Linux Ops Essentials 150 commands

Online Enquiry and Help commands (1)MansTable of Contents Operations Commands (6)lsTreepwd mkdir rmdirCD File Operations Command (7)Touch CP MV RM LN Findrename file viewing and processing commands (21)Cat  More  Less Head TAC Head Tail CutPasteSort Uniq WCIconv Dos2unixfile diffTreechattrlsattrRev Vimdiff File Packing compression command (3)gzip Tar UnzipInformation Display Commands (12)uname hostnameDmesgUptime file Stat du DFTop Free W DateSearch Files Command (4)Find which Whereis LocateUser Management commands (10) Useradd UserdelpasswdChage UsermodID su sudovisudogroupadd Basic Network Operation commands (10) TelnetSSH SCP wget PingRouteifconfigifup Ifdown netstat deep Network Operations Command (6) route mail Mutt nslookup digwgetcommands for disk space (6)Mount Umount DF duFsckDDcommands for shutting down and viewing system information (7) Shutdown rebootPSTopKill DateInstall and Login commands (3) Shutdown halt reboot system Management related commands (9) Top FreeVmstat Mpstat Iostat SARKillChkconfig Lastsystem security-related commands (13)passwd su sudoUmaskchgrp chmod Chown chattr lsattr PSWhoAmIView System User login Information command (6)W W.H.O.Users Lastlastlog Fingers View Hardware-related commands (6) Ethtool Mii-tool Dmidecode DMESG Lspci Other (14) ChkconfigEcho YumWatch alias UnaliasDate ClearHistoryEject TimeNohup NCXargsAdvanced Linux Command memory for monitoring physical components: Top Freevmstat mpstat iostat sarcpu:top vmstat mpstat iostat SarI/O:vmstat Mpstat iostat SAR process: IPCS IPCRM Load:UptimeThe above command belongs to the martial arts "Nine yin Canon", if mastered well, will be very cow. Turn off the machine/Restart/logoff command shutdown: Shutdown-H now-->shut down immediately (production commonly used) Shhutdown-H +1-1shutdown init after minutes0halt-->Stop the system immediately and require manual power off halt-ppoweroff-->Stop the system immediately and Power cycle off: Reboot (production common) shutdown-R Now (production commonly used) Shhutdown-R +1-1restart init after minutes6Unregister logoutexit (production common) CTL+d-->shortcut keys (production common) process management: (16) BG: Background run FG: Suspend program jobs: Show background programKill,Killall, Pkill: Kill process crontab: Set timingPS: View process pstree: Show process status Tree top: Show Process Nice: Change priority nohup: The user will continue to work after exiting the system pgrep: Finding a process that matches a condition Strace: Tracing the system call of a process ltrace: tracing the situation of a process call library function Vmstat: Reporting virtual Memory statistics dangerous system commands:MV RM DDfdisk Partedlinux Four Musketeers (4each)grep Egrep sed awk

Linux Ops Essentials 150 commands