标签：echo
echo的使用记录
-n 用法：输出不换行
例如：
echo -n "a1: "
echo "b2"
得到：
a1: b2
-e 用法：允许后面的输出进行转义
例如：
exit_script()
{
echo -e "\033[1;40;31mInstall $1 error,will exit.\n\033[0m"
rm -f $LOCKfile
exit 1
}
LOCKfile=/tmp/.$(basename $0)
if [ -f "$LOCKfile" ]
then
echo -e "\033[1;40;31mThe script is already exist,please next time to run this script.\n\033[0m"
exit
else
echo -e "\033[40;32mStep 1.No lock file,begin to create lock file and continue.\n\033[40;37m"
touch $LOCKfile
fi
#check user
if [ $(id -u) != "0" ]
then
echo -e "\033[1;40;31mError: You must be root to run this script, please use root to install this script.\n\033[0m"
rm -f $LOCKfile
exit 1
fi标签：echo
原文地址：http://nosmoking.blog.51cto.com/3263888/1659720
