bioawk for identifiers that don't match pattern

Question

[jyu429]

Hi, I tried using bioawk as follows

bioawk -c fastx '$name !/P/ { print ">"$name; print $seq }' < mat.fasta
bioawk -c fastx '$name ! /P/ { print ">"$name; print $seq }' < mat.fasta

but it says

bioawk: syntax error at source line 1
 context is
    $name >>>  !/ <<<
bioawk: bailing out at source line 1

Could someone tell me what silly error I'm doing? Thanks

[jyu429]

Thanks! Worked perfectly!

Answer 1

[Pierre Lindenbaum]

(not tested) try

!($name ~ /P/ )