linux运维中的命令梳理(三) 运维linux ---文本操作命令--- sed命令:文本编辑工具 sed是一个很好的文件处理工具,本身是一个管道命令,主要是以行为单位进行处理,可以将数据行进行替换、删除、新增、选取等特定工作,下面先了解一下sed的用法 sed命令行格式为: sed [-nefri] ‘command’ 输入文本 常用选项: -n...
cut-d: -f1,3/etc/passwd 2.sort -n numeric-sort -r reverse -t delimiter -k sort via a key -u unique -f ignore upper case 3.uniq sorttest 12 13 12 12 uniq sorttest result: 12 13 12 -d only print duplicate lines, -D print all duplicate lines groups -c prefix lines by the n...
简介: Linux Command uniq Linux Command uniq 文章目录 Linux Command uniq 1. 简介 2. 参数 3. 示例 1. 重复相邻 2. 重复不相邻 1. 简介 Linux uniq 命令用于检查及删除文本文件中重复出现的行列,一般与 sort 命令结合使用。 uniq 可检查文本文件中重复出现的行列 2. 参数 -c, --count 在每行开头...
[ Readers also liked:Working with pipes on the Linux command line] With -s, --skip-char=N option Just like the field, we can skip characters as well by using the-soption. Please keep in mind that theuniqcommand prints only the first duplicate line and discards other duplicate lines. Th...
Linux Basics Living in a Shell Root and Other Users Virtual Consoles Logoff and Shutdown Choosing a Shell The Command Prompt Wildcards Command History Aliases Redirection Pipelines Processes Stopping a Program Environment Variables Help! Linux Files ...
These advanced options allow you to customize the behavior of the uniq command to suit your specific needs. Conclusion The uniq command is a versatile and valuable tool in a Linux user’s or administrator’s arsenal. Its ability to filter and manipulate text data, remove duplicates, and count...
To open info page for uniq command we can use command below. info uniq To open help page from uniq command we can run command below. uniq --help Linux uniq Command Source Code You can find uniq command source code from the folowing repositories: ...
Tutorial on using uniq, a UNIX and Linux command for reporting or filtering repeated lines in a file. Examples of showing a count of occurrences, showing only repeated lines and ignoring characters and specific fields.The UNIX and Linux uniq command ...
An important aspect that we need to keep in mind is thatuniqworks with adjacent lines. This means we often need to first sort our data beforeuniqcan work on processing the file. Luckily, in Linux, we can use thesortcommand to achieve that. ...
S:进程的状态,有 S=sleeping,R=running,T=stopped or traced,D=interruptible sleep(不可中断的睡眠状态),Z=zombie。%CPU: CPU使用率%MEM: 物理内存的使用TIME:进程占用的总共cpu时间COMMAND:进程的命令 top 运行中可以通过 top 的内部命令对进程的显示方式进行控制。内部命令如下:s – 改变画面更新频率 l –...