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Problem with export command

 
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# 1  
Old 03-24-2010
Problem with export command
hello all,
I know this is a silly question but i have no answer.


I have a shell script temp.ksh

Code:
export value="mynh"
echo $value

but when i execute the temp.ksh "mynh" is printed but
when i give echo $value in the shell after the program is executed, nothing is printed.

Please explain why it happens.
I want to make the variable value as global.
# 2  
Old 03-24-2010
Hi anijan,

source your temp.ksh:
Code:
stefan@srvap05:~$ . ./temp.ksh
mynh
stefan@srvap05:~$ echo $value
mynh

or
Code:
stefan@srvap05:~$ source ./temp.ksh
mynh
stefan@srvap05:~$ echo $value
mynh

# 3  
Old 03-24-2010
sorry i do not undersatnd wat was my mistake..
# 4  
Old 03-24-2010
The difference is this: if you run a script, then any values defined there are visible only to that process, and maybe their subprocesses if you export them. If, on the other hand, you source them (using either 'source' or the more portable '.' syntax) the file will be executed in the current shells context, thus making the exported variables available in the current shell.
 
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