installation management command

Article Title: LinuxShell Command Interpreter: permission management chmod. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Chmod is used to change the access permissions of files or directories. You can use it to control acce

Compare with Windows to introduce Basic Linux operation methods and file management! (in pure command-line mode, why do you want to emphasize the command line?) Because at the end of the second I explained that almost all operations are done on the command line .　　　　Why do you want to compare it with Windows? because

than one.Operation Result:[Email protected] ~]# usermod-g user5 aming[[email protected] ~]# ID aminguid=1000 (aming) gid=1000 (aming) group =1000 (aming), 1007 (USER5)[Email protected] ~]# usermod-g grp2,user5 aming[[email protected] ~]# ID aminguid=1000 (aming) gid=1000 (aming) group =1000 (aming), 1005 (GRP2), 1007 (USER5)[Email protected] ~]# usermod-g grp2,user5 amingUsermod: "Grp2,user5" group does not exist[Email protected] ~]# usermod-g grp2 aming[[email protected] ~]# ID aminguid=1000 (

from the first line, viewing the file, showing the last 10 rows by default-N shows how many rows-F Dynamic Display data (not closed) often used to view logs[Email protected] tmp]# tail-f/var/log/messages[Email protected] ~]# service network restartSee who modified the /etc/resolv.conf the DNS server address in the . To copy a file:CpRole: Copying filesSyntax:CP source File Destination file[Email protected] ~]# cp/etc/passwd/tmp/[Email protected] ~]# LS/TMP/PASSWD/tmp/passwdCopy directory:[Email

File and Directory ManagementFile management is the creation, deletion, query, movement of files or directories, MKDIR/RM/MVFile query is the focus, using Find to query; Find's parameters are rich and very powerful;Viewing the contents of a file is a big topic, the processing of text has too many tools for us to use, in this chapter just point to stop, there will be a special chapter on the text processing tools;Sometimes, you need to create an alias

name in sleep. Flags task flag By default, only important PID, USER, PR, NI, VIRT, RES, SHR, S, % CPU, % MEM, TIME +, and COMMAND columns are displayed. You can use the internal f command we mentioned above to adjust the list options. The following describes two common top options, -B: execute the top command in batches. Generally, the output results of batche

Nmcli network management command line tool Basics Introduction In this tutorial, we will discuss the network management command line tool (NetworkManager command line tool) in CentOS/RHEL 7, also known as nmcli. Users who use ifconfig should avoid using ifconfig in CentOS 7.

Webmaster# Userdel Webmaster2. Delete User Newuser1 and delete their home directory# userdel-r Newuser14) passwd Modify user password. Format: passwd [option] login can use the option:-L LOCK the password, that is, disable the account. -u password to unlock. -D make the account no password. -F forces the user to modify the password the next time they log on. If the default user name, the password for the current user is modified. User Management Tool