System Design | Implementation Rule Book | CheatSheet

netstat -tonp | grep CLOSE_WAIT   //CLOSE_WAIT means your program is still running, and hasn't closed the socket  netstat -p  // connect...

Redirect stderror to output $ cat foo.txt > output.txt 2>&1  // 2 stderror, &1 std output cat nopx.txt > outputx.txt 2>...

 #How to find process id of a running program on a given port sudo lsof   -i:8080 sudo lsof   -i:443

Secure shell:  Connect Remote server using SSH protocol -check existing key :ls -al ~/.ssh // It shows existing public and private key pair...

Forward Search ./ – search for a pattern which will take you to the next occurrence. n – for next match in forward N – for previo...

Here we are going to talk on Bash programming whch is quite powerful when It comes to automat in g a    process in unix environment. Here ...

Process using port  lsof -i:80 File operation Insert new line: esc i enter Delete letter: e...