ShellScript

• #!/path to shell - as first command to run the script file
• # - is used for comments
• to make file as executable file. run chmod -x filename in command prompt.
• to check file is executtable or not use ls -l filename
• To run shell script file:
  • Open command prompt
  • enter filename.sh
• To know more about shell script basic and cut, awk, sed and pipe commands in shell scriptread my blog here 'https://medium.com/swlh/shell-script-7c20e7925d1a' and 'https://manasaprema04.medium.com/cut-awk-sed-and-pipe-in-shell-script-1f5621b73801'