[Linux](EN) Use or pass sudo password in shell script

Process file or result of command in while loop line by line in shell script.

Environment and Prerequisite

• Linux base system
• Bash shell(/bin/bash)

Solution

• Use -S option and |

echo "PASSWORD" | sudo -S apt-get update

• Usage with file

cat << EOF > password.txt
> PASSWORD
> EOF

cat password.txt | sudo -S apt-get update

• Use --stdin option and |

echo "PASSWORD" | sudo --stdin apt-get update

• Usage with file

cat << EOF > password.txt
> PASSWORD
> EOF

cat password.txt | sudo --stdin apt-get update

Reference

• https://www.sudo.ws/man/1.8.2/sudo.man.html
• https://stackoverflow.com/questions/11955298/use-sudo-with-password-as-parameter