UNIX for Dummies Questions & Answers

I have friends that this command worked perfectly, but I would like to save the result in a variable, which I have not achieved

Code:

var=prueba.txt

echo $var | cut -d "." -f 1

prueba

I need to do this but does not work me

Code:

salida=echo $var | cut -d "." -f 1


echo "result:$salida"

prueba

try

Code:

salida=`echo $var | cut -d "." -f 1`

thank you very much worked perfectly

Hello tricampeon81,

you can use the following command also for same.

Code:

 salida=`echo "prueba.txt" | awk '{gsub(/\..*/,X,$0);print "result= " $0}'`

Output will be as follows.

Code:

echo $salida
result= prueba

Thanks,
R. Singh

Yikes!

Please notice, that every new process you start is taxing on the system. If you do this on a considerable amount of strings (like i.e. inside a loop) it will slow down your script considerably. Use "variable expansion" (or "parameter expansion", as it is also called) for this:

Code:

var="file.extension"
echo "${var%.*}"

If more than one delimiter characters can be in teh string you want to change notice, notice the following (longest/shortest match):

Code:

var="file.ext1.ex2.ext3"
echo "${var%.*}"
echo "${var%%.*}"

I hope this helps.

bakunin

I guess you mean echo "${var%.*}" and echo "${var%%.*}"

Yes, you are right! How on earth i could mix that up so consistently.... *shakes head about himself*

bakunin