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count connections, group by IP and port
netstat has two lines of headers:
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
Added a filter in the awk command to remove them
Useful for checking the number and state of TCP connections.
We can get useful statistics from tcpdump with this simple command.
Thanks "Babak Farrokhi" to teaching me this ;)
Use ps instead of top. But do not use BSD options at all, they are confusing.
Use "s=" or "state=" to show consice process statuses.
this command will install the packages which provides the libraries you need to link with, e.g. when you compile something needs opengl libraries:
gcc -o testgl testgl.c -lGLEW -lGL -lGLU -lglut
you can use `/usr/lib/libGLEW.so /usr/lib/libGL.so /usr/lib/libGLU.so /usr/lib/libglut.so'
... plus do a sort according frequency
Counts the frequency of words in a file
list top committers (and number of their commits) of svn repository.
in this example it counts revisions of current directory.
Your version works fine except for someone who's interested in commands 'sudo' was prefixed to
i.e. in your command, use of sudo appears as number of times sudo was used.
Slight variation in my command peeks into what commands sudo was used for and counts the command
Gives the same results as the command by putnamhill using nine less characters.
This command is primarily going to work on linux boxes.
and needs to be changed, for example