Show your ssh configs in a table format

.show_ssh.sh

#!/bin/bash

# Path to the SSH config file
config_file="$HOME/.ssh/config"

# Check if the SSH config file exists
if [[ ! -f "$config_file" ]]; then
  echo "SSH config file not found at $config_file"
  exit 1
fi

# Function to print an entry with padded fields
print_entry() {
  printf "%-17s | %-17s | %-17s | %-17s\n" "$1" "$2" "$3" "$4"
}

# Initialize variables for the first Host entry
host=""
hostname=""
user=""
forward_agent=""

# Read the file line by line
printf "\n%-17s | %-17s | %-17s | %-17s \n" "Host" "HostName" "User" "ForwardAgent"
echo "-----------------------------------------------------------------------------"
while IFS= read -r line; do
  # Trim leading whitespace
  trimmed_line="$(echo "$line" | sed -e 's/^[ \t]*//')"

  # Check for a Host entry
  if [[ "$trimmed_line" =~ ^Host\ +(.+) ]]; then
    # If it's not the first entry, print the details of the previous entry
    if [[ -n "$host" ]]; then
      print_entry "$host" "${hostname:-___}" "${user:-___}" "${forward_agent:-___}"
    fi
    # Reset variables for the new Host entry
    host="${BASH_REMATCH[1]}"
    hostname="___"
    user="___"
    forward_agent="___"
  # Check for Hostname, User, and ForwardAgent entries
  elif [[ "$trimmed_line" =~ ^HostName\ +(.+) ]]; then
    hostname="${BASH_REMATCH[1]}"
  elif [[ "$trimmed_line" =~ ^User\ +(.+) ]]; then
    user="${BASH_REMATCH[1]}"
  elif [[ "$trimmed_line" =~ ^ForwardAgent\ +(.+) ]]; then
    forward_agent="${BASH_REMATCH[1]}"
  fi
done < "$config_file"

# Print the details of the last entry
if [[ -n "$host" ]]; then
  print_entry "$host" "${hostname:-___}" "${user:-___}" "${forward_agent:-___}"
fi

This is really handy. Thanks!

Fantastic! Thank you.