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Finish up yes(1) by adding multiple string support

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FRIGN 2015-02-01 02:13:47 +01:00
parent 27b770c02c
commit f40608ef09
3 changed files with 13 additions and 7 deletions
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2
README
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@ -84,7 +84,7 @@ The following tools are implemented ('*' == finished, '#' == UTF-8 support,
= sha512sum non-posix none = sha512sum non-posix none
wc yes none wc yes none
= xargs no -I, -L, -p, -s, -t, -x = xargs no -I, -L, -p, -s, -t, -x
= yes yes none =* yes yes none
The complement of sbase is ubase[1] which is Linux-specific and The complement of sbase is ubase[1] which is Linux-specific and
provides all the non-portable tools. Together they are intended to provides all the non-portable tools. Together they are intended to

8
yes.1
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@ -1,12 +1,14 @@
.Dd January 30, 2015 .Dd January 31, 2015
.Dt YES 1 .Dt YES 1
.Os sbase .Os sbase
.Sh NAME .Sh NAME
.Nm yes .Nm yes
.Nd output a string repeatedly .Nd output strings repeatedly
.Sh SYNOPSIS .Sh SYNOPSIS
.Nm .Nm
.Op Ar string ... .Op Ar string ...
.Sh DESCRIPTION .Sh DESCRIPTION
.Nm .Nm
will repeatedly output 'y' or the strings specified. will repeatedly write 'y' or a line with each
.Ar string
to stdout.

10
yes.c
View File

@ -7,18 +7,22 @@
static void static void
usage(void) usage(void)
{ {
eprintf("usage: %s [string]\n", argv0); eprintf("usage: %s [string ...]\n", argv0);
} }
int int
main(int argc, char *argv[]) main(int argc, char *argv[])
{ {
size_t i;
ARGBEGIN { ARGBEGIN {
default: default:
usage(); usage();
} ARGEND; } ARGEND;
for (;;) for (i = 0; ;i++, i %= argc) {
puts(argc >= 1 ? argv[0] : "y"); printf("%s", (argc > 0) ? argv[i] : "y");
putchar((i == argc - 1) ? '\n' : ' ');
}
return 1; /* should not reach */ return 1; /* should not reach */
} }