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Whether a string is a valid unix command

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# 1  
Old 07-20-2010
Whether a string is a valid unix command
How to find a string which is entered in command promt is a valid unix command or not?.

Thanks in advance

~Saravana
# 2  
Old 07-20-2010
Code:
which command ## shows which command is being executed
man command ## shows everything about the command.

and if the command doesnt exist on that machine it tells you. if you use man
This User Gave Thanks to dazdseg For This Post:
tsaravanan
# 3  
Old 07-20-2010
usually by pressing Enter after you type in the string...

You could also try seeing what the system intends on doing ahead of time by trying whence, which, man, etc....any of these will give non-committal feedback in the form of either a path or a manual and give a fair notion of what might happen.
This User Gave Thanks to curleb For This Post:
tsaravanan
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