Shell Programming and Scripting

Hello,

I am facing a strange problem while writing a script in ksh ....
though the script is too long but whenever i try to change the path to new path , the path is not changed...
like the path is :

?pwd
/osp/linus

?more script
echo "hello"
cd /osp
echo "bye"

?sh script
hello
bye

? pwd
/osp/linus

I tried all possible reasons , I am able to change via using a simple cd command but not via using it in a script........

Pls suggest what can be the possible reasons....

thanks in advance.....

Aparna

Code:

. script

Pls specify what is .script .......

i tried to execute the script by that but is not working.......

Pls advice and elaborate...

Thks again....
Aparna

'script' is the name of your script [no pun] from your original post:

Code:

?more script
echo "hello"
cd /osp
echo "bye"

There's a space between '.' and 'script':

Code:

. script

Some shells may require that "." is in your PATH, so you may need to do

Code:

. ./script

Thanks it worked but I am curiuos to know why it happened ? i mean why i didnt worked with sh and wirked with bot .script and . ./script.....

what is reason for this behaviour...

Thks again
Aparna

The first . means execute in the current shell. The second ./ means execute the binary present in the present working directory.
Sometimes your PATH variable has your present directory preceeded by other directories in which case you dont need the ./
eun echo $PATH and then you can decide whether you want to use a ./ or not.