rac@sherpa.uucp (Roger Cornelius) (11/21/89)
I noticed today that the look(CT) command has some problems. Try "look ??" where "??" is any two characters which might begin a word. None of the examples I tried found anything. Adding a file name to the end caused it to find some of the matching words, but not all. I assume this is because the default -df flags are disabled when a filename is specified. Try "look sa /usr/dict/words" to repeat. If you examine /usr/dict/words, you'll see that the words look found (in the "look sa /usr/dict/words" example) are delimited by uppercase words, i.e., the word before the first word found, and the word after the last word found both begin with uppercase characters. But there are other words beginning with "sa" (uc and lc) both before and after the found words. Using the -f (fold uc to lc) flag prints all matching words as would be expected. This appears to be caused partly by /usr/dict/words being sorted without regard to case. Re-sorting it and then using look will find all occurrances, but only if the dictionary-file is specified on the command line. Can anyone who has seen the look source explain the behavior?