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Old 08-20-2009, 06:43 AM   #16
jschiwal
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Quote:
Originally Posted by ddaemonunics View Post
I think you mind is already clear.
Quite clear ....as in cat /dev/null
Please refrain from this type of behavior..
 
Old 08-20-2009, 07:02 AM   #17
smaj84_1
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Quote:
Originally Posted by jschiwal View Post
Please refrain from this type of behavior..
what?
 
Old 08-20-2009, 08:32 AM   #18
teebones
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Quote:
Originally Posted by smaj84_1 View Post
what?
It's a post for ddaemonunics, not you..
 
Old 08-22-2009, 04:36 AM   #19
smaj84_1
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Quote:
Originally Posted by teebones View Post
It's a post for ddaemonunics, not you..
Thanks
 
Old 08-22-2009, 10:24 AM   #20
w1k0
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Internal commands are built in shell (usually Bash). To see the list of all internal commands use the command:

Code:
help
To ask about particular command -- say cd -- use the command:

Code:
help cd
You can also ask about help command:

Code:
help help
Many internal command have also manual page so you can get more help using the command:

Code:
man cd
(To quit manual page press q key).

***

Other commands are external -- you'll find them in different directories as separate executable files.

To determine in which directory is particular external command -- say ls -- use the command:

Code:
which ls
To know more about that command use the command:

Code:
man ls
(To quit manual page press q key).

To know more about man command use the command:

Code:
man man
***

Some commands are internal as well as external.

Just compare:

Code:
help echo
Code:
man echo
Code:
which echo
Code:
/usr/bin/echo --help
 
  


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