1CLUBAK(1)                  ClusterShell User Manual                  CLUBAK(1)
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NAME

6       clubak - format output from clush/pdsh-like output and more
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SYNOPSIS

9       clubak [ OPTIONS ]
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DESCRIPTION

12       clubak  formats  text  from standard input containing lines of the form
13       "node:output".  It is fully backward compatible with dshbak(1) but pro‐
14       vides additional features. For instance, clubak always displays its re‐
15       sults sorted by node/nodeset.
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17       You do not need to use clubak when using clush(1) as all output format‐
18       ting features are already included in. It is provided for other usages,
19       like post-processing results of the form "node:output".
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21       Like clush(1), clubak uses the ClusterShell.MsgTree module of the Clus‐
22       terShell library (see pydoc ClusterShell.MsgTree).
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INVOCATION

25       clubak should be started with connected standard input.
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OPTIONS

28       --version
29              show clubak version number and exit
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31       -b, -c gather nodes with same output (-c is provided for dshbak(1) com‐
32              patibility)
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34       -d, --debug
35              output more messages for debugging purpose
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37       -L     disable header block and order output by nodes
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39       -r, --regroup
40              fold nodeset using node groups
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42       -s GROUPSOURCE, --groupsource=GROUPSOURCE
43              optional groups.conf(5) group source to use
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45       --groupsconf=FILE
46              use alternate config file for groups.conf(5)
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48       -G, --groupbase
49              do not display group source prefix (always @groupname)
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51       -S SEPARATOR, --separator=SEPARATOR
52              node / line content separator string (default: :)
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54       -F, --fast
55              faster but memory hungry mode (preload all messages per node)
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57       -T, --tree
58              message tree trace mode; switch to  enable  ClusterShell.MsgTree
59              trace  mode,  all keys/nodes being kept for each message element
60              of the tree, thus allowing special output gathering
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62       --color=WHENCOLOR
63              clush can use NO_COLOR, CLICOLOR and CLICOLOR_FORCE  environment
64              variables.  --color  command line option always takes precedence
65              over environment variables. NO_COLOR takes precedence over  CLI‐
66              COLOR_FORCE  which takes precedence over CLICOLOR. --color tells
67              whether to use ANSI colors to  surround  node  or  nodeset  pre‐
68              fix/header with escape sequences to display them in color on the
69              terminal. WHENCOLOR is never, always or auto (which use color if
70              standard  output  refers  to  a  terminal). Color is set to [34m
71              (blue foreground text) and cannot be modified.
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73       --diff show diff between gathered outputs
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EXIT STATUS

76       An exit status of zero indicates success of the clubak command.
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EXAMPLES

79       1. clubak can be used to gather some recorded clush(1) results:
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81       Record clush(1) results in a file:
82              # clush -w node[1-7] uname -r >/tmp/clush_output
83              # clush -w node[32-159] uname -r >>/tmp/clush_output
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86       Display file gathered results (in line-mode):
87              # clubak -bL </tmp/clush_output
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90       2. Another example, iterate over node* text files in current  directory
91          and gather characters count for all of them:
92             # find -name "node*" -exec wc -c {} ; | awk '{ gsub("./","",$2); print $2": "$1 }' | clubak -bL
93             node[1,3]: 7
94             node2: 9
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SEE ALSO

98       cluset(1), clush(1), nodeset(1), groups.conf(5).
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100       http://clustershell.readthedocs.org/
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BUG REPORTS

103       Use the following URL to submit a bug report or feedback:
104              https://github.com/cea-hpc/clustershell/issues
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AUTHOR

107       Stephane Thiell <sthiell@stanford.edu>
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110       GNU Lesser General Public License version 2.1 or later (LGPLv2.1+)
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1151.8.4                             2021-11-03                         CLUBAK(1)
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