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Full Discussion: change directory if available
Top Forums Shell Programming and Scripting change directory if available Post 302504801 by icelated on Tuesday 15th of March 2011 01:04:54 PM
Old 03-15-2011
change directory if available
I have a simple shell script that prompts the user to enter a directory to navigate to.
What i want it to do and i don't know how to do this is if the directory is invalid automatically navigate to the home directory.

Code:
echo "enter a directory to navigate to:"
read directory

cd $directory

could i use the eval command to see if its a valid directory and if not go to home directory automatically
cd ~

im not sure how to test to see if the directory is invalid..
 

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LEARN ABOUT OPENSOLARIS

cd

cd(1T)							       Tcl Built-In Commands							    cd(1T)

__________________________________________________________________________________________________________________________________________________

NAME

       cd - Change working directory

SYNOPSIS

       cd ?dirName?
_________________________________________________________________

DESCRIPTION

       Change the current working directory to dirName, or to the home directory (as specified in the HOME environment variable) if dirName is not
       given.  Returns an empty string.  Note that the current working directory is a per-process resource; the cd  command  changes  the  working
       directory for all interpreters and (in a threaded environment) all threads.

EXAMPLES

       Change to the home directory of the user fred:
	      cd ~fred

       Change to the directory lib that is a sibling directory of the current one:
	      cd ../lib

SEE ALSO

       filename(1T), glob(1T), pwd(1T)

KEYWORDS

       working directory

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +--------------------+-----------------+
       |  ATTRIBUTE TYPE    | ATTRIBUTE VALUE |
       +--------------------+-----------------+
       |Availability	    | SUNWTcl	      |
       +--------------------+-----------------+
       |Interface Stability | Uncommitted     |
       +--------------------+-----------------+
NOTES

       Source for Tcl is available on http://opensolaris.org.

Tcl																	    cd(1T)
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