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Christopher Faylor 2002-07-10 00:30:53 +00:00
parent 5051ed270c
commit 6394f3595a
1 changed files with 54 additions and 27 deletions
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winsup/utils/utils.sgml
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@ -711,7 +711,7 @@ Other options:
<para> <command>passwd</command> changes passwords for user accounts.
A normal user may only change the password for their own account,
the administrators may change the password for any account.
but administrators may change passwords on any account.
<command>passwd</command> also changes account information, such as
password expiry dates and intervals.</para>
@ -722,34 +722,15 @@ enter the correct password. The administrators are permitted to
bypass this step so that forgotten passwords may be changed.</para>
<para>The user is then prompted for a replacement password.
<command>passwd</command> will prompt again and compare the second entry
against the first. Both entries are require to match in order for the
password to be changed.</para>
<command>passwd</command> will prompt twice for this replacement and
compare the second entry against the first. Both entries are require to
match in order for the password to be changed.</para>
<para>After the password has been entered, password aging information
is checked to see if the user is permitted to change their password
at this time. If not, <command>passwd</command> refuses to change the
password and exits.</para>
<para>Password expiry and length: The password aging information may be
changed by the administrators with the <literal>-x</literal>,
<literal>-n</literal> and <literal>-i</literal> options. The
<literal>-x</literal> option is used to set the maximum number of days
a password remains valid. After <emphasis>max</emphasis> days, the
password is required to be changed. The <literal>-n</literal> option is
used to set the minimum number of days before a password may be changed.
The user will not be permitted to change the password until
<emphasis>min</emphasis> days have elapsed. The <literal>-i</literal>
option is used to disable an account after the password has been expired
for a number of days. After a user account has had an expired password
for <emphasis>inact</emphasis> days, the user may no longer sign on to
the account. Allowed values for the above options are 0 to 999. The
<literal>-L</literal> option sets the minimum length of allowed passwords
for users, which doesn't belong to the administrators group, to
<emphasis>len</emphasis> characters. Allowed values for the minimum
password length are 0 to 14. In any of the above cases, a value of 0
means `no restrictions'.</para>
<para>Account maintenance: User accounts may be locked and unlocked with the
<literal>-l</literal> and <literal>-u</literal> flags. The
<literal>-l</literal> option disables an account. The <literal>-u</literal>
@ -758,6 +739,26 @@ option re-enables an account.</para>
<para>The account status may be given with the <literal>-S</literal>
option. The status information is self explanatory.</para>
<para>Administrators can also use <command>passwd</command> to change
system-wide password expiry and length requirements with the
<literal>-i</literal>, <literal>-n</literal>, <literal>-x</literal>,
and <literal>-L</literal> options. The <literal>-i</literal>
option is used to disable an account after the password has been expired
for a number of days. After a user account has had an expired password
for <emphasis>NUM</emphasis> days, the user may no longer sign on to
the account. The <literal>-n</literal> option is
used to set the minimum number of days before a password may be changed.
The user will not be permitted to change the password until
<emphasis>MINDAYS</emphasis> days have elapsed. The
<literal>-x</literal> option is used to set the maximum number of days
a password remains valid. After <emphasis>MAXDAYS</emphasis> days, the
password is required to be changed. Allowed values for the above options
are 0 to 999. The <literal>-L</literal> option sets the minimum length of
allowed passwords for users who don't belong to the administrators group
to <emphasis>LEN</emphasis> characters. Allowed values for the minimum
password length are 0 to 14. In any of the above cases, a value of 0
means `no restrictions'.</para>
<para>Limitations: Users may not be able to change their password on
some systems.</para>
@ -782,10 +783,36 @@ With no options, ps outputs the long format by default
<para>The <command>ps</command> program gives the status of all the
Cygwin processes running on the system (ps = "process status"). Due
to the limitations of simulating a POSIX environment under Windows,
there is little information to give. The PID column is the process ID
you need to give to the <command>kill</command> command. The WINPID
column is the process ID that's displayed by NT's Task Manager
program.</para>
there is little information to give.
</para>
<para>
The PID column is the process ID you need to give to the
<command>kill</command> command. The PPID is the parent process ID,
and PGID is the process group ID. The WINPID column is the process
ID displayed by NT's Task Manager program. The TTY column gives which
pseudo-terminal a process is running on, or a <literal>'?'</literal>
for services. The UID column shows which user owns each process.
STIME is the time the process was started, and COMMAND gives the name
of the program running.
</para>
<para>
By default <command>ps</command> will only show processes owned by the
current user. With either the <literal>-a</literal> or <literal>-e</literal>
option, all user's processes (and system processes) are listed. There are
historical UNIX reasons for the synonomous options, which are functionally
identical. The <literal>-f</literal> option outputs a "full" listing with
usernames for UIDs. The <literal>-l</literal> option is the default display
mode, showing a "long" listing with all the above columns. The other display
option is <literal>-s</literal>, which outputs a shorter listing of just
PID, TTY, STIME, and COMMAND. The <literal>-u</literal> option allows you
to show only processes owned by a specific user. The <literal>-W</literal>
option causes <command>ps</command> show non-Cygwin Windows processes as
well as Cygwin processes. The WINPID is also the PID, and they can be killed
with the Cygwin <command>kill</command> command's <literal>-f</literal>
option.
</para>
</sect2>