deda80a245
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@1980 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
119 lines
3.0 KiB
Plaintext
119 lines
3.0 KiB
Plaintext
=head1 B<NAME>
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B<xdshbak> - Formats the output of the B<xdsh> command.
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=head1 B<SYNOPSIS>
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B<xdshbak> [B<-c> | B<-x>]
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=head1 B<DESCRIPTION>
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The B<xdshbak> command formats output from the B<xdsh> command. The B<xdshbak>
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command takes, as input, lines in the following format:
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host_name: line of output from remote command
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The B<xdshbak> command formats the lines as follows and writes them to
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standard output. Assume that the output from node3 and node4
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is identical, and the B<-c> (collapse) flag was specified:
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HOSTS --------------------------------------------------------
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node1
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--------------------------------------------------------------
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.
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.
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lines from xdsh for node1 with hostnames stripped off
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.
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.
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HOSTS --------------------------------------------------------
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node2
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--------------------------------------------------------------
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.
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lines from xdsh for node2 with hostnames stripped off
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.
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HOSTS --------------------------------------------------------
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node3, node4
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--------------------------------------------------------------
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.
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lines from xdsh for node 3 with hostnames stripped off
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.
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When output is displayed from more than one node in collapsed form, the
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host names are displayed alphabetically. When output is not collapsed,
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output is displayed sorted alphabetically by host name. The B<xdshbak>
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command writes "." for each 1000 lines of output processed (to show progress),
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since it won't display the output until it has processed all of it.
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If the B<-x> flag is specified, the extra header lines that xdshbak nor-
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mally displays for each node will be omitted, and the hostname at the beginning
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of each line is not stripped off, but B<xdshbak> still sorts
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the output by hostname for easier viewing:
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node1: lines from xdsh for node1
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node2: lines from xdsh for node2
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B<Standard> B<Error>
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When the B<xdshbak> filter is used and standard error messages are gener-
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ated, all error messages on standard error appear before all standard
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output messages. This is true with and without the B<-c> flag.
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=head1 B<OPTIONS>
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=over 4
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=item B<-c>
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If the output from multiple nodes is identical it will be collapsed
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and displayed only once.
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=item B<-x>
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Omit the extra header lines that xdshbak normally displays for
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each node. This provides
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more compact output, but xdshbak still sorts the output by
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node name for easier viewing.
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This option should not be used with B<-c>.
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=back
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=head1 B<EXAMPLES>
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=over 3
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=item *
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To display the results of a command issued on several nodes, in
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the format used in the Description, enter:
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B<xdsh> I<node1,node2,node3 cat /etc/passwd> | B<xdshbak>
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=item *
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To display the results of a command issued on several nodes with
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identical output displayed only once, enter:
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B<xdsh> I<host1,host2,host3 pwd> | B<xdshbak -c>
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=item *
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To display the results of a command issued on several nodes with
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compact output and be sorted alphabetically by host name, enter:
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B<xdsh> I<host1,host2,host3 date> | B<xdshbak -x>
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=back
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=head1 B<SEE ALSO>
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L<xdsh(1)|xdsh.1>, L<xcoll(1)|xcoll.1>
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