsh: 1398 suspended cp file backup/file % bg [1] + continued cp file backup/file Alternatively, you can put the job in the background from the start using the & sign. Code Listing 2 % cp file backup/file & [1] 1608 To see your running jobs you can use jobs. If you need to stop a job, you can use kill %jobnumber Code Listing 3 % cp file backup/file & [1] 1751 % jobs [1] + running cp file backup/file % kill %1 // no news is good news From http://www.gentoo.org/news/en/gwn/20040209-newsletter.xml
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