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Shell Programming and Scripting
Explanation for printf string in awk
Post 302400026 by maxim42 on Tuesday 2nd of March 2010 05:18:04 AM
03-02-2010
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Hi,
Could anyone please explain why we have arr=1 - what does this statement do?
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Hello,
I have recently come across this awk program. Can some one shed some light on what is taking place.
awk '{!a++}END{for(i in a) if ( a >10 ) print a,i }' $FILE
Best Regards,
jaysunn (1 Reply)
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I want to print a string say "str1 str2 str3 str4" using printf.
If I try printing it using printf it is printing as follows.
output
-------
str1
str2
str3
str4
btw I'm working in AIX.
This is my first post in this forum :)
regards,
rakesh (4 Replies)
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Hi All
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....
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130
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Is possible to print padded string in printf?
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001I want
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LEARN ABOUT DEBIAN
ocf_heartbeat_sfex
OCF_HEARTBEAT_SFEX(7) OCF resource agents OCF_HEARTBEAT_SFEX(7) NAME
ocf_heartbeat_sfex - Manages exclusive access to shared storage using Shared Disk File EXclusiveness (SF-EX) SYNOPSIS
sfex [start | stop | monitor | meta-data | validate-all] DESCRIPTION
Resource script for SF-EX. It manages a shared storage medium exclusively . SUPPORTED PARAMETERS
device Block device path that stores exclusive control data. (required, string, no default) index Location in block device where exclusive control data is stored. 1 or more is specified. Default is 1. (optional, integer, default 1) collision_timeout Waiting time when a collision of lock acquisition is detected. Default is 1 second. (optional, integer, default 1) monitor_interval Monitor interval(sec). Default is 10 seconds (optional, integer, default 10) lock_timeout Valid term of lock(sec). Default is 100 seconds. The lock_timeout is calculated by the following formula. .sp lock_timeout = monitor_interval + "The expiration time of the lock" .sp We suggest 90 seconds as a default value of the "The expiration time of the lock", but you should change it in consideration of access delay to the shared disk and the switch time of the multipath driver. .sp The lock timeout have an impact on start action timeout because start action timeout value is calculated by the following formula. .sp start timeout = collision_timeout + lock_timeout + "safety margin" .sp The "safety margin" is decided within the range of about 10-20 seconds(It depends on your system requirement). (optional, integer, default 100) SUPPORTED ACTIONS
This resource agent supports the following actions (operations): start Starts the resource. Suggested minimum timeout: 120s. stop Stops the resource. Suggested minimum timeout: 20s. monitor Performs a detailed status check. Suggested minimum timeout: 10s. Suggested interval: 10s. meta-data Retrieves resource agent metadata (internal use only). Suggested minimum timeout: 5s. validate-all Performs a validation of the resource configuration. Suggested minimum timeout: 5s. EXAMPLE
The following is an example configuration for a sfex resource using the crm(8) shell: primitive p_sfex ocf:heartbeat:sfex params device=string op monitor depth="0" timeout="10s" interval="10s" SEE ALSO
http://www.linux-ha.org/wiki/sfex_(resource_agent) AUTHOR
Linux-HA contributors (see the resource agent source for information about individual authors) resource-agents UNKNOWN 03/09/2014 OCF_HEARTBEAT_SFEX(7)