shell脚本中语句太长时，换行操作

最新推荐文章于 2024-07-16 02:19:24 发布

原创最新推荐文章于 2024-07-16 02:19:24 发布

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#shell

如下面shell判断语句很长且不易读，如能在适当位置换行则显得整齐易读。

修改前：


if cat /etc/SuSE-release | grep -i "suse" >/dev/null 2>&1 && [ `cat /etc/SuSE-release | grep "VERSION" | awk '{print $3}'` == "12" ] && [ `cat /etc/SuSE-release |grep "PATCHLEVEL" | awk '{print $3}'` == "4" ];then
     echo "This system is SUSE 12 SP4"
else
     echo "This system is noe SUSE 12 SP4"
fi

修改后：

if cat /etc/SuSE-release | grep -i "suse" >/dev/null 2>&1 && \
[ `cat /etc/SuSE-release | grep "VERSION" | awk '{print $3}'` == "12" ] && \
[ `cat /etc/SuSE-release |grep "PATCHLEVEL" | awk '{print $3}'` == "4" ];then
     echo "This system is SUSE 12 SP4"
else
     echo "This system is noe SUSE 12 SP4"
fi