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option -f and -i are exclusive

Browse Source 
all flag variables initialized with zero
respond `Y' is equal to `y'
update usage string
prompt only if source exist

ignore -i option if file descriptor stdin not refers to a valid
terminal type device
This commit is contained in:
Wolfram Schneider 1996-02-18 18:44:58 +00:00
parent ef83c41f6d
commit 1efb053dc4
2 changed files with 30 additions and 10 deletions
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19
bin/mv/mv.1
View File

@ -33,7 +33,7 @@
.\" SUCH DAMAGE.
.\"
.\" @(#)mv.1 8.1 (Berkeley) 5/31/93
.\" $Id: mv.1,v 1.2 1994/09/24 02:56:06 davidg Exp $
.\" $Id: mv.1,v 1.3 1995/08/15 19:44:39 joerg Exp $
.\"
.Dd May 31, 1993
.Dt MV 1
@ -77,17 +77,25 @@ The following options are available:
Do not prompt for confirmation before overwriting the destination
path.
(The
.Fl i
option is ignored if the
.Fl f
option is specified.)
option overrides any previous
.Fl i
options.)
.It Fl i
Causes
.Nm mv
to write a prompt to standard error before moving a file that would
overwrite an existing file.
If the response from the standard input begins with the character ``y'',
If the response from the standard input begins with the character
.Sq Li y
or
.Sq Li Y ,
the move is attempted.
(The
.Fl i
option overrides any previous
.Fl f
options.)
.El
.Pp
It is an error for either the
@ -121,6 +129,7 @@ The
utility exits 0 on success, and >0 if an error occurs.
.Sh SEE ALSO
.Xr cp 1 ,
.Xr rm 1 ,
.Xr symlink 7
.Sh STANDARDS
The

21
bin/mv/mv.c
View File

@ -33,7 +33,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: mv.c,v 1.2 1994/09/24 02:56:07 davidg Exp $
* $Id: mv.c,v 1.3 1995/10/07 10:42:48 bde Exp $
*/
#ifndef lint
@ -79,13 +79,17 @@ main(argc, argv)
int ch;
char path[MAXPATHLEN + 1];
while ((ch = getopt(argc, argv, "-if")) != EOF)
fflg = iflg = 0;
while ((ch = getopt(argc, argv, "-if?")) != EOF)
switch (ch) {
case 'i':
iflg = 1;
iflg = isatty(STDIN_FILENO);
fflg = 0;
break;
case 'f':
fflg = 1;
iflg = 0;
break;
case '-': /* Undocumented; for compatibility. */
goto endarg;
@ -152,6 +156,13 @@ do_move(from, to)
* make sure the user wants to clobber it.
*/
if (!fflg && !access(to, F_OK)) {
/* prompt only if source exist */
if (lstat(from, &sb) == -1) {
warn("%s", from);
return (1);
}
ask = 0;
if (iflg) {
(void)fprintf(stderr, "overwrite %s? ", to);
@ -167,7 +178,7 @@ do_move(from, to)
if (ask) {
if ((ch = getchar()) != EOF && ch != '\n')
while (getchar() != '\n');
if (ch != 'y')
if (ch != 'y' && ch != 'Y')
return (0);
}
}
@ -303,6 +314,6 @@ void
usage()
{
(void)fprintf(stderr,
"usage: mv [-if] src target;\n or: mv [-if] src1 ... srcN directory\n");
"usage: mv [-if] src target;\n or: mv [-i | -f] src1 ... srcN directory\n");
exit(1);
}