Need help > Horizontal line to vertical Shell script

iLL_NiNo · 11-18-2009, 02:19 PM

Hey, I need to do the following:

A program that makes a sentence, echoed in vertical. For eg:

input:
apple
output:
a
p
p
l
e

I need it for a whole sentence not only one word. Please help me out.

ammorais · 11-18-2009, 02:21 PM

This sounds like homework.
Why don't you tell us what you've tried and we go from there.

iLL_NiNo · 11-18-2009, 02:25 PM

Yes, it is homework. I made the input only, but dont know how to continue, didnt find anything with google.

#!/bin/sh

if [ $# -ne 1 ]
then
echo "Write a sentence: ";
read x;
fi

if [ $# -eq 1 ]
then
x=$1;
fi

h=length($x);

That's the code, only the input.

ammorais · 11-18-2009, 02:39 PM

Your code is incomplete, and has something wrong.

You can find the lenght of a string by writing:

Code:

LENGHT="${#VAR}";

The further information can be found in Advanced Bash Scripting guide in section Manipulating strings.

pixellany · 11-18-2009, 02:42 PM

You can use SED to replace every character with itself + a newline. Go here for a really good tutorial on SED:

http://www.grymoire.com/Unix/Sed.html

You'll be using the "s" (substitute) command and a "backreference" to replace the character with itself.

ammorais · 11-18-2009, 03:06 PM

Quote:

Originally Posted by pixellany

You can use SED to replace every character with itself + a newline. Go here for a really good tutorial on SED:

http://www.grymoire.com/Unix/Sed.html

You'll be using the "s" (substitute) command and a "backreference" to replace the character with itself.

iLL_NiNo, opting for this later approach will certainly impress your teacher.

iLL_NiNo · 11-18-2009, 03:39 PM

Solved. THANX!

#!/bin/sh

if [ $# -eq 0 ]
then
echo "Kerem irja be a szoveget: ";
read szoveg;
fi

if [ $# -ne 0 ]
then
szoveg=$1;
fi

h="${#szoveg}";

for i in `seq 0 $h`
do
echo ${szoveg:$i:1};
done

#!/usr/bin/which · 11-20-2009, 04:27 AM

Code:

$ echo apple | grep -o .
a
p
p
l
e

pixellany · 11-20-2009, 07:19 AM

Quote:

Originally Posted by #!/usr/bin/which

Code:

$ echo apple | grep -o .
a
p
p
l
e

Wow!!---that's one I would not have thought of.