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#!/bin/bash
# A quick command to connect to any of the available servers.
# Read the servers from the file into an array:
mapfile -t SERVERS < servers.txt
# Display the numbered list of server options:
echo "Please select a server:"
for i in "${!SERVERS[@]}"; do
echo "$((i + 1)). ${SERVERS[i]}"
done
# Prompt the user for their selection
read -rp "Select a server by the number ... : " SELECTION
# Validate the selection
if [[ $SELECTION -gt 0 && $SELECTION -le ${#SERVERS[@]} ]]; then
# Note down the selection in a variable:
SELECTED_SERVER=${SERVERS[$((SELECTION - 1))]}
# Ask the username and target port no. on the server::
read -rp "The target port no. ............. : " PORT
read -rp "Your username on the server ..... : " USER
# Run the command:
ssh -p "$PORT" "$USER@$SELECTED_SERVER"
# Exit with success (assuming that the actual data sending went well):
echo "session ended"
exit 0
else
# In case of a wrong server selection, exit with failure.
echo "Invalid selection. Please run the script again."
exit 1
fi