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Top Forums Shell Programming and Scripting Take a list if strings from a file and search them in a list of files and report them Post 302543282 by realspirituals on Saturday 30th of July 2011 02:00:01 PM
Old 07-30-2011
Files are very similar i.e both are in Linux mode. Urgent situation. Please h
 

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Cgroup classifier in tc(8)					       Linux						Cgroup classifier in tc(8)

NAME
cgroup - control group based traffic control filter SYNOPSIS
tc filter ... cgroup [ match EMATCH_TREE ] [ action ACTION_SPEC ] DESCRIPTION
This filter serves as a hint to tc that the assigned class ID of the net_cls control group the process the packet originates from belongs to should be used for classification. Obviously, it is useful for locally generated packets only. OPTIONS
action ACTION_SPEC Apply an action from the generic actions framework on matching packets. match EMATCH_TREE Match packets using the extended match infrastructure. See tc-ematch(8) for a detailed description of the allowed syntax in EMATCH_TREE. EXAMPLES
In order to use this filter, a net_cls control group has to be created first and class as well as process ID(s) assigned to it. The follow- ing creates a net_cls cgroup named "foobar": modprobe cls_cgroup mkdir /sys/fs/cgroup/net_cls mount -t cgroup -onet_cls net_cls /sys/fs/cgroup/net_cls mkdir /sys/fs/cgroup/net_cls/foobar To assign a class ID to the created cgroup, a file named net_cls.classid has to be created which contains the class ID to be assigned as a hexadecimal, 64bit wide number. The upper 32bits are reserved for the major handle, the remaining hold the minor. So a class ID of e.g. ff:be has to be written like so: 0xff00be (leading zeroes may be omitted). To continue the above example, the following assigns class ID 1:2 to foobar cgroup: echo 0x10002 > /sys/fs/cgroup/net_cls/foobar/net_cls.classid Finally some PIDs can be assigned to the given cgroup: echo 1234 > /sys/fs/cgroup/net_cls/foobar/tasks echo 5678 > /sys/fs/cgroup/net_cls/foobar/tasks Now by simply attaching a cgroup filter to a qdisc makes packets from PIDs 1234 and 5678 be pushed into class 1:2. SEE ALSO
tc(8), tc-ematch(8), the file Documentation/cgroups/net_cls.txt of the Linux kernel tree iproute2 21 Oct 2015 Cgroup classifier in tc(8)
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