#! /bin/zsh
#
# this file:
#   https://dataswamp.org/~incal/conf/.zsh/processes

how-many-processes () {
    local prs=$(/bin/ps --no-header)
    local prsn=$(echo $prs | wc -l)
    echo $(( $prsn - 1 ))
}
alias pss=how-many-processes

monitor-emacs-and-mpv () {
    watch     \
        -n 1  \
        -t    \
        "ps -eo pid,pri,nice,state,%cpu,%mem,tty,time,comm | grep 'COMMAND\|emacs\|mpv'"
}
alias meam=monitor-emacs-and-mpv

monitor-tty () {
    watch -t -n 0.1 "ps -eo tty,pid,comm,state | grep 'pts/$1 '"
}
alias monitor=monitor-tty

get-group () {
    local name=$1
    awk '{print $5}' < /proc/${name}/stat
}

alias pstree='pstree -A -s'

ps-all () {
    local pid=$1
    ps -l -p $pid
}