prompt

Missing RHEL Prompt on Bash

February 20, 2023

Here’s how to restore or set the Bash prompt on RHEL systems.

echo "PS1='\u@\h \w]\$'" >> ~/.bashrc
source ~/.bashrc

Linux prompt display current directory only

February 11, 2022

Here’s the command to display only the current directory.

export PROMPT_DIRTRIM=1

Place the command in your ~/.bashrc to make it permanent.

Removing sudo password is typically not a good practice. If you’re a seasoned system administrator, or you’re the only one using your own desktop, being prompted for a sudo password can get really annoying. Here’s how to stop getting prompted every time you run sudo.

Run visudo.

sudo visudo

Edit the sudo line and set to below.

%sudo ALL=(ALL) NOPASSWD: ALL

Save file.

GitBash .bashrc

April 1, 2020

Here’s how to find your GitBash .bashrc.

# cd takes you to gitbash home
cd 
# edit .bashrc
vim ~/.bashrc

You can add aliases, change prompt styles, etc.

export PS1="\w: $ "
alias gcloud="gcloud.cmd"
alias gsutil="gsutil.cmd"
alias code="cd ~/Code"
cd Code

Disable Host Key Checking

February 9, 2020

How to suppress typing “yes” when prompted by ssh.

#!/bin/bash
ssh-keygen -f "/home/user/.ssh/known_hosts" -R "yourdomain.com" 
ssh -o "StrictHostKeyChecking=no" -i "keys/key.pem" ubuntu@domain.com

First remove old keys in the know_hosts file.
Use “StrictHostKeyChecking” to suppress prompt.