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Advanced python tracing
Trace python statement execution and syscalls invoked during that simultaneously

Sort installed rpms by decreasing size.
It's all said in the title.

grep certain file types recursively
doesn't do case-insensitive filenames like iname but otherwise likely to be faster

Create a self-signed certificate for Apache Tomcat
Must be run as root. The 'tomcat' user must have access to the .keystore file. The key and keystore passwords must be the same. The password must be entered into the server.xml config file for Tomcat.

Write comments to your history.
A null operation with the name 'comment', allowing comments to be written to HISTFILE. Prepending '#' to a command will *not* write the command to the history file, although it will be available for the current session, thus '#' is not useful for keeping track of comments past the current session.

useful tail on /var/log to avoid old logs or/and gzipped files
with discard wilcards in bash you can "tail" newer logs files to see what happen, any error, info, warn...

Listing today’s files only

Find the package that installed a command

reset an hanging terminal session
when your terminal session seems unrensponsive (this normally happen after outputting some binary data directly on your standard output) it may me saned by hitting: CTRL+J tput sgr0 CTRL+J Note: don't press the Enter key, just ctrl+j

Change files case, without modify directories, recursively
Change files case, without modify directories, recursively. ... fucking vfat


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