Bash Scripting: Can i split a word in to letter?

[sky_knight02]

Is it possible to split a word in to letters?
Eg:
echo "word"
<any command>

[output]

word
w
o
r
d

[vsemaska]

Yes you can, look at the Parameter Expansion section in the bash manpage for:

${parameter:offset:length}

You'd have to set up a loop for the length of the word which can be determined with:

${#parameter}

[sky_knight02]

Could you please give me an example for the word "word"

[wje_lf]

sky_knight02, why don't you give it a shot? If it doesn't work and you have specific questions about your script, post the script here and ask your question.

We're not here to do the work for you, but we are here to help.

[sky_knight02]

Bill thanks for your reply,
Actually i didnt understand what is meant by offset and what is the syntax, for that only i asked a simple example.
I read bash man but i didnt understand how to call letter by letter from a word.

[sky_knight02]

Bill thanks for your reply,
Actually i didnt understand what is meant by offset and what is the syntax, for that only i asked a simple example.
I read bash man but i didnt understand how to call letter by letter from a word.

a=hello
echo ${a:2}

[output]
llo
im getting the first two letters delted... but I want to take a particular work from it, how to do it?

[vsemaska]

Offset means the number of letters to skip over. In your example you specified to skip over 2 letters 'he'. Since you didn't specify the length to return you got the rest of the word 'llo'.

Try this example. It'll print the length of 'hello' and extract the 1st 2 letters by using offest 0 and then offset 1. The 1 at the end of each means to return one letter.

a=hello
echo ${#a}
echo ${a:0:1}
echo ${a:1:1}

[sky_knight02]

Thanks vsemaska now i understood... this helped me a lot....

[drl]

Hi.

Also methods like:

echo word | sed 's/\(.\)/\1\n/g'

cheers, drl

[sky_knight02]

Thanks drl... that was great.... i think i need to spend some time on sed...
Ill soon post the result of this help in here....