Commands using rm (301)

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Avoiding history file to be overwritten
If histappend options is set in bash, the file .bash_history will not be overwrite and history list is append to it.

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

Install pip with Proxy
Installs pip packages defining a proxy

check open ports without netstat or lsof

Quickly graph a list of numbers
Useful when you've produced a large file of numbers, and want to quickly see the distribution. The value of y halfway along the x axis is the median. Simple! Just create the listOfNumbers.txt file with a number on each line to try it out.

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

Dump an aspell dictionary as a word list

Compress excutable files in place.
The gzexe utility allows you to compress executables in place and have them automatically uncompress and execute when you run them. FYI: You can compress any executable sha-bang scripts as well (py, pl, sh, tcl, etc.).

Speed up the keyboard repeat rate in X server

Create a file of a given size in linux
if the fs support sparse file,using truncate can create sparse file. http://en.wikipedia.org/wiki/Sparse_file

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