Reading lines from a text file

There is no simple file reading facility in the C-shell. So we call upon awk again.

     set file = `awk '{print $0}' sources.lis`

Variable file is a space-delineated array of the lines in file sources.lis. More useful is to extract a line at a time.

     set text = `awk -v ln=$j '{if (NR==ln) print $0}' sources.lis`

where shell variable j is a positive integer and no more than the number of lines in the file, returns the $j$th line in variable text.