What languange is the $ command from?

dcraftjr · 05-05-2008, 04:10 PM

I am wondering what programming language the $ command comes from. I have tried looking everywhere on this command but couldnt find any. All i know is that it uses some kind of command to run a custom command on a program.

johnhook · 05-05-2008, 07:18 PM

dcraftjr,

The $ prompt is associated with most if not ALL versions of Unix/Linux. This is a command processor, not really a programming language although you CAN right UNIX shell scripts that can do pretty sophisticated things.

Check out:

http://www.indiana.edu/~uitspubs/b017/

- John

lensman3 · 05-22-2008, 07:35 PM

The $ prompt is associated with most if not all versions of Unix/Linux as johnhook noted. The # prompt is associated with the root or super user of Unix/Linux.

The old "sh" shell of Unix used the $ as I remember, though you could change the prompt by using the PS1, PS2, PS3, and PS4 prompts, aliases and the "set" command. (These prompts usually have to do with shell spawning and keeping track of the spawned shell by using a different prompt). The first shell's used $ and it has stuck over the years.

05-05-2008, 04:10 PM	#1 (permalink)
dcraftjr Registered User Join Date: Nov 2005 Location: New Jersey Posts: 26 OS: win xp	What languange is the $ command from? I am wondering what programming language the $ command comes from. I have tried looking everywhere on this command but couldnt find any. All i know is that it uses some kind of command to run a custom command on a program.

05-05-2008, 07:18 PM	#2 (permalink)
johnhook Tech Hardware Team Join Date: Apr 2008 Posts: 810 OS: MS SBS 2003 SP2	Re: What languange is the $ command from? dcraftjr, The $ prompt is associated with most if not ALL versions of Unix/Linux. This is a command processor, not really a programming language although you CAN right UNIX shell scripts that can do pretty sophisticated things. Check out: http://www.indiana.edu/~uitspubs/b017/ - John __________________

05-22-2008, 07:35 PM	#3 (permalink)
lensman3 Registered User Join Date: Oct 2007 Location: Littleton, Colorado USA Posts: 343 OS: xp 64 sp2 Fedora Core 8 (vmware xp core 8 x32) Minix	Re: What languange is the $ command from? The $ prompt is associated with most if not all versions of Unix/Linux as johnhook noted. The # prompt is associated with the root or super user of Unix/Linux. The old "sh" shell of Unix used the $ as I remember, though you could change the prompt by using the PS1, PS2, PS3, and PS4 prompts, aliases and the "set" command. (These prompts usually have to do with shell spawning and keeping track of the spawned shell by using a different prompt). The first shell's used $ and it has stuck over the years.