grep
Syntax: %grep(filenum,pattern)
search the filenum file and return lines that match the pattern.
Example:
#FILE 1 "num_test.txt"
#99 {#WRITE 1 %i}
#CLOSE 1
this just creates a test file containing the numbers 1 to 99 (each on a line)
now:
#FILE 1 "num_test.txt"
#SHOW %grep(1,"[35]$")
#CLOSE 1 displays a list of all lines ending in either a 3 or 5; i.e. it outputs:
Opened num_test.txt as file 1
3|5|13|15|23|25|33|35|43|45|53|55|63|65|73|75|83|85|93|95
Closed num_test.txt on file 1
%abs