| 1 | .TH GETCLUSTER 8 "20 April 1987" |
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| 2 | .SH NAME |
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| 3 | getcluster \- retrieve service cluster info from Hesiod as environment vars |
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| 4 | .SH SYNOPSIS |
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| 5 | getcluster [-b] hostname version |
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| 6 | |
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| 7 | # C shell example |
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| 8 | .br |
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| 9 | getcluster `hostname` 5.3 > file; source file |
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| 10 | |
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| 11 | # Bourne shell example |
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| 12 | .br |
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| 13 | getcluster -b `hostname` 5.3 > file; . file |
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| 14 | |
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| 15 | .PP |
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| 16 | .SH DESCRIPTION |
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| 17 | .I Getcluster |
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| 18 | queries the Hesiod database for service cluster information associated |
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| 19 | with the workstation on which it is run. It writes a set of environment |
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| 20 | variable assignments on its standard output in a format acceptable |
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| 21 | to the C shell, or, if the -b flag is present, in Bourne shell syntax. |
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| 22 | If any errors are encountered in querying the Hesiod database or |
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| 23 | during the output of the information, the standard |
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| 24 | output is truncated to size 0, ensuring that partial data will not |
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| 25 | remain in the file. |
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| 26 | .I Getcluster |
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| 27 | also returns an exit status of -1 if any errors were encountered. |
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| 28 | |
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| 29 | .I Getcluster |
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| 30 | is usually invoked from a suitable shell script in /etc/rc |
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| 31 | to retrieve environment variables which will be used by applications during |
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| 32 | the session. These are placed, if successful, in the files |
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| 33 | .I /etc/athena/clusterinfo |
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| 34 | and |
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| 35 | .I /etc/athena/clusterinfo.bsh |
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| 36 | to be accessed by the C shell in a user's .login file |
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| 37 | and the Bourne shell in a user's .profile, respectively. |
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| 38 | It may also be invoked directly by any user. |
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| 39 | .PP |
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| 40 | Getcluster uses the Hesiodnametypes "clustername" and "cluster". |
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| 41 | .SH FILES |
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| 42 | /etc/athena/clusterinfo |
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| 43 | /etc/athena/clusterinfo.bsh |
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| 44 | .SH "SEE ALSO" |
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| 45 | `Hesiod - Project Athena Technical Plan -- Name Service' |
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| 46 | .SH AUTHOR |
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| 47 | Steve Dyer, IBM/Project Athena |
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| 48 | .br |
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| 49 | Copyright 1987, Massachusetts Institute of Technology |
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| 50 | .br |
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| 51 | .SH BUGS |
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