bash aliases for SLURM: "tailjob <jobid>" or just "tailtop" for most recent job

tailtop

# tails output of any SLURM job that is listed in the queue. 
# if job is pending, tailjob will wait until the output file exists
# usage: tailjob <job_id>
tailjob() {
    local job_id=$1
    if [[ -n "$job_id" ]]; then
        local stdout_file=$(scontrol show job "$job_id" | awk -F= '/StdOut=/{print $2}')
        echo "Running tail -F $stdout_file"
        tail -F "$stdout_file"
    else
        echo "No job ID provided."
    fi
}

# tails the output of your most recent SLURM job in the queue (i.e. top of your squeue -u list)
# usage: just "tailtop" with no arguments
tailtop() {
    local job_id=$(squeue -u "$USER" --format="%A %i" --noheader | sort -k2 -n | awk 'END{print $1}')
    tailjob "$job_id"
}