| BEGIN { FS = ":" } | |
| { if (a) print "a", a | |
| if (b == 0) print "b", b | |
| if ( c == "0") print "c", c | |
| if (d == "") print "d", d | |
| if (e == 1-1) print "e", e | |
| } | |
| $1 == 0 {print "$1 = 0"} | |
| $1 == "0" {print "$1 = quoted 0"} | |
| $1 == "" {print "$1 = null string"} | |
| $5 == 0 {print "$5 = 0"} | |
| $5 == "0" {print "$5 = quoted 0"} | |
| $5 == "" {print "$5 = null string"} | |
| $1 == $3 {print "$1 = $3"} | |
| $5 == $6 {print "$5 = $6"} |