in reply to Re^3: grep for lines containg two variables
in thread grep for lines containg two variables
listing above was posted as pseudo code and not the actual code run - for $string1 and $string2 in the test case I put the literal strings of interest in place (and have updated to illustrate) I used what I found interesting for my specific situation and I left it generic when posting the code example above because I thought that would be more useful - I understand your point re: my $str... and now that works properly if I use your qr update (and I get the same times). This is not a useful or valid benchmark?
my input file was:
RH_MEa0001bA09_1 1253 871 10 GGAGAGGGGTCGAATTTCTC... RH_MEa0001bB03_1 553 104 12 GTCCGTTGCAACAAAAGTGA... RH_MEa0001bC11_1 1160 385 12 TGGGGTTGAAGAAAGGTTNG... RH_MEa0001bG06_1 710 14 18 Invalid starting position (14) RH_MEa0001bG06_2 710 34 10 GGGGGACACCTTCTCTCTCT... RH_MEa0001bG06_3 710 51 10 GGGGGACACCTTCTCTCTCT... etc
since diff boxes have different performance depending on input_files, strings, mem., proc. etc - I guess it is better to list relative results instead of specifics ... is it just luck that your results confirm the general reason I posted, that lookahead grep is the fastest (accurate) solution?