Common Linux commands under VPS

01.【cd】 The cd command not only displays the current status, but can also change the current status. The cd in Linux is similar to that in DOS. #cd /home/wwwroot (enter the /home/wwwroot directory) #cd .. (enter the upper directory) #cd – (enter the last directory entered) #cd / (enter the root directory) Introduction to common commands for linux VPS newbies

02. 【tar】 The tar command is commonly used in the packaging backup and decompression process in our VPS. #tar cvf a.tar.gz *.* (package all files in the current directory and compress them into file names a.tar.gz) #tar cvf a.tar.gz /home (package all files in the home folder and compress them into file names a.tar.gz) #tar xvf a.tar.gz (Extract a.tar.gz to the current folder, zxvf can also be used) #tar tvf a.tar.gz (Browse the files in the a.tar.gz compressed package)

03. 【rm】 rm is the delete command in linux. #rm a.tar.gz (delete a.tar.gz, then confirmation will appear, enter y) #rm –r (Delete directories and confirm one by one) #rm –rf (forced deletion, no confirmation)

04.【ls】 ls is equivalent to dir in the DOS command, listing files in the current directory. (Note: dir can also be used in Linux) #ls (list directory files) #ls –l (list files and show details) #ls -l |more (Too many directories are displayed in split screen) Introduction to common commands for linux VPS newbies

05.【mv】 mv is move, but it also has a renaming function. #mv a.tar.gz /home (move a.tar.gz in the current directory to the home directory) #mv a.tar.gz b.tar.gz (rename a.tar.gz to b.tar.gz)

06.【cp】 The full name of cp is copy, which naturally means copying. #cp a.tar.g /home (copy a.tar.gz in the directory to the home directory, you can select multiple times at once, just add the file name after cp) #cp –R (Copy the entire directory, including subdirectories)

07. [Directory permissions]

To solve the problem that the installation program prompts that there is no corresponding file read and write permissions, you need to execute the following commands at the same time. #chmod 777 -R virtual host directory /*permissions*/ #chown www(group):www(username) -R virtual host directory /*owner*/

08. 【wget】 wget http://soft.vpser.net/web/nginx/nginx-0.8.0.tar.gz /*Download the files on the remote server to your own server, even uploading is saved. The server has either 100M or 1000M bandwidth. Downloading a 2-3 MB MT does not take dozens of seconds */ wget -c http://soft.vpser.net/web/nginx/nginx-0.8.0.tar.gz /* Continue to download files that were not downloaded last time */

09. 【ps】 #ps -aux /*ps process status query command*/ #ps -aux | grep nginx /*In all processes, find the process of nginx*/ kill 1234 /*1234 is the process ID, which is the PID in ps -aux*/ killall nginx /*killall directly kills all processes through the name of the program, nginx is the process name*/ The meaning of the ps command output fields: [*]USER, the user name of the process owner. [*]PID, process number, can uniquely identify the process. [*]%CPU, the CPU time occupied by the process since the last refresh and the percentage of the total time. [*]%MEM, the percentage of memory used by the process. [*]VSZ, the virtual memory size used by the process, in K. [*]RSS, the total amount of physical memory occupied by the process, in K. [*]TTY, process-related terminal name. [*]STAT, process status, used (R-running or ready to run; S-sleep state; I-idle; Z-frozen; D-uninterrupted sleep; W-process has no resident pages; T stops or traces.) represented by these letters. [*]START, the time when the process starts running. [*]TIME, the total CPU time used by the process. [*]COMMAND, the command line to be executed. 【Other commands】 #mkdir (create directory) #su (switch user) #pwd (displays the user's current directory) #ftp (connect to FTP) #passwd (change password) #reboot (restart) #restart (*also means restart, for example: /root/lnmp restart)

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