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sorry I wasn't to explicit.
I just need the length of the name of that varable and not the content.thanks

Hi everyone!
I have a question.
How can I limit the length of a variable?
If its bigger than 9 for example to stop sa script from running.

thanks.
I didn't knew that can be solved whitout "getline"
thanks again.

SOLVED

#!/bin/bash
file=$1
awk
'
{
if ( NR % 2 == 0)
{ ( getline < "$file" )
print > "even.txt"
}
else
{ ( getline < "$file" )
print > "odd.txt"
}
}
' $file

I want to take the even-numbered lines from a file and put them in a separate file and the same thing with the odd-numbered lines.

#!/bin/bash
file=$1
awk
'
{
if ( NR % 2 == 0)
{ ((...

I didnt really understood.
I'm looking for a solution more simple and not to use awk
#!/bin/bash

read file.txt
x= 'cut -f(2n) file.txt'
y='cut -f(2n+1) file.txt'

and somehow

x= new1.txt...

Okay!
I dont realy understand!
What I want to do!
I want to read a file and take the 2,4,6,.....rows from it an d put them in a separate file and do the same whit the 1,3,5,7,.... rows.
My...

okay!
but the output i don't want to be the content of that file.

#!bin/bash

(not) read x (but) command something.txt
something like this

I want that my input to be a file.To read a file as input.How can I do that?

ok! That was not so dificult.thanks
Now what i want is :
if its number to write it in reverse order and if it a text to write a message
"hey pal are you blind!you don't see that this is not a...

Because I've heard that this is the easyiest method and it could be a good start for me.Thanks!

ok!
I didn't understood verry much but:
I need a script that starts whit
" #!/bin/bash
read number
......


echo $reversenumber "
something like this.
And please explain the...

Hi to everyone!
I say from the begining the I'm new to shell scripting but I want to learn it.
My first request sound like this:
I would like to make a shell script the returns a number but in the...