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The options are as follows:
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Equivalent to
| |
| |
Write the time and date of the last system reboot. | |
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Write column headings above the output. | |
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Show information about the terminal attached to standard input only. | |
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"Quick mode": List the names and number of logged in users in columns. All other command line options are ignored. | |
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Show the name, line and time fields only. This is the default. | |
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Indicate whether each user is accepting messages.
One of the following characters is written:
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+ | User is accepting messages. |
amp;- | User is not accepting messages. |
amp;? | An error occurred. |
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Show idle time for each user in hours and minutes as hh:mm, ‘amp;.’ if the user has been idle less than a minute, and "old" if the user has been idle more than 24 hours. | |
am I |
Equivalent to
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By default, who gathers information from the file /var/run/utx.active. An alternate file may be specified which is usually /var/log/utx.log (or /var/log/utx.log.[0-6] depending on site policy as utx.log can grow quite large and daily versions may or may not be kept around after compression by ac(8)). The utx.log file contains a record of every login, logout, crash, shutdown and date change since utx.log was last truncated or created.
If /var/log/utx.log is being used as the file, the user name may be empty or one of the special characters '|', '}' and '~'. Logouts produce an output line without any user name. For more information on the special characters, see getutxent(3).
/var/run/utx.active
/var/log/utx.log /var/log/utx.log.[0-6] | |
WHO (1) | February 11, 2012 |
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