iwconfig / ifconfig |grep odd 1

[tjbradford]

I want to Grep the output of the iwconfig and shutdown any adaptors it finds easy , well if you do ifconfig |grep TX it will display 2 line both of which contain the word TX

however if i do iwconfig |grep Radio
i get the whole iwconfig followed then the matching statement.

I want to be able to grep the word radio and when it finds run awk on it to obtain $1 eg eth0 and then run a ifconfig eth0 down command.

i guess the question is why is it outputting all that unwanted stuff with the grep in place?

Many thanks

 

[feherke]

Hi

Seems that [tt]iwconfig[/tt] has a weird behavior : outputs to stderr instead of stdout.

iwconfig 2>&1 | grep Radio

Feherke.

http://rootshell.be/~feherke/

 

[tjbradford]

lovely job , cheers for that , i have never come across this before , very handy thanks