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* df, exec, exit, export: fix more info link * df: update outdated Farsi translation --------- Co-authored-by: Mohammad Reza Soleimani <87926618+MrMw3@users.noreply.github.com> Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>
21 lines
478 B
Markdown
21 lines
478 B
Markdown
# trap
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> 在进程或操作系统接收到信号后自动执行命令。
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> 可用于对用户中断或其他操作执行清理。
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> 更多信息:<https://manned.org/trap.1posix>.
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- 列出设置 trap 的可用信号:
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`trap -l`
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- 列出当前 shell 程序的活动 trap 程序:
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`trap -p`
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- 设置 trap 以在检测到一个或多个信号时执行命令:
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`trap 'echo "检测到信号 {{SIGHUP}}"' {{SIGHUP}}`
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- 移除活动 trap:
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`trap - {{SIGHUP}} {{SIGINT}}`
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