shell脚本里判断某个命令是否存在

waketzheng

于 2024-10-17 19:23:13 发布

阅读量224

点赞数 1

文章标签： linux bash

本文链接：https://blog.youkuaiyun.com/jaket5219999/article/details/143026425

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Syntax:

if [ -x "$(command -v git)" ]; then
    echo 'command `git` exists.'
else
    echo git not found!
fi

Demo:

#!/bin/sh -e
set -x

[ -f pyproject.toml ] || ([ -f ../pyproject.toml ] && cd ..)

RUFF=ruff
if ! [ -x "$(command -v ruff)" ]; then
    poetry run ruff --version || poetry install
    RUFF="poetry run ruff"
fi
$RUFF format .
$RUFF check --fix --extend-select=I,B,SIM .

Example:

if [ -x "$(command -v apt)" ]; then
  sudo apt install -y zsh
elif [ -x "$(command -v yum)" ]; then
  sudo yum install -y zsh
elif [ -x "$(command -v brew)" ]; then
  brew install zsh
else
  echo You may need to install zsh manually.
fi