To run a command as administrator (user "root"), use "sudo <command>".
See "man sudo_root" for details.

mmdarden@VMarcus:~$ man firefox
mmdarden@VMarcus:~$ firefox --help

(process:2054): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed
Usage: firefox [ options ... ] [URL]
       where options include:

X11 options
  --display=DISPLAY  X display to use
  --sync             Make X calls synchronous
  --g-fatal-warnings Make all warnings fatal

Firefox options
  -h or --help       Print this message.
  -v or --version    Print Firefox version.
  -P <profile>       Start with <profile>.
  --profile <path>   Start with profile at <path>.
  --migration        Start with migration wizard.
  --ProfileManager   Start with ProfileManager.
  --no-remote        Do not accept or send remote commands; implies --new-instance.
  --new-instance     Open new instance, not a new window in running instance.
  --UILocale <locale> Start with <locale> resources as UI Locale.
  --safe-mode        Disables extensions and themes for this session.
  --jsconsole        Open the Browser Console.
  --jsdebugger       Open the Browser Toolbox.
  --start-debugger-server [port|path] Start the debugger server on a TCP port or Unix domain socket path.  Defaults to TCP port 6000.
  --browser          Open a browser window.
  --new-window <url> Open <url> in a new window.
  --new-tab <url>    Open <url> in a new tab.
  --private-window <url> Open <url> in a new private window.
  --preferences      Open Preferences dialog.
  --search <term>    Search <term> with your default search engine.
  --recording <file> Record drawing for a given URL.
  --recording-output <file> Specify destination file for a drawing recording.
  --setDefaultBrowser Set this app as the default browser.

      -g or --debug          Start within debugger
      -d or --debugger       Specify debugger to start with (eg, gdb or valgrind)
      -a or --debugger-args  Specify arguments for debugger
mmdarden@VMarcus:~$ which firefox
mmdarden@VMarcus:~$ which firefox
/usr/bin/firefox
mmdarden@VMarcus:~$ ls -l /usr/bin/firefox 
lrwxrwxrwx 1 root root 25 Jan 14 21:42 /usr/bin/firefox -> ../lib/firefox/firefox.sh
mmdarden@VMarcus:~$ file !$
file /usr/bin/firefox
/usr/bin/firefox: symbolic link to ../lib/firefox/firefox.sh
mmdarden@VMarcus:~$ vi foo.sh
mmdarden@VMarcus:~$ file !$
file foo.sh
foo.sh: a /usr/bin/env bash script, ASCII text executable
mmdarden@VMarcus:~$ ls
Desktop    Downloads         foo.sh  Pictures  Templates
Documents  examples.desktop  Music   Public    Videos
mmdarden@VMarcus:~$ ls Pictures/
mmdarden@VMarcus:~$ file /usr/lib/firefox/firefox.sh 
/usr/lib/firefox/firefox.sh: POSIX shell script, ASCII text executable
mmdarden@VMarcus:~$ less -N !$
less -N /usr/lib/firefox/firefox.sh
mmdarden@VMarcus:~$ file /usr/lib/firefox/firefox
/usr/lib/firefox/firefox: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32, BuildID[sha1]=e1b6280f5e67f07da16165c6de5e24a133d2f43a, stripped
mmdarden@VMarcus:~$ /usr/lib/firefox/firefox

(process:2116): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed








Cc
^C
mmdarden@VMarcus:~$ /usr/lib/firefox/firefox &
[1] 2171
mmdarden@VMarcus:~$ 
(process:2171): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed

mmdarden@VMarcus:~$ 
mmdarden@VMarcus:~$ 
mmdarden@VMarcus:~$ 
mmdarden@VMarcus:~$ 
mmdarden@VMarcus:~$ 
mmdarden@VMarcus:~$ jobs
[1]+  Running                 /usr/lib/firefox/firefox &
mmdarden@VMarcus:~$ 
mmdarden@VMarcus:~$ jobs
[1]+  Running                 /usr/lib/firefox/firefox &
mmdarden@VMarcus:~$ kill %1
mmdarden@VMarcus:~$ 
[1]+  Terminated              /usr/lib/firefox/firefox
mmdarden@VMarcus:~$ sleep 5m
^Z
[1]+  Stopped                 sleep 5m
mmdarden@VMarcus:~$ sleep 10m &
[2] 2232
mmdarden@VMarcus:~$ jobs
[1]+  Stopped                 sleep 5m
[2]-  Running                 sleep 10m &
mmdarden@VMarcus:~$ fg
sleep 5m
^Z
[1]+  Stopped                 sleep 5m
mmdarden@VMarcus:~$ bg
[1]+ sleep 5m &
mmdarden@VMarcus:~$ jobs
[1]-  Running                 sleep 5m &
[2]+  Running                 sleep 10m &
mmdarden@VMarcus:~$ ls Desktop/
firefox.desktop
mmdarden@VMarcus:~$ file Desktop/firefox.desktop 
Desktop/firefox.desktop: UTF-8 Unicode text
mmdarden@VMarcus:~$ less !$
less Desktop/firefox.desktop
[1]-  Done                    sleep 5m
mmdarden@VMarcus:~$ vi foo.sh 
mmdarden@VMarcus:~$ ls -l foo.sh 
-rw-rw-r-- 1 mmdarden mmdarden 30 Jan 15 12:00 foo.sh
mmdarden@VMarcus:~$ ./foo.sh
bash: ./foo.sh: Permission denied
mmdarden@VMarcus:~$ chmod u+x foo.sh 
mmdarden@VMarcus:~$ !fil
file Desktop/firefox.desktop 
Desktop/firefox.desktop: UTF-8 Unicode text
mmdarden@VMarcus:~$ ./foo.sh 

[2]+  Done                    sleep 10m
mmdarden@VMarcus:~$ ls -l foo.sh 
-rwxrw-r-- 1 mmdarden mmdarden 30 Jan 15 12:00 foo.sh
mmdarden@VMarcus:~$