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Find the process you are looking for minus the grepped one
Get the PID of a process by name

Blackhole any level zones via dnsmasq
Explanation It creates dnsmasq-com-blackhole.conf file with one line to route all domains of com zones to 0.0.0.0 You might use "address=/home.lab/127.0.0.1" to point allpossiblesubdomains.home.lab to your localhost or some other IP in a cloud.

Reset terminal that has been buggered by binary input or similar

rot13 simple substitution cipher via command line
E.g. Useful for hiding spoilers in reviews, etc.

Create a file server, listening in port 7000
At client side: tar c myfile | nc localhost 7000 ##Send file myfile to server tar c mydir | nc localhost 7000 ## Send directory mydir to server

download a list of urls

read Windows ACLs from Linux
You can read, add, delete and modify Windows permissions from Linux using smbcacls from the smb-client package.

Analyze awk fields
Breaks down and numbers each line and it's fields. This is really useful when you are going to parse something with awk but aren't sure exactly where to start.

Optimal way of deleting huge numbers of files

delete multiple files with spaces in filenames (with confirmation)
ls -Q will show the filenames in quotes. xargs -p rm will print all the filenames piped from ls -Q and ask for confirmation before deleting the files. without the -Q switch, if we have spaces in names, then the files won't be deleted.


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