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diff --git a/doc/chpst.8.html b/doc/chpst.8.html index 260b9dd..0337087 100644 --- a/doc/chpst.8.html +++ b/doc/chpst.8.html @@ -23,103 +23,109 @@ and runs <i>prog</i>. <dl> -<dt><b>-u <i>user[:group]</b> </i></dt> -<dd>setuidgid. Set uid and gid to the <i>user</i>’s -uid and gid. If <i>user</i> is followed by a colon and a <i>group</i>, set the gid to -<i>group</i>’s gid instead of <i>user</i>’s gid. If <i>group</i> consists of a colon-separated list -of group names, <b>chpst</b> sets the group ids of all listed groups. All initial +<dt><b>-u <i>[:]user[:group]</b> </i></dt> +<dd>setuidgid. Set uid and gid to the +<i>user</i>’s uid and gid, as found in <i>/etc/passwd</i>. If <i>user</i> is followed by a colon +and a <i>group</i>, set the gid to <i>group</i>’s gid, as found in <i>/etc/group</i>, instead +of <i>user</i>’s gid. If <i>group</i> consists of a colon-separated list of group names, +<b>chpst</b> sets the group ids of all listed groups. If <i>user</i> is prefixed with +a colon, the <i>user</i> and all <i>group</i> arguments are interpreted as uid and gids +respectivly, and not looked up in the password or group file. All initial supplementary groups are removed. </dd> -<dt><b>-U <i>user[:group]</b> </i></dt> +<dt><b>-U <i>[:]user[:group]</b> </i></dt> <dd>envuidgid. Set the environment -variables $UID and $GID to the <i>user</i>’s uid and gid. If <i>user</i> is followed by -a colon and a <i>group</i>, set $GID to the <i>group</i>’s gid instead of <i>user</i>’s gid. </dd> - -<dt><b>-e -<i>dir</b> </i></dt> -<dd>envdir. Set various environment variables as specified by files in the -directory <i>dir</i>: If <i>dir</i> contains a file named <i>k</i> whose first line is <i>v</i>, <b>chpst</b> -removes the environment variable <i>k</i> if it exists, and then adds the environment -variable <i>k</i> with the value <i>v</i>. The name <i>k</i> must not contain =. Spaces and tabs -at the end of <i>v</i> are removed, and nulls in <i>v</i> are changed to newlines. If -the file <i>k</i> is empty (0 bytes long), <b>chpst</b> removes the environment variable -<i>k</i> if it exists, without adding a new variable. </dd> +variables $UID and $GID to the <i>user</i>’s uid and gid, as found in <i>/etc/passwd</i>. +If <i>user</i> is followed by a colon and a <i>group</i>, set $GID to the <i>group</i>’s gid, +as found in <i>/etc/group</i>, instead of <i>user</i>’s gid. If <i>user</i> is prefixed with a +colon, the <i>user</i> and <i>group</i> arguments are interpreted as uid and gid respectivly, +and not looked up in the password or group file. </dd> + +<dt><b>-e <i>dir</b> </i></dt> +<dd>envdir. Set various +environment variables as specified by files in the directory <i>dir</i>: If <i>dir</i> +contains a file named <i>k</i> whose first line is <i>v</i>, <b>chpst</b> removes the environment +variable <i>k</i> if it exists, and then adds the environment variable <i>k</i> with +the value <i>v</i>. The name <i>k</i> must not contain =. Spaces and tabs at the end of +<i>v</i> are removed, and nulls in <i>v</i> are changed to newlines. If the file <i>k</i> is +empty (0 bytes long), <b>chpst</b> removes the environment variable <i>k</i> if it exists, +without adding a new variable. </dd> <dt><b>-/ <i>root</b> </i></dt> -<dd>chroot. Change the -root directory to <i>root</i> before starting <i>prog</i>. </dd> +<dd>chroot. Change the root directory to +<i>root</i> before starting <i>prog</i>. </dd> <dt><b>-n <i>inc</b> </i></dt> -<dd>nice. Add <i>inc</i> to the <i><b>nice</b>(2)</i> -value before starting <i>prog</i>. <i>inc</i> must be an integer, and may start with a -minus or plus. </dd> +<dd>nice. Add <i>inc</i> to the <i><b>nice</b>(2)</i> value before +starting <i>prog</i>. <i>inc</i> must be an integer, and may start with a minus or plus. +</dd> <dt><b>-l <i>lock</b> </i></dt> -<dd>lock. Open the file <i>lock</i> for writing, and obtain an -exclusive lock on it. <i>lock</i> will be created if it does not exist. If <i>lock</i> -is locked by another process, wait until a new lock can be obtained. </dd> +<dd>lock. Open