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ulimit

ulimit is a shell builtin command used to show and set various restrictions on resource usage for a shell. Among the limitations that can be set you find, maximum file size, maximum core file size, maximum size of resident memory. Though the restrictions are shell-independent, the exact syntax depends on what shell you are running.

It's a good practice to set some of these limitations to prevent for instance a faulty shell script to start unlimited copies of it self or to prevent users on the system to start processes that run forever.
Posted on May 31st, 2014

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