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Top Forums Shell Programming and Scripting Find a text and if condition matches then replace it Post 303022870 by singhhe on Saturday 8th of September 2018 07:49:20 PM
Old 09-08-2018
We run maintenance

We need to run maintenance on servers listed in the text files. I need to be able to have the file automatically change the text file (to a new list of servers) ever week.
The servers are in week1..., week2... and so on.
So basically my aim is to have the server rotate the list of servers going formaintenance every week.

------ Post updated at 07:49 PM ------

Code:
perl -i -pe 'BEGIN{%id=(1=>2, 2=>3, 3=>4, 4=>1)} s/week(\d)off/week$id{$1}off/g' program.sh

What is program.sh here?
 

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KUMOCTL(1)						      General Commands Manual							KUMOCTL(1)

NAME
kumoctl - show kumofs status SYNOPSIS
kumoctl address[:port=19750] command [options] DESCRIPTION
Show status of kumo-manager and send control commands to kumo-manager. COMMANDS
status show status of the cluster attach attach all new servers and start replace attach-noreplace attach all new servers detach detach all fault servers and start replace detach-noreplace detach all fault servers replace start replace without attach/detach full-replace start full-replace (repair consistency) backup [suffix=20090304] create backup with specified suffix enable-auto-replace enable auto replace disable-auto-replace disable auto replace STATUS
hash space timestamp The time that the list of attached kumo-servers is updated. It is updated when new kumo-server is added or existing kumo-server is down. attached node The list of attached kumo-servers. (active) is normal node and (fault) is fault node or recoverd but not re-attached node. not attached node The list of recognized but not-attached nodes. AUTO REPLACING
By default, you have to attach new kumo-servers manually using kumoctl command. If the auto replacing is enabled, new kumo-servers are attached automatically. This is experimental feature. EXAMPLE
$ kumoctl mgr1 status $ kumoctl mgr1 attach SEE ALSO
kumo-manager(1). kumoctl July 2009 KUMOCTL(1)
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