diff options
Diffstat (limited to 'usr.bin/env/env.c')
| -rw-r--r-- | usr.bin/env/env.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/usr.bin/env/env.c b/usr.bin/env/env.c index b11a0b7..34f1e73 100644 --- a/usr.bin/env/env.c +++ b/usr.bin/env/env.c @@ -71,7 +71,7 @@ main(int argc, char **argv) altpath = NULL; want_clear = 0; - while ((ch = getopt(argc, argv, "-iP:S:v")) != -1) + while ((ch = getopt(argc, argv, "-iP:S:u:v")) != -1) switch(ch) { case '-': case 'i': @@ -87,6 +87,13 @@ main(int argc, char **argv) */ split_spaces(optarg, &optind, &argc, &argv); break; + case 'u': + if (env_verbosity) + fprintf(stderr, "#env unset:\t%s\n", optarg); + rtrn = unsetenv(optarg); + if (rtrn == -1) + err(EXIT_FAILURE, "unsetenv %s", optarg); + break; case 'v': env_verbosity++; if (env_verbosity > 1) @@ -135,7 +142,7 @@ static void usage(void) { (void)fprintf(stderr, - "usage: env [-iv] [-P utilpath] [-S string] [name=value ...]" - " [utility [argument ...]]\n"); + "usage: env [-iv] [-P utilpath] [-S string] [-u name]\n" + " [name=value ...] [utility [argument ...]]\n"); exit(1); } |
