October 2001
Intermediate to advanced
1040 pages
22h 50m
English
% cat datafile northwest NW Joe Craig 3.0 .98 3 4 western WE Sharon Kelly 5.3 .97 5 23 southwest SW Chris Foster 2.7 .8 2 18 southern SO May Chin 5.1 .95 4 15 southeast SE Derek Johnson 4.0 .7 4 17 eastern EA Susan Beal 4.4 .84 5 20 northeast NE TJ Nichols 5.1 .94 3 13 north NO Val Shultz 4.5 .89 5 9 central CT Sheri Watson 5.7 .94 5 13
nawk '$7 == 5' datafile western WE Sharon Kelly 5.3 .97 5 23 eastern EA Susan Beal 4.4 .84 5 20 north NO Val Shultz 4.5 .89 5 9 central CT Sheri Watson 5.7 .94 5 13 |
EXPLANATIONIf the seventh field ($7) is equal to the number 5, the record is printed. |
nawk '$2 == "CT"{print $1, $2}' datafile central CT |
EXPLANATIONIf the second field is ... |