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Query cheat.sh from the termianl. A quick access cheat sheet for a range of linux commands!

Decreasing the cdrom device speed
Decreasing the cdrom device speed may be more comfortable to watch films (for example)

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Use the builtin ':' bash command to increment variables
I just found another use for the builtin ':' bash command. It increments counters for me in a loop if a certain condition is met... : [arguments] No effect; the command does nothing beyond expanding arguments and performing any specified redirections. A zero exit code is returned.

find duplicate messages in a Maildir
# find assumes email files start with a number 1-9 # sed joins the lines starting with " " to the previous line # gawk print the received and from lines # sort according to the second field (received+from) # uniq print the duplicated filename # a message is viewed as duplicate if it is received at the same time as another message, and from the same person. The command was intended to be run under cron. If run in a terminal, mutt can be used: mutt -e "push otD~=xq" -f $folder

Display ncurses based network monitor
Nload is part of nload package, tested under Debian. Nload display network bandwidth statistics, -u m options stands for MBit unit measure.

Concatenate (join) video files
Use mencoder to concatenate (join) multiple video files together.

Finds all files from / on down over specified size.
Very useful for finding all files over a specified size, such as out of control log files chewing up all available disk space. Fedora Core x specific version.

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Find usb device in realtime
Using this command you can track a moment when usb device was attached.


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