修改提示符格式显示提示符[rootlocalhost ~]# echo $PS1[\u\h\W]\$修改提示符生产修改成红色cat/etc/profile.d/PS1.shEOF PS1\[\e[1;31m\][\u\h \W]\\$\[\e[0m\] EOF测试修改成绿色cat/etc/profile.d/PS1.shEOF PS1\[\e[1;32m\][\u\h \W]\\$\[\e[0m\] EOF