the file <i>lock</i> for writing, and obtain an exclusive lock +on it. <i>lock</i> will be created if it does not exist. If <i>lock</i> is locked by another +process, wait until a new lock can be obtained. </dd> -<dt><b>-L <i>lock</b> -</i></dt> -<dd>The same as -l, but fail immediately if <i>lock</i> is locked by another process. -</dd> +<dt><b>-L <i>lock</b> </i></dt> +<dd>The same as -l, but +fail immediately if <i>lock</i> is locked by another process. </dd> <dt><b>-m <i>bytes</b> </i></dt> -<dd>limit memory. Limit the data segment, stack segment, locked physical -pages, and total of all segment per process to <i>bytes</i> bytes each. </dd> +<dd>limit memory. +Limit the data segment, stack segment, locked physical pages, and total +of all segment per process to <i>bytes</i> bytes each. </dd> -<dt><b>-d <i>bytes</b> -</i></dt> -<dd>limit data segment. Limit the data segment per process to <i>bytes</i> bytes. </dd> +<dt><b>-d <i>bytes</b> </i></dt> +<dd>limit data segment. +Limit the data segment per process to <i>bytes</i> bytes. </dd> -<dt><b>-o -<i>n</b> </i></dt> -<dd>limit open files. Limit the number of open file descriptors per process -to <i>n</i>. </dd> +<dt><b>-o <i>n</b> </i></dt> +<dd>limit open files. +Limit the number of open file descriptors per process to <i>n</i>. </dd> <dt><b>-p <i>n</b> </i></dt> -<dd>limit processes. Limit the number of processes per uid to <i>n</i>. </dd> +<dd>limit processes. +Limit the number of processes per uid to <i>n</i>. </dd> -<dt><b>-f <i>bytes</b> -</i></dt> -<dd>limit output size. Limit the output file size to <i>bytes</i> bytes. </dd> +<dt><b>-f <i>bytes</b> </i></dt> +<dd>limit output size. Limit +the output file size to <i>bytes</i> bytes. </dd> <dt><b>-c <i>bytes</b> </i></dt> -<dd>limit -core size. Limit the core file size to <i>bytes</i> bytes. </dd> +<dd>limit core size. Limit the core +file size to <i>bytes</i> bytes. </dd> <dt><b>-v</b> </dt> -<dd>verbose. Print verbose -messages to standard error. This includes warnings about limits unsupported -by the system. </dd> +<dd>verbose. Print verbose messages to standard error. +This includes warnings about limits unsupported by the system. </dd> <dt><b>-P</b> </dt> -<dd>pgrphack. Run <i>prog</i> in a new process group. </dd> +<dd>pgrphack. +Run <i>prog</i> in a new process group. </dd> <dt><b>-0</b> </dt> -<dd>Close standard -input before starting <i>prog</i>. </dd> +<dd>Close standard input before starting +<i>prog</i>. </dd> <dt><b>-1</b> </dt> -<dd>Close standard output before starting <i>prog</i>. -</dd> +<dd>Close standard output before starting <i>prog</i>. </dd> <dt><b>-2</b> </dt> -<dd>Close standard error before starting <i>prog</i>. </dd> +<dd>Close standard error +before starting <i>prog</i>. </dd> </dl> <h2><a name='sect4'>Exit Codes</a></h2> -<b>chpst</b> exits 100 when -called with wrong options. It prints an error message and exits 111 if it -has trouble changing the process state. Otherwise its exit code is the same -as that of <i>prog</i>. +<b>chpst</b> exits 100 when called with wrong options. +It prints an error message and exits 111 if it has trouble changing the +process state. Otherwise its exit code is the same as that of <i>prog</i>. <h2><a name='sect5'>Emulation</a></h2> -If <b>chpst</b> is called as <b>envdir</b>, <b>envuidgid</b>, <b>pgrphack</b>, -<b>setlock</b>, <b>setuidgid</b>, or <b>softlimit</b>, it emulates the functionality of these -programs from the daemontools package respectively. +If +<b>chpst</b> is called as <b>envdir</b>, <b>envuidgid</b>, <b>pgrphack</b>, <b>setlock</b>, <b>setuidgid</b>, or +<b>softlimit</b>, it emulates the functionality of these programs from the daemontools +package respectively. <h2><a name='sect6'>See Also</a></h2> -<i>sv(8)</i>, <i>runsv(8)</i>, -<i>setsid(2)</i>, <i>runit(8)</i>, <i>runit-init(8)</i>, <i>runsvdir(8)</i>, <i>runsvchdir(8)</i> <p> +<i>sv(8)</i>, <i>runsv(8)</i>, <i>setsid(2)</i>, <i>runit(8)</i>, <i>runit-init(8)</i>, +<i>runsvdir(8)</i>, <i>runsvchdir(8)</i> <p> <i>http://smarden.org/runit/</i><br> <i>http://cr.yp.to/daemontools.html</i><br> |