Добавление новых оскорблений sudo

Можно добавить новые оскорбления только путем замены существующих оскорблений равной или большей длины.

Из второго ответа в Вашей ссылке эти фразы:

ins_2001.h (2 001 оскорбление Космической одиссеи):

/*
 * HAL insults (paraphrased) from 2001.
 */

"Just what do you think you're doing Dave?",
"It can only be attributed to human error.",

Находят файл

$ grepall "Just what do you think you're doing Dave?"
Binary file /usr/lib/sudo/sudoers.so matches

хорошо, мы теперь знаем имя файла. Это было легкой частью.

Резервное копирование файл

Сначала делает резервное копирование (потому что мы всегда не забываем делать то право?):

$ sudo cp -a /usr/lib/sudo/sudoers{.so,.so.bak}

$ ll /usr/lib/sudo/sudoers{.so,.so.bak}
-rw-r--r-- 1 root root 316768 Oct 11 06:01 /usr/lib/sudo/sudoers.so
-rw-r--r-- 1 root root 316768 Oct 11 06:01 /usr/lib/sudo/sudoers.so.bak

Заставляют сценарий

Затем сделать наш сценарий названным sudoinsults:

#!/bin/bash

# NAME: sudoinsult
# PATH: $HOME/askubuntu/
# DESC: For: https://askubuntu.com/questions/1188779/adding-new-sudo-insults
# DATE: November 14, 2019.

# NOTE: Change sudo insults to personal favorites

# Build array of insults from disk
IFS= 
 Создают файл данных 
 
, Надо надеяться, никакая потребность объяснить, как создать текстовый файл (подсказка: gedit) 
 
$ cat sudoinsult.txt

Just what do you think you're doing Dave?
Just what do you think you're doing Rick?
It can only be attributed to human error.
It can only be attributed to the beer.
 
 Запущенный скрипт и результаты проверки 
 
$ sudo ./sudoinsult

Replacing: 'Just what do you think you're doing Dave?'
     With: 'Just what do you think you're doing Rick?'
Replacing: 'It can only be attributed to human error.'
     With: 'It can only be attributed to the beer.'
2 Insults replaced.

$ ll /usr/lib/sudo/sudoers{.so,.so.bak}

-rw-r--r-- 1 root root 316768 Nov 14 17:43 /usr/lib/sudo/sudoers.so
-rw-r--r-- 1 root root 316768 Oct 11 06:01 /usr/lib/sudo/sudoers.so.bak

$ grep "Just what do you think you're doing Rick?" /usr/lib/sudo/sudoers.so

Binary file /usr/lib/sudo/sudoers.so matches

$ grep "It can only be attributed to the beer." /usr/lib/sudo/sudoers.so

Binary file /usr/lib/sudo/sudoers.so matches
\n' Arr=( $(cat sudoinsult.txt) )

# Initialize variables
File="/usr/lib/sudo/sudoers.so"
upper=0
Spaces="                                                                     "
Spaces="$Spaces""                                                            "

[[ ${#Arr[@]} -gt 0 ]] && upper=$(( ${#Arr[@]} - 1 ))
[[ $upper -gt 0 ]] && for (( i=0; i<upper; i=i+2 )) ; do
    Search="${Arr[i]}"      # Move array indices to named variables
    Replace="${Arr[i+1]}"   #  for a simpler life.

    printf "Replacing: '%s'\n     With: '%s'\n" "$Search" "$Replace"
    if [[ "${#Search}" -lt "${#Replace}" ]] ; then
        echo "Replacement can't be longer than original"
        continue
    elif [[ "${#Search}" -lt 8 ]] ; then
        echo "Original insult cannot be less than 8 characters"
        continue
    elif [[ "${#Search}" -gt "${#Spaces}" ]] ; then
        echo "Original insult cannot be longer than ${#Spaces} characters"
        continue
    elif [[ "${#Replace}" -lt 1 ]] ; then
        echo "Replacement insult cannot be less than 1 character"
        continue
    elif ! grep "$Search" "$File" >/dev/null ; then
        echo "Search insult not found in $File"
        continue
    fi

    # Pad replacement with spaces as needed.
    ReplaceS="$Replace${Spaces:0:$((${#Search} - ${#Replace}))}"
    [[ "${#ReplaceS}" -ne "${#Search}" ]] && \
        { echo Internal error ReplaceS different length than Search; exit; }

# Looks wrong: https://unix.stackexchange.com/a/354493/200094
#y="${y:0:40}${forty:0:$((40 - ${#y}))}"
#echo "'${y}'"
    sed -i "s/$Search/$ReplaceS/" "$File"
    (( InsultCount++ ))

done

if [[ $upper -gt 0 ]] ; then
    echo "$InsultCount Insults replaced."
else
    echo "Insult file (sudoinsult.txt) does not exist or only has one line." >2
fi

Создают файл данных

, Надо надеяться, никакая потребность объяснить, как создать текстовый файл (подсказка: gedit)

$ cat sudoinsult.txt

Just what do you think you're doing Dave?
Just what do you think you're doing Rick?
It can only be attributed to human error.
It can only be attributed to the beer.

Запущенный скрипт и результаты проверки

$ sudo ./sudoinsult

Replacing: 'Just what do you think you're doing Dave?'
     With: 'Just what do you think you're doing Rick?'
Replacing: 'It can only be attributed to human error.'
     With: 'It can only be attributed to the beer.'
2 Insults replaced.

$ ll /usr/lib/sudo/sudoers{.so,.so.bak}

-rw-r--r-- 1 root root 316768 Nov 14 17:43 /usr/lib/sudo/sudoers.so
-rw-r--r-- 1 root root 316768 Oct 11 06:01 /usr/lib/sudo/sudoers.so.bak

$ grep "Just what do you think you're doing Rick?" /usr/lib/sudo/sudoers.so

Binary file /usr/lib/sudo/sudoers.so matches

$ grep "It can only be attributed to the beer." /usr/lib/sudo/sudoers.so

Binary file /usr/lib/sudo/sudoers.so matches