DESCRIPTION sl Displays animations aimed to correct users who accidentally enter sl instead of ls. SL stands for Steam Locomotive.
OPTIONS -a An accident seems to happen. You'll feel pity for people who cry for help.
-l shows little one.
-F It flies.
-e Allow interrupt by Ctrl+C.
2. rev 命令(reverse) 它会颠倒所输入的字符串。 $rev 终端会提示我们通过标准输入提供一个字符串。那么在每行后面我们就可以同时看到输出。 比如,我们输入"mylinuxbook"然后按回车。 mylinuxbook koobxunilym $ cat strings.txt MyLinuxBook Linux is so much fun! Happy Birthday
$ rev strings.txt kooBxuniLyM !nuf hcum os si xuniL yadhtriB yppaH
3. fortune 命令 我们运行这个命令的时候随机找了一条谚语或信息。 首先要对其进行安装:$sudo apt-get install fortune 运行这个命令: $ fortune You have the power to influence all with whom you come in contact.