aksh/cs-os-debuntu.md

• GRUB
• CONFIG
• DEB Packages
  • PPA
• BASH SHELL
  • Bash Scripting
  • Julia
• Kernel-HDD
  • ISO
• REGEX
• General
• UTILITIES
  • LaTeX
  • ARBTT
  • Backups
  • Spreadsheets
• Resources

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DNS

• http://www.thekelleys.org.uk/dnsmasq/doc.html
• https://hackercodex.com/guide/how-to-stop-isp-dns-server-hijacking/
• http://askubuntu.com/questions/708762/redirecting-to-http-domain-error-com
• dont use opendns : http://www.cyberciti.biz/tips/opendns-sucks.html

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GRUB

• https://help.ubuntu.com/community/DataRecovery

grub rescue mode

• grub rescue, https://www.howtoforge.com/tutorial/repair-linux-boot-with-grub-rescue/
• How to Rescue a Non-booting GRUB 2 on Linux, https://www.linux.com/learn/tutorials/776643-how-to-rescue-a-non-booting-grub-2-on-linux/
• https://www.linux.com/learn/tutorials/809671-get-your-data-back-with-linux-based-data-recovery-tools
• https://www.howtoforge.com/tutorial/repair-linux-boot-with-grub-rescue/
  • Basic Commands: https://www.howtoforge.com/tutorial/repair-linux-boot-with-grub-rescue/#basic-commands-available
• http://www.cgsecurity.org/wiki/TestDisk
• http://askubuntu.com/questions/142300/fixing-grub-error-error-unknown-filesystem/179662#179662
• http://askubuntu.com/questions/493826/grub-rescue-problem-after-deleting-ubuntu-partition
• HOWTO : Boot & Install Ubuntu from the Grub Rescue Prompt
• http://www.supergrubdisk.org/
• https://help.ubuntu.com/community/Grub2/Troubleshooting
• http://itsfoss.com/solve-error-partition-grub-rescue-ubuntu-linux/
• Recovering a deleted partition table: http://tldp.org/HOWTO/Partition/recovering.html

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CONFIG

• Stow: https://www.gnu.org/software/stow/
• http://en.wikipedia.org/wiki/Category:Configuration_files
• http://en.wikipedia.org/wiki/INI_file

Config-Git

• https://stackoverflow.com/questions/21249071/where-do-you-store-your-gitconfig-file
• https://stackoverflow.com/questions/11786623/cant-hard-link-the-gitconfig-file

INI-RC-YAML

• https://stackoverflow.com/questions/5014632/how-can-i-parse-a-yaml-file-from-a-linux-shell-script
  • https://gist.github.com/pkuczynski/8665367
• screenrc, http://www.softpanorama.org/Utilities/Screen/screenrc_examples.shtml

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DEB Packages

• DPKG cheat sheet: http://www.cyberciti.biz/howto/question/linux/dpkg-cheat-sheet.php
• Syntax Description Example
• dpkg -i {.deb package} Install the package dpkg -i zip_2.31-3_i386.deb
• dpkg -i {.deb package} Upgrade package if it is installed else install a fresh copy of package dpkg -i zip_2.31-3_i386.deb
• dpkg -R {Directory-name} Install all packages recursively from directory dpkg -R /tmp/downloads
• dpkg -r {package} Remove/Delete an installed package except configuration files dpkg -r zip
• dpkg -P {package} Remove/Delete everything including configuration files dpkg -P apache-perl
• dpkg -l List all installed packages, along with package version and short description dpkg -l ; dokg -l | less ; dpkg -l 'apache' ; dpkg -l | grep -i 'sudo'
• dpkg -l {package} List individual installed packages, along with package version and short description dpkg -l apache-perl
• dpkg -L {package} Find out files are provided by the installed package i.e. list where files were installed dpkg -L apache-perl ; dpkg -L perl
• dpkg -c {.Deb package} List files provided (or owned) by the package i.e. List all files inside debian .deb package file, very useful to find where files would be installed dpkg -c dc_1.06-19_i386.deb
• dpkg -S {/path/to/file} Find what package owns the file i.e. find out what package does file belong dpkg -S /bin/netstat dpkg -S /sbin/ippool
• dpkg -p {package} Display details about package package group, version, maintainer, Architecture, display depends packages, description etc dpkg -p lsof
• dpkg -s {package} | grep Status Find out if Debian package is installed or not (status) dpkg -s lsof | grep Status

PPA

Adding PPA's

1. Add a PPA using APT in terminal by typing the following command: sudo add-apt-repository ppa:PPA_Name/ppa

Removing PPA's

1. Remove a PPA using APT in terminal by typing the following command: sudo add-apt-repository --remove ppa:PPA_Name/ppa
2. Remove a PPA from the source list, else it will get pulled when you update the system.
   • First, find where these PPAs are stored by listing all the PPAs added in your system: sudo ls /etc/apt/sources.list.d.
   • Then remove the PPA using the following command: sudo rm -i /etc/apt/sources.list.d/PPA_Name.list
3. Remove a PPA by using ppa-purge in terminal - What about the applications installed using PPAs? Will they be removed as a result of removing the PPA? The answer is NO. So, we use PPA purge to remove the PPA and uninstall all the programs installed by the PPA.
   • Install ppa-purge with this command: sudo apt-get install ppa-purge
   • Then use it to purge the PPA: sudo ppa-purge ppa-url {{The URL of the PPA can be found in the Software Sources list.}}

