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Shell之rev与tac
source link: https://mryqu.github.io/post/shell%E4%B9%8Brev%E4%B8%8Etac/
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Shell之rev与tac
今天想把一个文件内容反序输出，就找到了rev与tac这两个命令。
- rev是对每一行内容进行反序，行序不变
- tac是对行序反序, 每一行内容不变
mryqulax> cat test.log
whoami
123
mryqulax> rev test.log
imaohw
321
mryqulax> tac test.log
123
whoami
标题：Shell之rev与tac
作者：mryqu
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