Linuxlinux Operating System Features: There is no drive letter in the system. Only files.
directory structure:/etc Storage System configuration file. (Network configuration Firewall ....) Home./zhouyan/yan/root Super Admin home/usr shared file/system root directory Common directory
Disk CommandLS view files or folders under directory-a View all files (containing hidden files)-L displays the details of the file or directory
Combination:Ls-al query all file names ll-a query all file names CD switch directory CD/system root/CD space default switch to current user's root (home) ★★/ROOTCD ~ Current user's root (home)/rootcd: Previous Directory ★★CD-returns the last Access directory PWD displays the current working directory mkdir create directory ★mkdir-pv-p in case the parent directory does not exist, first create the parent directory and then create the subdirectory-V displays the details of the execution touch file name creation file----------- ----------
file OperationsCP Copy file or directory-R loop recursion-a file or directory already exists for a directory that is copied to the replicated directory ★-b. First back up the original file or directory, in the copy (understand) development: publish the project or resource, first back up and then overwrite. MV Move or rename-F Force overwrite RM Delete file or directory-F Force Delete-R loop recursion--If the directory has subdirectories or files. Delete a subdirectory or file, and then delete the parent directory combination: RM-RF Strong turn round Delete ★★★find query Query the file or folder under the specified directory-name query the find specified directory based on the file name or directory name-name ' article Name of the item or directory '---------------------
Document Editor ★VI or VIM edit file when vim modifies a file, some keywords are highlighted. Format: Vim file name Basic mode: General mode: Vim file name, default into general mode copy, delete ... Insert mode Press "A/I/O" to enter insert mode to modify file contents A current cursor after inserting i current cursor insert o next line Insert bottom line mode press ESC to return to normal mode. Press ":" to toggle to the bottom line mode ": Wq" Save and Exit ": q!" does not save exit YY copy when line-- General mode P Paste--General mode DD Delete Cursor line--General mode x Delete cursor character--delete only one--General mode grep command: grep-i haha a/1.txt used to filter/query special characters grep-i keyword file path-I ignore case Inquire
Pipeline |Format: Command 1| Command 2: Command 1 outputs the contents of the output as a combination of command 2 input: Ps-ef|grep process name---------------------
file Browse ★Cat queries the file for all content. For: Querying profiles more paging query (understanding) Less paged query ★★★-m display percent-n display line number/down search? Search up Q exit tail View the content at the end of the file ★★★-f loop query combination: Tail-f log file path---------------------
system CommandsPS View Process mix: Ps-ef Query the details of all processes Ps-ef | grep process name query specified process kill kill process-9 force kill process combination: kill-9 process number (PID) ifconfig Display Network configuration information Ping tests connectivity to the target host---------------------
compression and decompression tar★★★TAR-C compression-X decompression----Show execution details-Z Whether to use gzip compression-F to specify the name of the compressed file combination: TAR-ZCVF compressed file name needs to be compressed files or directory compression ' TAR-ZXVF need to unzip the filename by default decompression to the current archive directory TAR-ZXV F need to unzip the filename-C directory to extract the specified directory
file Permissions chmodCombination: chmod 777 files or directories add read, write, execute permissions to all users ★chmod 775 files or directories current and owning group users add read, write, execute permissions, other groups add read, execute permissions ★chmod 000 files or directories Cancel all permissions on a file or directory (few) network configuration: Mode 1. Modify configuration file Cat/etc/sysconfig/network-scripts/ifcfg-eth0 Restart Network Service: Service network restart
Linux Common commands
