Measure Bash cmd runtime

calc_cmd.sh

#!/bin/bash

your_command="ls -l" # --- UPDATE COMMAND HERE ---
start_time=$(date +%s)
eval $your_command
end_time=$(date +%s)

# Calculate the elapsed time in seconds
elapsed_time=$((end_time - start_time))

# Convert elapsed time to hh:mm:ss format
hours=$((elapsed_time / 3600))
minutes=$(( (elapsed_time % 3600) / 60 ))
seconds=$((elapsed_time % 60))

# Write elapsed time and command to a file
echo "Command: $your_command" >> elapsed_time.log
echo "Elapsed time: $hours:$minutes:$seconds" >> elapsed_time.log