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Is it possible to open a new shell in a low priority (nice value = 19) so that every other command you type in the new shell has a low priority as well?

How?

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The obvious way?

nice -n 19 sh

If you want a terminal window, something like

nice -n 19 xterm

might be more to your liking (unless you prefer gnome-terminal, konsole, etc.).

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nice -19 sh works but it's monochrome and upper arrow key and TAB don't work properly is there a way to fix that? – user893730 May 5 '12 at 2:12
    
bash instead of sh if you want bash features. – geekosaur May 5 '12 at 2:13
    
Whoops, my mistake: nice +19 results in No such file or directory, while nice -19 works as expected. – bwDraco May 5 '12 at 3:32
1  
@DragonLord: csh worked that way. Technically we're both wrong anyway; POSIX killed both of those and it's nice -n INCREMENT COMMAND .... – geekosaur May 5 '12 at 3:34

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