Is there any possibility, that after editing original file, and after process completes, can we replace original with output file, Becoz i have a file of 38 Gb.
I have managed shell script, as i am doing shell scripting first time, i am trying to create a script where file should be deleted after completing the process.
I want to extend command and delete original file and name the new file created same as old one.
Ex.
Code:
sed 's/===*/==/g' inputfile.xml > outputfile.xml && COMMAND_FOR_DELETING_OLD_FILE && \
COMMAND_FOR_RENAMING_NEW_FILE_TO_SAME_AS_OLD_FILE
-Red.
(Becoz which i am working is 38 Gb and my Server dont have much resources, right command will help me.)
Moderator's Comments:
Please use next time code tags for your code and data
Last edited by vbe; 06-22-2012 at 12:06 PM..
Reason: code tags please!
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LEARN ABOUT DEBIAN
cibadmin
PACEMAKER(8) System Administration Utilities PACEMAKER(8)NAME
Pacemaker - Part of the Pacemaker cluster resource manager
SYNOPSIS
cibadmin command [options] [data]
DESCRIPTION
cibadmin - Provides direct access to the cluster configuration.
Allows the configuration, or sections of it, to be queried, modified, replaced and deleted.
Where necessary, XML data will be obtained using the -X, -x, or -p options
OPTIONS
-?, --help
This text
-$, --version
Version information
-V, --verbose
Increase debug output
Commands:
-u, --upgrade
Upgrade the configuration to the latest syntax
-Q, --query
Query the contents of the CIB
-E, --erase
Erase the contents of the whole CIB
-B, --bump
Increase the CIB's epoch value by 1
-C, --create
Create an object in the CIB. Will fail if the object already exists.
-M, --modify
Find the object somewhere in the CIB's XML tree and update it. Fails if the object does not exist unless -c is specified
-P, --patch
Supply an update in the form of an xml diff (See also: crm_diff)
-R, --replace
Recursivly replace an object in the CIB
-D, --delete
Delete the first object matching the supplied criteria, Eg. <op id="rsc1_op1" name="monitor"/>
The tagname and all attributes must match in order for the element to be deleted
-d, --delete-all
When used with --xpath, remove all matching objects in the configuration instead of just the first one
-5, --md5-sum
Calculate the on-disk CIB digest
-6, --md5-sum-versioned
Calculate an on-the-wire versioned CIB digest
-S, --sync
(Advanced) Force a refresh of the CIB to all nodes
-a, --empty
Output an empty CIB
Additional options:
-f, --force
-t, --timeout=value
Time (in seconds) to wait before declaring the operation failed
-s, --sync-call
Wait for call to complete before returning
-l, --local
Command takes effect locally. Should only be used for queries
-c, --allow-create
(Advanced) Allow the target of a -M operation to be created if they do not exist
-n, --no-children
(Advanced) When querying an object, do not return include its children in the result
Data:
-X, --xml-text=value
Retrieve XML from the supplied string
-x, --xml-file=value
Retrieve XML from the named file
-p, --xml-pipe
Retrieve XML from stdin
-A, --xpath=value
A valid XPath to use instead of -o
-o, --scope=value
Limit the scope of the operation to a specific section of the CIB. Valid values are: nodes, resources, constraints, crm_config,
rsc_defaults, op_defaults, status
-N, --node=value
(Advanced) Send command to the specified host
EXAMPLES
Query the configuration from the local node:
# cibadmin --query --local
Query the just the cluster options configuration:
# cibadmin --query --scope crm_config
Query all 'target-role' settings:
# cibadmin --query --xpath "//nvpair[@name='target-role']"
Remove all 'is-managed' settings:
# cibadmin --delete-all --xpath "//nvpair[@name='is-managed']"
Remove the resource named 'old':
# cibadmin --delete --xml-text '<primitive id="old"/>'
Remove all resources from the configuration:
# cibadmin --replace --scope resources --xml-text '<resources/>'
Replace the complete configuration with the contents of $HOME/pacemaker.xml:
# cibadmin --replace --xml-file $HOME/pacemaker.xml
Replace the constraints section of the configuration with the contents of $HOME/constraints.xml:
# cibadmin --replace --scope constraints --xml-file $HOME/constraints.xml
Increase the configuration version to prevent old configurations from being loaded accidentally:
# cibadmin --modify --xml-text '<cib admin_epoch="admin_epoch++"/>'
Edit the configuration with your favorite $EDITOR:
# cibadmin --query > $HOME/local.xml
# $EDITOR $HOME/local.xml
# cibadmin --replace --xml-file $HOME/local.xml
SEE ALSO:
CRM shell, crm(8), crm_shadow(8)AUTHOR
Written by Andrew Beekhof
REPORTING BUGS
Report bugs to pacemaker@oss.clusterlabs.org
Pacemaker 1.1.7 April 2012 PACEMAKER(8)
06-21-2012
