Difference between ${} and $() in a shell script - Super User
Difference between $ {} and $ () in a shell script Ask Question Asked 10 years, 4 months ago Modified 9 months ago
How do I check which shell I am using? - Ask Ubuntu
Feb 28, 2015 · 688 I read that terminal is nothing but shell, and Unix provides different flavors of shells: Bourne shell (sh) C shell (csh) TC shell (tcsh) Korn shell (ksh) Bourne Again shell …
What is the difference between shell, console, and terminal?
The shell is the program which actually processes commands and returns output. Most shells also manage foreground and background processes, command history and command line editing.
linux - Go back to previous directory in shell - Super User
Is there a way to go back to previous directory we were in using bash,tcsh without using pushd/popd ? I'd like to type something like "back" and got returned to the previous directory I …
windows - Shell Bags Registry Hacks - Super User
Nov 14, 2022 · Windows often decides for itself against the will of the user how a folder should be presented. Despite the various "official" methods to ensure Windows displays …
bash - What does 'source' do? - Super User
Sep 24, 2009 · $ whatis source source: nothing appropriate. $ man source No manual entry for source $ source bash: source: filename argument required source: usage: source filename …
linux - What does <<EOF do? - Super User
Nov 22, 2015 · Here the shell interprets the << operator as an instruction to read input until it finds a line containing the specified delimiter. All the input lines up to the line containing the delimiter …
shell - What does "2>&1" do in command line? - Super User
Jul 10, 2014 · I know that the > sign is used for output redirection in the command line, but I'm having trouble finding something that explains the use of 2>&1 in the command line. …
shell - How do I make rm not give an error if a file doesn't exist ...
Jun 12, 2015 · I'm writing a makefile that will clean up some useless files at the end of the compilation. If a target has already been made, it will of course skip that target and the useless …
How to restart GNOME Shell from command line? - Ask Ubuntu
I would like to implement a keyboard shortcut to restart gnome-shell whenever this one crashes (some bugs aren't currently fixed just yet). For this I would need a command line to restart the …