Calling Function Problem

Shell Programming and Scripting
1

Hi,

I had a scripts which calls two function. One function will call another function, script is working fine but the second function is not calling the first function. Below is the script

#!/usr/bin/ksh
fun1() {
echo $DATETIME >> Test1.ksh
return 0
}
fun2() {
typeset DATETIME=`date +%Y%m%d' '%T`
fun1
return 0
}

When I run the above script in which I'm calling fun1 in fun2. But I'm not able to see any data in Test1.ksh and it is a zero size file. Help me in understanding why the DATETIME was not written to Test1.ksh file.

Thanks,
Raju

2

That script doesn't call either function.

3

Why it will not call either function. I'm I doing any thing wrong in my script.

4

Because you never told it to.

Yes.

fun1() {
echo $DATETIME >> Test1.ksh
return 0
}
fun2() {
typeset DATETIME=`date +%Y%m%d' '%T`
fun1
return 0
}

fun2  # <-- call function fun2

# cat Test1.ksh
20091121 17:55:47
5

You need a line in the script that calls fun2. Add:

fun2
6

Thank you very much. It is working now.