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This is just my answer template for "Fun questions" section on sysadmin interview repo: https://github.com/chassing/linux-sysadmin-interview-questions#fun

A careless sysadmin executes the following command: chmod 444 /bin/chmod - what do you do to fix this?

First of all, I'd get the root privileges from that person away. As answer, I have 2 solutions:

1. I'd create a dumb FS (like fat) on a loopback device and copy this file to there, since every file will have executable rights there.
2. There is no problem, system is running without problems, so no need to fix.

I've lost my root password, what can I do?

seqizz

#!/usr/bin/perl -w
#
# Credit goes to: http://stackoverflow.com/questions/1876754/split-up-a-mysqldump-file-with-multiple-databases-by-database
#
# splitmysqldump - split mysqldump file into per-database dump files.

use strict;
use warnings;

my $dbfile;

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#!/usr/bin/env python3

from hashlib import sha256
from pickle import load, dump
from socket import gethostname
from time import time


def current_psi_dict():
    with open('/proc/pressure/cpu', 'r') as psifile:

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/* Adjust style for tab that has sound playing. */
.tab.sound-playing .label:before {
  content: " 🔊  ";
}

/* Show title of unread tabs with red and italic font */
/*
.tab.unread .label {
  color: red !important;
  font-style: italic !important;

seqizz

• Set id:6:initdefault in /etc/inittab file
• Write a script for system to randomly delete a single file without telling you every time you made a typographical error (wrong command).
• chattr +i /etc/passwd or shadow, actually saw this on a server
• add export PROMPT_COMMAND="cd" to profile file
• chmod -x $(which chmod) or chmod -x $(readelf --header /bin/ls | grep interpreter | awk '{print $4}' | sed 's/]//')
• upside-down-ternet
• export EDITOR=$(which rm)

Sources as far as I remember: reddit, suicidelinux, HN

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#TabsToolbar {
        visibility: collapse !important;
}

#sidebar-box[sidebarcommand="treestyletab_piro_sakura_ne_jp-sidebar-action"] #sidebar-header {
        display: none;
}
/*
#sidebar-box, #sidebar-box *{ max-width:5em; min-width:50px;}
#sidebar-box:hover, #sidebar-box:hover *{ max-width:none!important;}

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#!/usr/bin/env python3

# gurkan,2016
# license info: http://www.wtfpl.net/

username = "ilo-username"
password = 'ilo-password'

import hpilo

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cat dafuqtrace.out | grep pam.d
stat("/etc/pam.d", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/etc/pam.d/kde", O_RDONLY)        = 3
open("/etc/pam.d/other", O_RDONLY)      = 3
read(3, "auth       required\tpam_deny.so\n"..., 4096) = 128

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ssh -v -C2qTnN -D 8080 -p22 kullanıcıadı@ipadresi

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[root@localhost]$ hpsum -h
HP Smart Update Manager 7.4.0
For CLI (legacy command) information:
    hpsum  --s [--help | --h]
To start HP SUM in interactive GUI mode:
    hpsum   [--port <#>] [--ssl_port <#>] [--open_firewall] [--overridedb]
To use interactive console mode:
    hpsum <console_command> [--help | --h]
Supported console commands:
        abort