03 2023 档案
摘要:1. 线上查询及帮助 man help 2. 文件和目录操作的命令 ls cd find mkdir mv pwd rename rm rmdir touch tree basename dirname chattr lsattr file md5sum 3. 查看文件内容的命令 cat tac m
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摘要:refer to:https://blog.csdn.net/m0_65638010/article/details/122095252 一般是文本模式匹配 $ sed '/number 3/c\ > This is a changed line of text.' data.txt This is
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