e70152e44cc66cc599ff6b699eb8adc07f3e656a
kent
  Sat May 24 21:09:34 2014 -0700
Adding Copyright NNNN Regents of the University of California to all files I believe with reasonable certainty were developed under UCSC employ or as part of Genome Browser copyright assignment.
diff --git src/utils/aNotB/aNotB.c src/utils/aNotB/aNotB.c
index 31b1340..f5fe38a 100644
--- src/utils/aNotB/aNotB.c
+++ src/utils/aNotB/aNotB.c
@@ -1,58 +1,61 @@
 /* aNotB - List symbols that are in a but not b. */
+
+/* Copyright (C) 2011 The Regents of the University of California 
+ * See README in this or parent directory for licensing information. */
 #include "common.h"
 #include "linefile.h"
 #include "hash.h"
 #include "options.h"
 
 
 void usage()
 /* Explain usage and exit. */
 {
 errAbort(
   "aNotB - List symbols that are in a but not b\n"
   "usage:\n"
   "   aNotB aFile bFile outFile\n"
   "A symbol in this context is the first word in a line\n"
   "options:\n"
   "   -xxx=XXX\n"
   );
 }
 
 struct hash *hashFirstWord(char *fileName)
 /* Hash first word in each line of file */
 {
 char *row[1];
 struct hash *hash = newHash(0);
 struct lineFile *lf = lineFileOpen(fileName, TRUE);
 while (lineFileRow(lf, row))
     {
     hashStore(hash, row[0]);
     }
 lineFileClose(&lf);
 return hash;
 }
 
 void aNotB(char *aFile, char *bFile, char *outFile)
 /* aNotB - List symbols that are in a but not b. */
 {
 struct hash *bHash = hashFirstWord(bFile);
 struct lineFile *lf = lineFileOpen(aFile, TRUE);
 FILE *f = mustOpen(outFile, "w");
 char *row[1];
 while (lineFileRow(lf, row))
     {
     if (!hashLookup(bHash, row[0]))
 	fprintf(f, "%s\n", row[0]);
     }
 carefulClose(&f);
 }
 
 int main(int argc, char *argv[])
 /* Process command line. */
 {
 optionHash(&argc, argv);
 if (argc != 4)
     usage();
 aNotB(argv[1], argv[2], argv[3]);
 return 0;
 }