Linux Commands

Linux Commands

Here are the pocket reference commands :

• https://linuxjourney.com/lesson/monitor-processes-ps-command
• https://linuxjourney.com/lesson/subnetting-cheats                                
• https://www.gnu.org/software/sed/manual/sed.html#cat-_002db

• To remove SINGLE LINE Comment in a file - sed -i '' -e 's|//||g' <input file>

• To remove Blank Lines in between Lines - sed -i '' '/^$/d'  <input file> or AWK would do - awk 'NF' <input file>.

• grep -v "Session:" LoggedinLoadCache_5.log | grep -v "Session"

• List the processes with name streamlink - ps aux | grep streamf1

• Kill the process with the id eg. 26959 - kill -9 26959 

• Kill all streamlink processes in 1 command: - ps aux | grep streamf1 | awk '{print $2}' | xargs kill -9

• dadoor_netstat_function ()

• {    netstat -Watnlv | grep LISTEN | awk '{"ps -o comm= -p " $9 | getline procname;colred="\033[01;31m";colclr="\033[0m"; print colred "proto: " colclr $1 colred " | addr.port: " colclr $4 colred " | pid: " colclr $9 colred " | name: " colclr procname; }' | column -t -s "|"

• } Output > dadoor_netstat_function proto: tcp4 addr.port: 127.0.0.1.9999 pid: 70078 name: /Library