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Shell Programming and Scripting
List unique values and count instances in .csv file
Post 302609697 by Skrynesaver on Tuesday 20th of March 2012 10:00:14 AM
03-20-2012
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...
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dot is-big 2
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cat sample.csv
ID,Name,no
1,AAA,1
2,BBB,1
3,AAA,1
4,BBB,1
cut -d',' -f2 sample.csv | sort | uniq
this gives only the 2nd column values
Name
AAA
BBB
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LEARN ABOUT DEBIAN
passenger-status
passenger-status(8) Adminstration Commands passenger-status(8) NAME
passenger-status - inspect Phusion Passenger's internal status SYNOPSIS
passenger-status [pid] DESCRIPTION
passenger-status looks at the current status of a Phusion Passenger installation. It will locate Phusion Passenger automatically if it is running and will give you a list of instances if there is more than one Phusion Passenger instance running. You can then select the instance by specifying the relevant PID on the command line. The general information section shows the following details: max The maximum number of application instances that Phusion Passenger will spawn. This equals the value given for PassengerMaxPoolSize in the configuration. count The number of application instances that are currently alive. This value is always less than or equal to max. active The number of application instances that are currently processing requests. This value is always less than or equal to count. inactive The number of application instances that are currently not processing requests, i.e. are idle. Idle application instances will be shutdown after a while, as can be specified with PassengerPoolIdleTime in the configuration. The value of inactive equals count - active. The applications section shows each application instance, which directory it belongs to. The sessions field shows how many HTTP client are currently being processed by that application instance. OPTIONS
pid The process ID of the Phusion Passenger instance you want to look at SEE ALSO
passenger-memory-stats(8), ps(1), top(1) User guide at http://www.modrails.com/documentation.html AUTHOR
Phusion Passenger is written by Phusion (http://www.phusion.nl) "Phusion" and "Phusion Passenger" are trademarks of Hongli Lai & Ninh Bui. This manual page was written by Neil Wilson <neil@brightbox.co.uk> for the Ubuntu project (but may be used by others). Phusion Passenger 2.0 passenger-status(8)