Linux commands: Difference between revisions

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== file operation ==
== file operation ==
find a file
* find ({{Linux}}) ex: {{kbd | key= find / -name ''filename''}} Find the file which naming filename Under the path / (root folder) <ref> [http://www.codecoffee.com/tipsforlinux/articles/21.html Tips For Linux - How to find files in Linux using 'find']</ref>
* dir ({{Win}}) ex: {{kbd | key= dir /s ''filename''}} <ref>[http://www.computerhope.com/issues/ch000309.htm How to find a file in MS-DOS.]</ref><ref>/S          顯示指定目錄及所有子目錄中的檔案。  (引用自 dir /? 命令說明)</ref> {{exclaim}} I have no idea to specify the file path to find the file.
copy old directory to new directory  
copy old directory to new directory  
* {{kbd | key=cp -a ''old_dir new_dir/''}} ({{Linux}})
* {{kbd | key=cp -a ''old_dir new_dir/''}} ({{Linux}})
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* -h, --human-readable; with -l, print sizes in human readable format (e.g., 1K 234M 2G) Quoted from linux {{kbd | key=man ls}}</ref>  
* -h, --human-readable; with -l, print sizes in human readable format (e.g., 1K 234M 2G) Quoted from linux {{kbd | key=man ls}}</ref>  
* dir ({{Win}}) ex: {{kbd | key= dir/s/b}}
* dir ({{Win}}) ex: {{kbd | key= dir/s/b}}
find a file
* find ({{Linux}}) ex: {{kbd | key= find / -name ''filename''}} Find the file which naming filename Under the path / (root folder) <ref> [http://www.codecoffee.com/tipsforlinux/articles/21.html Tips For Linux - How to find files in Linux using 'find']</ref>
* dir ({{Win}}) ex: {{kbd | key= dir /s ''filename''}} <ref>[http://www.computerhope.com/issues/ch000309.htm How to find a file in MS-DOS.]</ref><ref>/S          顯示指定目錄及所有子目錄中的檔案。  (引用自 dir /? 命令說明)</ref> {{exclaim}} I have no idea to specify the file path to find the file.


show the current directory
show the current directory

Revision as of 19:03, 19 February 2013

(1) alternative Linux commands to complete the same task, (2) The equivalent or similar commands between Windows and Linux system.

Owl icon.jpg help for command: Type command --help or man command (Linux Os linux.png )

text file manipulation

display the first lines of text file

  • head [options] filename (OS: Linux Os linux.png )
  • vi [options] filename (and press gg) (Linux Os linux.png )
  • vim [options] filename (and press gg) (Linux Os linux.png ); Open file and press gg for gVim (Win Os windows.png )

display the last few lines of text file

  • tail [options] filename (Linux Os linux.png )
  • vi [options] filename (and press G) (Linux Os linux.png )
  • vim [options] filename (and press G) (Linux Os linux.png ); Open file and press G for gVim (Win Os windows.png )
  • Tail for Win32 GUI interface (Win Os windows.png ) Icon_exclaim.gif not support Unicode file for v.4.2.6

Search text in file

  • (1)vim [options] filename (2)press /keyword (Linux Os linux.png )
  • grep: grep keyword file_name (Linux Os linux.png )

Search text in files

file operation

find a file

  • find (Linux Os linux.png ) ex: find / -name filename Find the file which naming filename Under the path / (root folder) [1]
  • dir (Win Os windows.png ) ex: dir /s filename [2][3] Icon_exclaim.gif I have no idea to specify the file path to find the file.

copy old directory to new directory

  • cp -a old_dir new_dir/ (Linux Os linux.png )
  • copy /Y old_dir new_dir/ (Win Os windows.png )[4]
  • make new directory & copy all old files to new directory
    • mkdir new_dir
    • cp old_dir/* new_dir

download file from remote server

  • FTP
  • wget: wget http://path.to/file
  • SVN update su - www -c "svn up http://remote.svn.server/path/ /local/path/ --username=your_account --password=xxx"
  • more on File transfer methods


delete files or directory

  • rm -rf /Name_of_directory (Linux Os linux.png )[5]
  • del Name_of_directory (Win Os windows.png )
    • After executed del Name_of_directory but the empty directory directory_name will be left.
    • Command delete is not available in Win XP

rename (move) files or directory

  • mv old_folder_name new_folder_name (Linux Os linux.png )[6][7]
  • rename old_folder_name new_folder_name (Win Os windows.png )[8]

list directory or files / list directory contents

  • ls (Linux Os linux.png ) ex: ls -lh List detailed information of files [9] [10]
  • dir (Win Os windows.png ) ex: dir/s/b

show the current directory

  • pwd(Linux Os linux.png )
  • echo %cd%(Win Os windows.png ) [11]

network

show ip

  • ifconfig (Linux Os linux.png )[12][13]
  • ipconfig/all (Win Os windows.png )

ping

  • ping domain_or_ip (Linux Os linux.png )
  • ping domain_or_ip -t (Win Os windows.png )

whois: search the information of domain (related: Domain Name Register)

apache operation

check apache servie is running or not

  • service --status-all | grep -i httpd (Linux Os linux.png [14][15])
  • netstat -npl | grep httpd for Linux Os linux.png [16]
  • netstat -an | find /i "listening" (Win Os windows.png ) find the local open ports & find local address TCP 0.0.0.0:80 is listening[17]
  • more on connection test...

