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unshare: fix SYNOPSIS and usage() 

The "program" is optional and $SHELL is executed by default.

Addresses: https://github.com/karelzak/util-linux/issues/389
Signed-off-by: Karel Zak <kzak@redhat.com>
This commit is contained in:
Karel Zak 2017-01-09 12:48:14 +01:00
parent 0f0b5823a6
commit b5672517fd
2 changed files with 5 additions and 4 deletions
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7
sys-utils/unshare.1
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@ -4,11 +4,12 @@ unshare \- run program with some namespaces unshared from parent
.SH SYNOPSIS .SH SYNOPSIS
.B unshare .B unshare
[options] [options]
.I program .RI [ program
.RI [ arguments ] .RI [ arguments ]]
.SH DESCRIPTION .SH DESCRIPTION
Unshares the indicated namespaces from the parent process and then executes Unshares the indicated namespaces from the parent process and then executes
the specified \fIprogram\fR. the specified \fIprogram\fR. If \fIprogram\fR is not given, then ``${SHELL}'' is
run (default: /bin/sh).
.PP .PP
The namespaces can optionally be made persistent by bind mounting The namespaces can optionally be made persistent by bind mounting
/proc/\fIpid\fR/ns/\fItype\fR files to a filesystem path and entered with /proc/\fIpid\fR/ns/\fItype\fR files to a filesystem path and entered with

2
sys-utils/unshare.c
View File

@ -243,7 +243,7 @@ static void usage(int status)
FILE *out = status == EXIT_SUCCESS ? stdout : stderr; FILE *out = status == EXIT_SUCCESS ? stdout : stderr;
fputs(USAGE_HEADER, out); fputs(USAGE_HEADER, out);
fprintf(out, _(" %s [options] <program> [<argument>...]\n"), fprintf(out, _(" %s [options] [<program> [<argument>...]]\n"),
program_invocation_short_name); program_invocation_short_name);
fputs(USAGE_SEPARATOR, out); fputs(USAGE_SEPARATOR, out);