#!/bin/bash
journalctl_prettyfy () 
{ 
    SIZE=${1:-"100"};
    UNIQ_MIN=${2:-"1"};
    BOOT=${3:-"0"};
    local TMP="/tmp/journalctl_prettyf.tmp";
    _FILE=${4:-"$TMP"};
    CMD="sudo journalctl -b ${BOOT} | tail -n $SIZE";
    CMD_SORTED="${CMD} | cut -d\: -f 4- | sort | uniq -c | sort -n";
    rm -f "$TMP";
    append_cmd "$CMD" "$TMP";
    append_cmd "$CMD_SORTED" "$TMP";
    grep --color=auto -vE " +[0-${UNIQ_MIN}] " $TMP >> "$_FILE";
    if ! $#; then
        cat $_FILE;
    fi;
    rm "$TMP"
}
journalctl_prettyfy "$@"