Shell 语法记录

把一个数组作为参数传递给 Shell 脚本

modules=($1)

for moduleDir in ${modules[@]}
do
echo $moduleDir
done

./createBranch.sh '132 323 323'

获取命令的输出结果

比如在执行了 git status 后，想要拿到结果，并进行赋值，可通过 `` 实现

    status=`git status`
    echo $status

在字符串中进行查找

grep 方法

    status=`git status`
    cleanStatus="nothing to commit"
    result=$(echo $status | grep "${cleanStatus}")
    if [[ "$result" != "" ]]
    then
        echo ""
    else
        echo $moduleDir" 模块尚有代码未提交，或者有其他更改，请先检查后，在选择创建分支"
    fi

字符串特定字符替换

string="a,b,c,d"
echo $string
res="${string//,/$'-'}"
echo $res

如果要替换特殊字符，则需要转义
如 ' -> '

判断字符是否为空

STRING=
# 空判断
if [ -z "$STRING" ]; then 
    echo "STRING is empty" 
fi
# 非空判断
if [ -n "$STRING" ]; then 
    echo "STRING is not empty" 
fi

The issue mentions createBranch.sh and shell examples using git status, grep, substitution, and string tests; first locate the blog source page where this note belongs. Review the examples for the intended documentation scope, then confirm the page renders correctly and that the documented commands remain understandable.