egrep help - Shell Programming and Scripting

Vozx · #1 (**permalink**) 12-08-2005

How can i make something like
if (echo "$arg2" | egrep -s '^[0-9]+\.[0-9]+km/h+$|^[0-9]+km/h+$'); then
not to output the value of $arg2 on the screen, evertime i get match it outputs the value of the variable on the screen which i don't need to do. I know for grep its -q option but it doesn't work for egrep.

using bash shell btw.

Anyone know?

mona · #2 (**permalink**) 12-09-2005

Redirect to the trash file. This will prevent from displaying in the screen

Code:

if(echo "$arg2" | egrep -s '^[0-9]+\.[0-9]+km/h+$|^[0-9]+km/h+$' > /dev/null);

jim mcnamara · #3 (**permalink**) 12-09-2005

egrep -q stops display of results.

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