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Old 07-07-2007, 01:41 PM   #1
7stud
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Registered: Feb 2007
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screwed up adding to $PATH--cmds don't work


Hi,

I tried adding to my PATH environment variable in ~/.bash_profile, and I screwed something up, and now no commands, like ls, vi, etc., work anymore. I need to get back into ~/.bash_profile and fix it, but I can't figure out how to open ~/.bash_profile to edit it. I usually edit with vi. I'm on max os 10.4.7.
 
Old 07-07-2007, 01:59 PM   #2
theNbomr
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Try doing what the shell does: look for the executable in a specific ordered list. I suggest you start with this list:

/bin/
/usr/bin/
/usr/local/bin/

Try running whatever program you want by prefixing it with one of these directories:

eg. /bin/vi

If you still don't understand how you messed up your bash startup scripts once you've gotten into them, post them here (use [ C O D E ] tags please).

--- rod.
 
Old 07-07-2007, 02:36 PM   #3
7stud
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Registered: Feb 2007
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Quote:
Originally Posted by theNbomr
Try doing what the shell does: look for the executable in a specific ordered list. I suggest you start with this list:

/bin/
/usr/bin/
/usr/local/bin/

Try running whatever program you want by prefixing it with one of these directories:

eg. /bin/vi

If you still don't understand how you messed up your bash startup scripts once you've gotten into them, post them here (use [ C O D E ] tags please).

--- rod.
Thanks! /usr/bin/vi ~/.bash_profile worked. I mistyped a character in my .bash_profile file, and that is what was causing me the problems.

I have another question: what's the difference between using $PATH and ${PATH}?

Last edited by 7stud; 07-07-2007 at 02:58 PM.
 
Old 07-07-2007, 02:47 PM   #4
theNbomr
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Quote:
I have another question: what's the difference between using $PATH and ${PATH}?
Semantically, nothing. The curly braces are used to disambiguate the name of the variable in certain circumstances, such as when a variable needs to be interpolated and concatenated at the same time:

For instance:
Code:
DIR="/bin/"
# can't write $DIRvi...
echo ${DIR}vi
--- rod

Last edited by theNbomr; 07-07-2007 at 02:48 PM.
 
Old 07-07-2007, 07:14 PM   #5
7stud
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Registered: Feb 2007
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Thanks.
,,,
....
 
  


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