Check These Out
A Quick variation to the latest commands list with the new-lines skipped. This is faster to read.
PDF files are simultaneously wonderful and heinous. They are wonderful in being ubiquitous and mostly being cross platform. They are heinous in being very difficult to work with from the command line, search, grep, use only the text inside the PDF, or use outside of proprietary products.
xpdf is a wonderful set of PDF tools. It is on many linux distros and can be installed on OS X. While primarily an open PDF viewer for X, xpdf has the tool "pdftotext" that can extract formated or unformatted text from inside a PDF that has text. This text stream can then be further processed by grep or other tool. The '-' after the file name directs output to stdout rather than to a text file the same name as the PDF.
Make sure you use version 3.02 of pdftotext or later; earlier versions clipped lines.
The lines extracted from a PDF without the "-layout" option are very long. More paragraphs. Use just to test that a pattern exists in the file. With "-layout" the output resembles the lines, but it is not perfect.
xpdf is available open source at http://www.foolabs.com/xpdf/
Use it to send raw data to a networked device. Used to interact with relay controller board whose documentation is lost, so use wireshark to sniff the sent data and replayed using the command.
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"
Use tput cols to find the width of the terminal and set it as the minimum field width.
$ sudo apt-get install sl
$ man sl
Colorify colors input by converting the text to a number and then performing modulo 7 on it. This resulting number is used as the color escape code. This can be used to color the results of commands with complex outputs (like "482279054165371") so if any of the digits change, there's a good chance the color will change too. I say good chance because there's only 7 unique colors here, so assuming you were watching random numbers, there would be a 6/7 chance that the color would change when the number changed. This should really only be used to help quickly identify when things change, but should not be the only thing relied upon to positively assert that an output has not changed.
$ rm-but() { ls -Q | grep -v "$1" | xargs rm -r ; }
Add this to your .bashrc file.
Then whenever you need to remove all files/directories but one from present working directory. Run:
$ rm-but
Notes:
1. This doesn't affect the hidden files.
2. Argument is actually as string. And all files/directories having this string in there name are left untouched.