check which mpm (multi processing module) apache is running

  • httpd -l (Linux Os linux.png & Win Os windows.png ) ex: Linux Os linux.png /usr/local/httpd/bin/httpd -l or Win Os windows.png x:\apache\bin>httpd -l where x:\apache is the installation folder of apache [18]


mysql operation

import mysql sql dump file

  • import *.sql file: mysql -u username -p -h localhost DATA-BASE-NAME < data.sql[19]
  • import *.zip file: 7za x -so data.zip | mysql -u username -p -h localhost DATA-BASE-NAME[20][21]

system operation

show current time

  • date (Linux Os linux.png ) output: Thu Oct 25 15:05:10 CST 2012 [22]
  • date/t (Win Os windows.png )
output:
OS in English: Thu 05/03/2012
OS in Chinese: 2012/05/03 星期四

specify the location where Linux or MS-DOS looks when using a command

  • echo $PATH (Linux Os linux.png )[23]
  • echo %PATH% (Win Os windows.png )[24]

reboot the system/server

  • reboot (Linux Os linux.png )[25]
  • shutdown -r (Win Os windows.png )[26]

OS version

  • lsb_release -a (Linux Os linux.png )[27]
  • ver (Win Os windows.png )[28]

Search text of command output

  • linux command | grep string (Linux Os linux.png ) ex: keyin yum list installed | grep tar to search the installed package naming tar.[29]
  • Windows command | find "string" (Win Os windows.png ) ex: netstat -a | find "3306" (note: enclose string in double quotation marks)[30]

help for command

view the documentation for this command

  • command --help or man command (Linux Os linux.png )
  • command /? (Win Os windows.png )

emergency exit

  • ctrl+c or ctrl+break (Linux Os linux.png & Win Os windows.png )
  • Pause/Break (Linux Os linux.png ) ex: I pressed the key to leave from the warning message "Vim: Warning: Output is not to a terminal".

references

  1. Tips For Linux - How to find files in Linux using 'find'
  2. How to find a file in MS-DOS.
  3. /S 顯示指定目錄及所有子目錄中的檔案。 (引用自 dir /? 命令說明)
  4. /Y 不顯示覆寫現存目的檔案的確認提示。 (引用自 copy /? 命令說明)
  5. [OPTION]
    • -r remove directories and their contents recursively;
    • -f ignore nonexistent files, never prompt
    (above content cited from linux documentation: rm --help)
  6. Linux Rename Files, Folders or Directories
  7. linux alternative to dos command ren - Ubuntu Forums
  8. MS-DOS ren and rename command help
  9. 鳥哥的 Linux 私房菜 -- Linux 的檔案權限與目錄配置
  10. [OPTION]
    • -l use a long listing format
    • -h, --human-readable; with -l, print sizes in human readable format (e.g., 1K 234M 2G) Quoted from linux man ls
  11. Windows equivilent to UNIX pwd - Stack Overflow
  12. 鳥哥的 Linux 私房菜 -- Linux 常用網路指令介紹
  13. bash: ifconfig: command not found 無法使用ifconfig指令? 先加上 su -l指令
  14. Red Hat / CentOS: Check / List Running Services
  15. -i means ignore caseHow to use the grep command, by The Linux Information Project (LINFO)
  16. Linux / UNIX Find Out What Program / Service is Listening on a Specific TCP Port
  17. Netstat
  18. Check which mpm (multi processing module) apache is running | Binary Tides
  19. Import MySQL Dumpfile, SQL Datafile Into My Database
  20. database - Importing zipped files in Mysql using command line - Stack Overflow
  21. Install 7Zip on CentOS 5.5
  22. 鳥哥的 Linux 私房菜 -- NTP 時間伺服器
  23. 鳥哥的 Linux 私房菜 -- 檔案與目錄管理 -- 關於執行檔路徑的變數: $PATH
  24. How to setup my system path
  25. reboot - Linux Command - Unix Command
  26. Windows原來也有內建好用的關機軟體(Shutdown.exe) | ㊣軟體玩家
  27. The Will Will Web | 如何查詢 Linux 的種類與版本 ( Linux Standard Base )
  28. Find windows OS version from command line
  29. Unix/Linux grep command examples | grep command in Unix and Linux | grep examples | alvinalexander.com
  30. Microsoft Windows XP - Find

further reading