src/utils/bedToBigBed/bedToBigBed.c 1.24

Index: src/utils/bedToBigBed/bedToBigBed.c
===================================================================
RCS file: /projects/compbio/cvsroot/kent/src/utils/bedToBigBed/bedToBigBed.c,v
retrieving revision 1.23
retrieving revision 1.24
diff -b -B -U 4 -r1.23 -r1.24
--- src/utils/bedToBigBed/bedToBigBed.c	6 Apr 2010 23:42:59 -0000	1.23
+++ src/utils/bedToBigBed/bedToBigBed.c	19 May 2010 18:51:13 -0000	1.24
@@ -30,9 +30,11 @@
   "   bedToBigBed in.bed chrom.sizes out.bb\n"
   "Where in.bed is in one of the ascii bed formats, but not including track lines\n"
   "and chrom.sizes is two column: <chromosome name> <size in bases>\n"
   "and out.bb is the output indexed big bed file.\n"
-  "The in.bed file must be sorted by chromosome,start.\n"
+  "The in.bed file must be sorted by chromosome,start,\n"
+  "  to sort a bed file, use the unix sort command:\n"
+  "     sort -k1,1 -k2,2 unsorted.bed > sorted.bed\n"
   "\n"
   "options:\n"
   "   -blockSize=N - Number of items to bundle in r-tree.  Default %d\n"
   "   -itemsPerSlot=N - Number of data points bundled at lowest level. Default %d\n"