bash

klavuzkarga · 12-14-2007, 11:07 AM

i'm trying to separate words in a string.
and i wrote this code by referring to similar codes in the forum.
but it only gives output "aaaaaa".
i want to get all words.
what's the problem in code? what should i do?

Code:

#!/bin/bash

metin="aaaaaa bbbbbbb ccccccc dddddd"

bar=(`echo $metin | tr '.' ' '`)
n=0
for i in ${bar}
do
	echo ${bar[n]}
	let n=$n+1;
done

unSpawn · 12-14-2007, 11:37 AM

Make array of "foo" called "bar", loop through total number of elements in array bar.

Code:

foo="aaaaaa bbbbbbb ccccccc dddddd"; bar=(${foo})
for i in `seq 0 $[${#bar[@]}-1]`; do echo ${bar[$i]}; done

klavuzkarga · 12-14-2007, 12:33 PM

Quote:

Originally Posted by unSpawn

Make array of "foo" called "bar", loop through total number of elements in array bar.

Code:

foo="aaaaaa bbbbbbb ccccccc dddddd"; bar=(${foo})
for i in `seq 0 $[${#bar[@]}-1]`; do echo ${bar[$i]}; done

as you said, i wrote this one;

Code:

#!/bin/bash

metin="aaaaaa bbbbbbb ccccccc dddddd"; bar=(${metin})

for i in `seq 0 $[${#bar[@]}-1]`;
do
	echo ${bar[$i]}
done

but i'm still getting this output;

Code:

[cumhur@localhost code]$ ./deneme.sh
aaaaaa
[cumhur@localhost code]$

klavuzkarga · 12-14-2007, 12:49 PM

i quess this must work;
but it doesn't;

Code:

#!/bin/bash

metin="aaaaa bbbbbb ccccc dddd"

for i in $metin
do
	echo $i
done

it writes just "aaaaaa"

colucix · 12-14-2007, 01:06 PM

The code posted from unSpawn works for me, but depending on the bash version the $[ ... ] construct may or may not work. You can try to substitute with the $(( ... )) construct, as in

Code:

#!/bin/bash

metin="aaaaaa bbbbbbb ccccccc dddddd"; bar=(${metin})

for i in `seq 0 $((${#bar[@]}-1))`;
do
	echo ${bar[$i]}
done

As for your last example (indeed I don't see any reason to introduce arrays), it should be

Code:

#!/bin/bash

metin="aaaaaa bbbbbbb ccccccc dddddd"

for i in $(echo $metin)
do
   echo $i
done

klavuzkarga · 12-14-2007, 01:11 PM

Quote:

Originally Posted by colucix

The code posted from unSpawn works for me,

it's strange because i restarted my pc and tried the code,
and now, it works..
thanks a lot

colucix · 12-14-2007, 01:13 PM

A reboot can fix a lot of things...