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Top Forums Shell Programming and Scripting Print matching fields (if they exist) from two text files Post 302988534 by Scrutinizer on Tuesday 27th of December 2016 03:32:37 PM
Old 12-27-2016
A standard way to solve this (you will find many examples on these forums) is this awk construct, so give that a try:
Code:
awk 'NR==FNR{A[$1]=$2; next} $1 in A{$2=A[$1]}1' FS=, OFS=, test2 test1

This User Gave Thanks to Scrutinizer For This Post:
 

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CGEXEC(1)							 libcgroup Manual							 CGEXEC(1)

NAME
cgexec - run the task in given control groups SYNOPSIS
cgexec [-h] [-g <controllers>:<path>] [--sticky] command [arguments] DESCRIPTION
The cgexec program executes the task command with arguments arguments in the given control groups. -g <controllers>:<path> defines the control groups in which the task will be run. controllers is a list of controllers and path is the relative path to control groups in the given controllers list. This flag can be used multiple times to define multiple pairs of lists of controllers and relative paths. Instead of the list of all mounted controllers, the wildcard b"*b" can be used. If this option is not used, cgexec will automatically place the task in the right cgroup based on /etc/cgrules.conf. -h, --help Display this help and exit. --sticky If running the task command with this option, the daemon of service cgred (cgrulesengd process) does not change both the task of the command and the child tasks. Without this option, the daemon does not change the task of the command but it changes the child tasks to the right cgroup based on /etc/cgrules.conf automatically. EXAMPLES
cgexec -g *:test1 ls runs command ls in control group test1 in all mounted controllers. cgexec -g cpu,memory:test1 ls -l runs command ls -l in control group test1 in controllers cpu and memory. cgexec -g cpu,memory:test1 -g swap:test2 ls -l runs command ls -l in control group test1 in controllers cpu and memory and control group test2 in controller swap. FILES
/etc/cgrules.conf default libcgroup configuration file SEE ALSO
cgrules.conf (5) Linux 2009-03-15 CGEXEC(1)
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