diff options
Diffstat (limited to 'usr.bin/uniq/uniq.c')
| -rw-r--r-- | usr.bin/uniq/uniq.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/usr.bin/uniq/uniq.c b/usr.bin/uniq/uniq.c index 972581f..8f302ca 100644 --- a/usr.bin/uniq/uniq.c +++ b/usr.bin/uniq/uniq.c @@ -45,7 +45,7 @@ static const char copyright[] = static char sccsid[] = "@(#)uniq.c 8.3 (Berkeley) 5/4/95"; #endif static const char rcsid[] = - "$Id$"; + "$Id: uniq.c,v 1.3 1997/08/21 06:51:10 charnier Exp $"; #endif /* not lint */ #include <ctype.h> @@ -75,9 +75,10 @@ main (argc, argv) FILE *ifp, *ofp; int ch; char *prevline, *thisline, *p; + int iflag = 0, comp; obsolete(argv); - while ((ch = getopt(argc, argv, "-cdf:s:u")) != -1) + while ((ch = getopt(argc, argv, "-cdif:s:u")) != -1) switch (ch) { case '-': --optind; @@ -88,6 +89,9 @@ main (argc, argv) case 'd': dflag = 1; break; + case 'i': + iflag = 1; + break; case 'f': numfields = strtol(optarg, &p, 10); if (numfields < 0 || *p) @@ -152,7 +156,12 @@ done: argc -= optind; } /* If different, print; set previous to new value. */ - if (strcmp(t1, t2)) { + if (iflag) + comp = strcasecmp(t1, t2); + else + comp = strcmp(t1, t2); + + if (comp) { show(ofp, prevline); t1 = prevline; prevline = thisline; @@ -245,6 +254,6 @@ static void usage() { (void)fprintf(stderr, - "usage: uniq [-c | -du] [-f fields] [-s chars] [input [output]]\n"); + "usage: uniq [-c | -du | -i] [-f fields] [-s chars] [input [output]]\n"); exit(1); } |
