How to delete multiple space or tabs from a read only file

Shell Programming and Scripting
1

Hi,

Actually I am want to cut the three fields of "file-nr" file.

[yogender@gfmdatabase yogender]$ cat /proc/sys/fs/file-nr
638 219 52270

I want to assign these value to diffrent varibales as follow:-
a=638
b=219
c=52270

I tried to use cut command for this purpose and also tried to squeeze all sapces to a single space, but didn't succed.

I know file-nr is a read only file but there would be any way to cut these fields/values.

Kindly help me with this.

Thanks -
Yogender

2

if it IS read only... no way. you can't "cut" the values from the file but you can assign them to varibles anyway...

3

Hi DukeNuke,

Could you Please suggest how can i assign these values to three diffrent variables?

Thanks-
Yogi

4 
set -- `cat /proc/sys/fs/file-nr`
a=$1
b=$2
c=$3
5

Thanks Era,

I got a good learning. It's working for me.

Regards,
Yogi

6

Is this something realted to positional parameters??

7

Yes, set -- allows you to set the positional parameters from basically an arbitrary input.