[SOLVED] Awk conditional how-to

Linux_Kidd · 11-04-2011, 09:24 AM

i have need a line in my awk script that basically says "if this or this or this or this, then do nothing"

right now it checks for empty line
if ( NF == 0 ) {}

but i need to add some OR's in there, need to check if $0 contains a pattern.

can i do this
if ( NF == 0 || $0 ~ /foo/ || $0 ~ /abc123/ ) {}

grail · 11-04-2011, 09:35 AM

http://www.gnu.org/software/gawk/man...ode/index.html

Linux_Kidd · 11-04-2011, 09:51 AM

Quote:

Originally Posted by grail

http://www.gnu.org/software/gawk/man...ode/index.html

well, i didnt want to go learn everything about awk (just not enough time right now), hence why i posted. i tested my bloated example and it works fine. then i did regex modification

if ( NF == 0 || $0 ~ /(pattern1)|(pattern2)|(pattern3)/ ) {}

thnx.

grail · 11-04-2011, 10:46 AM

You will find the site is broken up very well and under informative headings. I would suggest about 2 clicks from the top level could have explained how to OR

Linux_Kidd · 11-04-2011, 11:21 AM

Quote:

Originally Posted by grail

You will find the site is broken up very well and under informative headings. I would suggest about 2 clicks from the top level could have explained how to OR

its a great guide. thnx.