ulimit

Additional Notes

ulimit is a shell command used to show or set shell resource limits. It controls the resources available to the shell and its child processes, such as open file limits and stack size.

Use ulimit -n to view or set the maximum number of open file descriptors, which is commonly increased for database servers and web servers.

Syntax

ulimit [arguments]

Parameters

• options: Flags that change how ulimit behaves.
• arguments: Values consumed by the shell builtin or script command.
• command: Command line to run, test, wrap, or control.

Common Options

• --help: Show command help when supported.
• --version: Show version information when supported.

Examples

ulimit --help
man ulimit

Practical Notes

Options can vary by distribution and package version. Use man ulimit, ulimit --help, or the package documentation for exact syntax.