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# 1  
Old 03-28-2002
stack problem

Hi,
I'm a complete beginner at all this business so any help is appreciated.

I have a script (not written by me) which I need to modify. My problems is....

tail -1c $file

.... I understand this will return the final character of the $file variable. I need to make it return the first character of the $file variable. I've already tried first, top, front etc. but non seem to work.

And please don't ask what version of unix i'm running - all I do is boot up windows and use a program called Exceed.

Cheers for any help.
mastaCow
# 2  
Old 03-28-2002
Perhaps you might try the head command and not tail ...
# 3  
Old 03-28-2002
I can only get head to return a set number of lines. i.e. head -n1 would return the first line. I need something to return the first character/byte etc. Is there an a -? I can use to make it output only the first character?

Thanks
mastaCow
# 4  
Old 04-02-2002
Quote:
I understand this will return the final character of the $file variable.
Just to be clear, we are talking about returning the first or final character of a file, and does not matter if it is referenced by actual name or the filename is contained in a variable. Returning portions of what is currently held in a variable is very common, but I think not what we want here.

OK, so head -1 myfile gets you the first line. Now pipe that into a command that will cut the first column out. But if the first line is empty, this solution results in null:
Code:
char1=`head -1 myfile | cut -c1`
echo "first character is $char1"

Jimbo
# 5  
Old 04-02-2002
Homework problem???

Obvious homework questions. I have reviewed your posts and all of them show classic homework type questions.

Please read the FAQs on the www.unix.com home page.
 

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