
What is $* and $# in Linux? - Super User
Dec 12, 2014 · What do the following environment variables in Linux mean? What is $* (dollar sign followed by an asterisk)? What is $# (dollar sign next to a hash mark/number sign/octothorpe/pound …
What is the difference between shell, console, and terminal?
As unix/linux systems added better multiprocessing and windowing systems, this terminal concept was abstracted into software. Now you have programs such as Gnome Terminal which launches a …
shell - What does "2>&1" do in command line? - Super User
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. For example: curl ...
shell - What is the origin of the UNIX $ (dollar) prompt? - Super User
The UNIX prompt uses a $ symbol to indicate that your input is expected. I was wondering why this symbol was chosen—if there is a reason. Dollar just seems a little unexpected. A > symbol would...
How can I use a Bash-like shell on Windows? - Super User
I use Linux and a Mac, and I'll be teaching some command line stuff soon. What can I install on Windows to give me a terminal window most similar to a basic Mac/Linux Bash shell? I would like t...
How to end a program in an unix shell? - Super User
4 Normally a unix shell will have the following key mappings control-C => SIGINT (interupt) control-Z => SIGTSTP (terminal stop / suspend) sometimes there is also control-y => delayed stop (not sure how …
PowerShell vs. the Unix Shell - Super User
Dec 18, 2010 · PowerShell is superficially similar to Unix shells. PowerShell has aliases for many of the commands you are used to in Unix, like ls, rm, cp, mv, etc. However, the way that the cmdlets behind …
shell - How to display current path in command prompt in linux's sh ...
I would like to display current path in sh prompt (not bash shell), which currently just shows "#", I tried with introducing this env PS1="$(whoami)@$(hostname):$(pwd)" and set PS1="$(whoami)@$(
shell script - How to execute .sh files on Windows? - Super User
Even so, you will often encounter more Unix-styled programs that have no equivalent under Windows--grep, sed, vi, emacs, etc. Thus, the call to install CygWin (no minimalist)--just to get the shell and …
path - How does Unix search for executable files? - Super User
65 When a file is executed, how does Unix search for it? If there are multiple executable files in PATH with the same name, which one is preferred? Is the current directory included in the search when a …