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awk as grep with variables

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# 1  
Old 02-08-2008
awk as grep with variables
i have such awk working fine but how to use variable instead of strings

awk '/asdasd.*asda.*asdasd/' file2.txt

This is not working:
awk '/${a}.*${b}.*${c}/' file2.txt

Thanks & regards
Peter
# 2  
Old 02-08-2008
Quote:
Originally Posted by pp56825
i have such awk working fine but how to use variable instead of strings

awk '/asdasd.*asda.*asdasd/' file2.txt

This is not working:
awk '/${a}.*${b}.*${c}/' file2.txt

Thanks & regards
Peter
Replace the single quotes with double quotes.
# 3  
Old 02-08-2008
Thanks, it's working
# 4  
Old 02-14-2008
One more help needed.
how to simulate in awk grep -i [ not case sensitive search ]
???

awk "/${a}.*${b}.*${c}/" file2.txt

Regards
Peter
# 5  
Old 02-14-2008
if your awk version has the IGNORECASE variable, you can set it in your script.
# 6  
Old 02-14-2008
Thanks i have
# 7  
Old 02-15-2008
One more
this is working:
ps -ef | awk -v level=250 -v inst=1 '/ifstart.*turuat1/ { nr++; if ($4 > max ) {max=$4}}; END { if ( nr != inst ) {r=1} else {if ( max > level ) r=2 }; print r }'

but in double cords with variables not:
ps -ef | awk -v level=250 -v inst=1 "/${p}.*${w}/ { nr++; if ($4 > max ) {max=$4}}; END { if ( nr != inst ) {r=1} else {if ( max > level ) r=2 }; print r }"

ERROR:
syntax error The source line is 1.
The error context is
/ifstart.*turuat1/ { nr++; if ( >>> > <<< max ) {max=}}; END { if ( nr != inst ) {r=1} else {if ( max > level ) r=2 }; print r }
awk: The statement cannot be correctly parsed.
The source line is 1.

WHY ?

Regards
Peter
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