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Your 'NOP' : is just that a 'NOP' with a meaningless argument of $(./return.sh) so its RC will always be zero, '0'.
[Prompt]./return.sh 2>&1 > /dev/null
[Prompt]echo "$?"
This will suppress...

If you don(t want the output of return.sh
no need of :
: [...]
The null command. Exit status is set to zero.
you can try this way
./return.sh >/dev/null;echo reply is $?

If the string is allways the same structure, then you can do something like this:


string1='a.sh start time is Fri Jan 9 17:17:33 CST 2015';
string1=${string1%* CST 2015}
string1=${string1##*...

This will probably work for about half of a year's input assuming that all lines are in exactly the same format and that the CST is referring to US Central Standard timezone. It won't work when...

You can't have a space between the variable= and the value to be assigned to that variable. The syntax you used, sets st to an empty string and includes it in the environment of the command that...

By not working what do you mean is the data all still on one line?

Are you inserting the contents of temp.txt into the email body, or attaching it to the email, I'm assuming your inserting it into...

OK that explains things.

Files in Windows/DOS are different to unix, they need \r\n on the end. Change your printf commands to put \r infront of any \n eg:

printf "%s %s\r\n" "${File[i]}" ...

In CSV:a,a.txt\r
b,b.txt\r
c,c.txt\r
Tab separated text is also well supported, without worries about ',' and '"'. But CSV is more robust, allowing you to put multi-line chunks into cells inside...

Try:
#!/bin/ksh
arr=(a b c)
for i in "${arr[@]}"
do printf '%s %s\n' "$i" "${i}.txt"
done > file

Why not create two arrays member and file

#!/bin/ksh
member=(a b c)
file=(1.txt 2.txt 3.txt)

i=0
while [ $i -lt ${#member[@]} ]
do
printf "%s %s\n" "${member[i]}" "${file[i]}"
let...