Linux basic commands :<\/p>\n
$ who am I\u00a0\u00a0 –>To see from which user you have logged in<\/p>\n
$ who\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –>To see all who is logged in yet this point of time from which IP<\/p>\n
$ w\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –>More details about user related info<\/p>\n
$ date \u00a0\u00a0\u00a0 –> To display the date of the system<\/p>\n
$ cal\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> To display the current month calendar<\/p>\n
$ time\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> Calculate response time of the activity \/ command<\/p>\n
$ hwclock\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> To see detailed date and time with time zone<\/p>\n
$ ls -l\u00a0\u00a0\u00a0\u00a0\u00a0 –> List files,directories with properties<\/p>\n
$ ls\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> List files and directories<\/p>\n
$ ls \u2013a\u00a0\u00a0\u00a0\u00a0 –> List all hidden files and directories<\/p>\n
$ ls \u2013d\u00a0\u00a0\u00a0\u00a0\u00a0 –> To list only directories<\/p>\n
$ pwd\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> Print working directory<\/p>\n
$ cd <Path of the directory>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> Change directory<\/p>\n
$ clear\u00a0 \u00a0 –> To clear the screen<\/p>\n
$ uptime\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –>To see the server up time, boot time, users and load<\/p>\n
$ uname \u2013a\u00a0\u00a0\u00a0\u00a0 –> To verify Operating system version, kernel version and architecture<\/p>\n
$ touch <File Name>\u00a0\u00a0\u00a0\u00a0 –>Create an empty file \/ Multiple empty files yet a time<\/p>\n
$ touch \u2013am\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> It will change a file time to current time<\/p>\n
$ touch \u2013r file1 \u2013B 30 file2\u00a0 –>it will create two files with 30 seconds time difference<\/p>\n
$ cat \/dev\/null > file\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –>To empty the data file<\/p>\n
$ cat > <File Name> \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –>Create an single file with text<\/p>\n
$ rm \u2013rf <File \/ Directory Name>\u00a0 –> Delete files\/directories forcefully<\/p>\n
$rmdir <directory>\u00a0\u00a0\u00a0 –>Delete directories only<\/p>\n
$ mkdir <Directory Name>\u00a0\u00a0 –>Create an empty directory \/ directories<\/p>\n
$ mkdir \u2013p <directory\/directory\/directory>\u00a0 –>To create parent directories<\/p>\n
$ cat <File Name>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> View content of file<\/p>\n
$ cp <Source path> <Destination path>\u00a0\u00a0 –> Copy the files from one path to another path<\/p>\n
$ cp \u2013Rv <source> <destination>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> copy directories from source to destination<\/p>\n
Options:<\/strong><\/span><\/p>\n -R, -r,\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #copy directories recursively<\/p>\n -v\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #verbose to see progress of copy job<\/p>\n -p\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #preserve<\/p>\n -f\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #forcefully<\/p>\n -I\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #interactive: Ask before overwriting file<\/p>\n $ mv <source> <destination>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> Move files\/directories<\/p>\n $ mv <old name> <new name>\u00a0\u00a0\u00a0 –> Rename the file and directory<\/p>\n $ last\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> Check who logged in and when logged in duration<\/p>\n $ arch\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> To know architecture<\/p>\n $ reboot \/ init 6\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> Restart server<\/p>\n $ poweroff \/ init 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> To shut down the server<\/p>\n $ dmesg\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> Check boot process logs<\/p>\n $ nsloookup <Server Address>\u00a0\u00a0\u00a0 –> check dns resolution<\/p>\n $ dig <server address> \u00a0\u00a0\u00a0\u00a0 –> check dns resolution to debug<\/p>\n $ tree <directory>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> It will show the tree of parent directory<\/p>\n $ stat <file name>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> detailed information about file<\/p>\n $ wc\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> word count, character count and line count<\/p>\n Options:<\/strong><\/span><\/p>\n -l \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #Check line count<\/p>\n -c\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #Character Count<\/p>\n -w\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 #Word Count<\/p>\n Help relate commands:<\/u><\/strong><\/p>\n $ whatis <Command Name>\u00a0 –> It will display single line description about command<\/p>\n $ whereis <Command Name>\u00a0 –> It will provide you path of the command<\/p>\n $ man <command>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> manual page of the command<\/p>\n $ info <command>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> Information about the command<\/p>\n $ <command> –help\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> It will gives a command options and there usage<\/p>\n $ apropos <keyword>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –> To know about the command use<\/p>\n <\/p>\n NOTE:<\/strong> All commands must be small case letters<\/p>\n","protected":false},"excerpt":{"rendered":" Linux basic commands : $ who am I\u00a0\u00a0 –>To see from which user you have logged in $ who\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –>To see all who is logged in yet this point of time from which IP $ w\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –>More details about user related info $ date \u00a0\u00a0\u00a0 –> To display the date of the system $ cal\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[50],"class_list":["post-222","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-linux"],"_links":{"self":[{"href":"http:\/\/www.middlewareprimer.com\/blog\/wp-json\/wp\/v2\/posts\/222","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.middlewareprimer.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.middlewareprimer.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.middlewareprimer.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.middlewareprimer.com\/blog\/wp-json\/wp\/v2\/comments?post=222"}],"version-history":[{"count":6,"href":"http:\/\/www.middlewareprimer.com\/blog\/wp-json\/wp\/v2\/posts\/222\/revisions"}],"predecessor-version":[{"id":228,"href":"http:\/\/www.middlewareprimer.com\/blog\/wp-json\/wp\/v2\/posts\/222\/revisions\/228"}],"wp:attachment":[{"href":"http:\/\/www.middlewareprimer.com\/blog\/wp-json\/wp\/v2\/media?parent=222"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.middlewareprimer.com\/blog\/wp-json\/wp\/v2\/categories?post=222"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.middlewareprimer.com\/blog\/wp-json\/wp\/v2\/tags?post=222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}