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Add a -q option to suppress header lines when multiple files are specified.

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Approved by:	cperciva (mentor)
MFC after:	1 week
This commit is contained in:
Florent Thoumie 2006-06-29 22:07:49 +00:00
parent 1de763bd77
commit aa1d7ce72f
4 changed files with 19 additions and 8 deletions
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2
usr.bin/tail/extern.h
View File

@ -72,5 +72,5 @@ void oerr(void);
int mapprint(struct mapinfo *, off_t, off_t);
int maparound(struct mapinfo *, off_t);
extern int Fflag, fflag, rflag, rval, no_files;
extern int Fflag, fflag, qflag, rflag, rval, no_files;
extern const char *fname;

5
usr.bin/tail/forward.c
View File

@ -249,7 +249,8 @@ show(file_info_t *file)
while ((ch = getc(file->fp)) != EOF) {
if (last != file && no_files > 1) {
(void)printf("\n==> %s <==\n", file->file_name);
if (!qflag)
(void)printf("\n==> %s <==\n", file->file_name);
last = file;
}
if (putchar(ch) == EOF)
@ -322,7 +323,7 @@ follow(file_info_t *files, enum STYLE style, off_t off)
if (file->fp) {
active = 1;
n++;
if (no_files > 1)
if (no_files > 1 && !qflag)
(void)printf("\n==> %s <==\n", file->file_name);
forward(file->fp, style, off, &file->st);
if (Fflag && fileno(file->fp) != STDIN_FILENO)

11
usr.bin/tail/tail.1
View File

@ -35,7 +35,7 @@
.\" @(#)tail.1 8.1 (Berkeley) 6/6/93
.\" $FreeBSD$
.\"
.Dd June 6, 1993
.Dd June 29, 2006
.Dt TAIL 1
.Os
.Sh NAME
@ -49,6 +49,9 @@
.Fl r
.Oc
.Oo
.Fl q
.Oc
.Oo
.Fl b Ar number |
.Fl c Ar number |
.Fl n Ar number
@ -114,6 +117,8 @@ option is ignored if reading from standard input rather than a file.
The location is
.Ar number
lines.
.It Fl q
Suppresses printing of headers when multiple files are being examined.
.It Fl r
The
.Fl r
@ -139,7 +144,9 @@ header consisting of the string
.Dq ==> XXX <==
where
.Dq XXX
is the name of the file.
is the name of the file unless
.Fl q
flag is specified.
.Sh EXIT STATUS
.Ex -std
.Sh SEE ALSO

9
usr.bin/tail/tail.c
View File

@ -60,7 +60,7 @@ static const char sccsid[] = "@(#)tail.c 8.1 (Berkeley) 6/6/93";
#include "extern.h"
int Fflag, fflag, rflag, rval, no_files;
int Fflag, fflag, qflag, rflag, rval, no_files;
const char *fname;
file_info_t *files;
@ -114,7 +114,7 @@ main(int argc, char *argv[])
obsolete(argv);
style = NOTSET;
while ((ch = getopt(argc, argv, "Fb:c:fn:r")) != -1)
while ((ch = getopt(argc, argv, "Fb:c:fn:qr")) != -1)
switch(ch) {
case 'F': /* -F is superset of (and implies) -f */
Fflag = fflag = 1;
@ -131,6 +131,9 @@ main(int argc, char *argv[])
case 'n':
ARG(1, FLINES, RLINES);
break;
case 'q':
qflag = 1;
break;
case 'r':
rflag = 1;
break;
@ -199,7 +202,7 @@ main(int argc, char *argv[])
ierr();
continue;
}
if (argc > 1) {
if (argc > 1 && !qflag) {
(void)printf("%s==> %s <==\n",
first ? "" : "\n", fname);
first = 0;