Linux Utility Commands Collation

0. Basic commands

Linux basic Commands Collation

1. Compression decompression

TAR-ZCVF A.tar.gz a   #把a压缩成a. tar.gztar-zxvf A.t #把a. tar.gz extract into a  

2. Vim Summary

2.1 Vim Replacement

#把word_1用word_2替换, g means replace all, c means to replace each one needs to be confirmed

2.2 VIM Statistics The number of a string

: m,ns/word_1/&/gn       #统计从m行到n行之间word_1的个数, n means just count not replaced:1, $s/word_1/&/gn       # Search the entire document for the number of word_1, and the following equivalent:%s/word_1/&/gn    

Delete a string in 2.3 vim

: m,ng/word_1/d         #从第m行到第n行删除所有的word_1

3. File Search

3.1 locate--Search by file name

locate/bin/zip   

3.2 find--Search through the various properties of the file in a given directory

FIND/USR  "*.png"-size +1m           #查找的目录范围是/usr, with a name ending with. png, larger than 1M (+1m,1m,-1m)"*.png  WC- #统计符合条件的行数"*.png #删除符合条件的         

3.3 Find the name of all files with the string "Hello" under Directory dirs

Find. |   "IBM" #xargs是一条Unix和类Unix操作系统的常用命令. It does this by converting the argument list to small pieces to pass to other commands to avoid the problem of too long a parameter list. Find. | "IBM#只打印出文件名      

4. Sorting

SORT-K2-R            #按第二列 (starting with technology),-R for reverse, from large to small output sort-k1-#按第一列排序,-n sorted by number, by string by default # Statistics satisfies the number of conditions    

5. System Overhead

5.1 df--disk usage

DF     #列出各文件系统的磁盘空间占用情况 (unused) Total five columns: Size used Avail use% mounted  on Df-h #以更易读的方式显示 (press k\m\g for proper conversion) 
        

5.2 du--File Size

DF               #列出本目录下, the size of the directory (the default count unit is k)df-h file name     #以更易读的方式显示所查文件的大小 

5.3 W--cpu Load measurement (simple is said to be the length of the process queue , the last time 1min,5min,15min load measurement)

W

6. The awk command

Cat file_name |Awk‘{Print $}‘#输出第一列 (the default is a space slice)Cat file_name |Awk-f‘:‘‘{print "\ T" $ $}‘#-f specify the cut symbol, output the 3rd columnCat file_name |Awk-f‘:‘‘BEGIN {print "Name,id"} {print $ "," $ $} END {print "end_name,end_id"}‘#BEGIN指定开头输出, end indicates the ending outputCat file_name |Awk-f‘: '  /keyword/{print $  '  # output a row with a keyword keyword the development column awk-f  : ' {print" filename: "filename", linenumber: "NR", Columns: "Nf}  #内置变量FILENAME文件名, nr read record, NF number of columns cat file_name | awk  {count++} END { Print "Count:" Count} " #编程, last output total rows    

7. Encoding Conversion

Iconv-f gbk-t utf-8-c  text.txt-o text.out #-f:from-t:to-c ignore invalid output from output-o output file name

8. File attributes

chmod Property file name  #更改文件属性r: 1 w:2 x:4chown owner file name chgrp Group name file    Name

9. Piping | REDIRECT >

LS-   l   |  grep   "^-"   |   #grep regular match begins with '-', wc-l: Counts the total number of rows that meet the criteria Ls-l | ^-">#把满足结果的定位到file_name1, Note: First clear and reposition ls-l |" ^-#把满足结果的输出到file_name2的后面, note: Do not empty, continue to store on the original basis           

Linux Utility Commands Collation