Frequently Asked Questions About Linux / UNIX » which command http://www.cyberciti.biz/faq Every answer asks a more beautiful question. Fri, 03 Feb 2012 22:38:32 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Bash Shell Find Out If A Command Exists On UNIX / Linux System ($PATH) OR Nothttp://www.cyberciti.biz/faq/unix-linux-shell-find-out-posixcommand-exists-or-not/ http://www.cyberciti.biz/faq/unix-linux-shell-find-out-posixcommand-exists-or-not/#comments Tue, 06 Apr 2010 07:03:30 +0000 Vivek Gite http://www.cyberciti.biz/faq/?p=7043 I want find out if a command exists on UNIX from a bash shell script. If command does not exists, then I would like to display an error message on screen. How do I find out if a command exists on Posix system or not?]]> http://www.cyberciti.biz/faq/unix-linux-shell-find-out-posixcommand-exists-or-not/feed/ 3 Linux / UNIX: Command not found error and how do I get rid of it?http://www.cyberciti.biz/faq/linux-unix-command-not-found-error-and-how-to-get-rid-of-it/ http://www.cyberciti.biz/faq/linux-unix-command-not-found-error-and-how-to-get-rid-of-it/#comments Tue, 17 Jan 2006 18:48:00 +0000 Vivek Gite http://www.cyberciti.biz/faq/faq/linuxunix-command-not-found-error-and-how-to-get-rid-of-it.php http://www.cyberciti.biz/faq/linux-unix-command-not-found-error-and-how-to-get-rid-of-it/feed/ 35