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BASH SHELL

• Shells compared: http://hyperpolyglot.org/unix-shells
• https://en.wikipedia.org/wiki/List_of_Unix_commands
• ctypes.sh :: A BASH plugin that provides a foreign function interface directly in your shell. In other words, it allows you to call routines in shared libraries from within bash.
• https://stribika.github.io/2015/01/04/secure-secure-shell.html
• What is the difference between executing a bash script and sourcing a bash script?, http://superuser.com/questions/176783/what-is-the-difference-between-executing-a-bash-script-and-sourcing-a-bash-scrip

Bash Scripting

• https://help.ubuntu.com/community/Beginners/BashScripting
• http://stackoverflow.com/questions/106387/is-it-possible-to-detect-32-bit-vs-64-bit-in-a-bash-script
• http://stackoverflow.com/questions/394230/detect-the-os-from-a-bash-script

Julia

• http://stackoverflow.com/questions/30586740/julia-command-line-running-processes-in-parallel
• http://blog.leahhanson.us/running-shell-commands-from-julia.html
• http://julialang.org/blog/2012/03/shelling-out-sucks/
• http://julialang.org/blog/2013/04/put-this-in-your-pipe/
  
• https://www.reddit.com/r/Julia/comments/2ph74u/interacting_with_shell/

Zsh

• https://www.quora.com/What-is-the-difference-between-bash-and-zsh
• https://github.com/robbyrussell/oh-my-zsh
• http://code.joejag.com/2014/why-zsh.html

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Kernel-HDD

• http://www.brendangregg.com/perf.html
• Initramfs, https://en.wikipedia.org/wiki/Initramfs

ISO

• http://releases.ubuntu.com/
• Ubuntu iso via wget, https://askubuntu.com/questions/305304/download-13-04-iso-with-wget
• 64-bit Vs. 32-bit, https://superuser.com/questions/238112/what-is-the-difference-between-i686-and-x86-64

Ubuntu Cloud Snappy

• https://askubuntu.com/questions/620996/how-to-install-snappy-ubuntu-15-04-core-images-on-a-pc
• http://www.ubuntu.com/cloud/tools/snappy
• https://wiki.ubuntu.com/Core

multiboot iso

• SARDU, http://www.howtogeek.com/howto/39880/how-to-combine-rescue-disks-to-create-the-ultimate-windows-repair-disk/
• MultiCD, https://github.com/IsaacSchemm/MultiCD
  • http://multicd.us/#Instructions
• https://askubuntu.com/questions/46624/how-to-create-a-bootable-usb-with-multiple-iso-images-in-it
• https://ubuntuforums.org/showthread.php?t=1071869

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REGEX

• RegEX cheatsheet, https://remram44.github.io/regex-cheatsheet/regex.html
• http://en.wikipedia.org/wiki/List_of_Unix_commands
• http://stackoverflow.com/questions/16956810/finding-all-files-containing-a-text-string-on-linux?rq=1
• https://en.wikipedia.org/wiki/Regular_expression#Syntax
• http://www.theunixschool.com/2012/07/find-command-15-examples-to-exclude.html

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General

• List Open Files for Process, http://www.cyberciti.biz/faq/howto-linux-get-list-of-open-files/
• http://askubuntu.com/questions/240857/what-commands-will-change-my-screens-brightness
• Installing Image Magick on Ubuntu 14.04
• https://github.com/ewiger/findtools

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UTILITIES

Arbtt

desktop timetracker

• https://www.joachim-breitner.de/blog/336-The_Automatic_Rule-Based_Time_Tracker
• http://arbtt.nomeata.de/#how
• Install : http://arbtt.nomeata.de/#install
• Sample Categorize :: http://darcs.nomeata.de/arbtt/categorize.cfg
• http://stackoverflow.com/questions/20973590/arbtt-nested-if-then-else-in-categorize-cfg/20973950#20973950
• https://wiki.haskell.org/Unicode-symbols
• http://darcs.nomeata.de/arbtt/doc/users_guide/arbtt-stats.html#idp213048

Backups

• attic :: Deduplicating backup program. Docs.
• https://github.com/xolox/python-rotate-backups
• BakThat : https://github.com/tsileo/bakthat {Status : UnMaintained}
• rsync, http://www.mikerubel.org/computers/rsync_snapshots/

• storelet : https://pypi.python.org/pypi/storelet

• http://stackoverflow.com/questions/123198/how-do-i-copy-a-file-in-python

• http://stackoverflow.com/questions/3207219/how-to-list-all-files-of-a-directory-in-python

• http://codereview.stackexchange.com/questions/49351/python-back-up-script

LaTeX

• Prof. Edward R. Scheinerman's resources to "Learn LaTeX".
• http://tex.stackexchange.com/questions/8374/the-key-to-understanding-the-latex-syntax
• latex for MATH: http://en.wikibooks.org/wiki/LaTeX/Mathematics
• LaTeX tutorial : http://www.pages.drexel.edu/~pyo22/students/latexRelated/latexTutorial.html
• http://latex-project.org/intro.html

Spreadsheets

• roo :: an interface to spreadsheets of several sorts.

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Resources

• https://help.ubuntu.com/community/SoftwareManagement
• https://github.com/aleksandar-todorovic/awesome-linux/