EXT – debugfs recursively dump data via rdump (ext3 and ext4 work)
NOTE: works with ext3 and ext4 Just edit the dst1, log1, srcdev1 variables. This will list all of the files and subfolders on the root of srcdev1, and it will launch anRead More…
Systemd – Journalctl & Systemctl CheatSheet
Systemd now brings logging to one swift program called journalctl & service management to a program called systemctl. Starting Stopping Services (before systemd this was done with the “service” command or usingRead More…
Extracting Data From Site with CURL using Login/Authentication & next-episode.net example
Objective: Here I will show you how to extract Data From a Site that requires authentication/login with CURL. As an example, we will extract favorite TV shows schedule from next-episode.net UPDATE 2022-09-07:Read More…
Persistent BASHRC
If you need your BASHRC to always contain certain enteries, but they always get cleared upon reboot or upgrade, then this is for you. First move all of your enteries to aRead More…
LINUX ADVANCED POSIX PERMISSIONS – setuid, setgid, and sticky bit – also – real uid, effective uid and saved uid
PRE-REQ: familiar with chmod and chown & user/group/other & read/write/execute This article will not have many commands, it will just be on concepts. There are plenty of technical command articles all over:Read More…
Sed – Make a backup before running Expression
Lets say you want to run a sed command, but you want it to save a backup before editing a file. Here is how you do that: sed -i.bak -e 'SED EXPRESSIONRead More…
Mount/Initiate to Iscsi Luns Locally – Mount Luns – Mount Partitioned ISOs
Note to self 2022-09-15: if you are looking for a “firmware analyzer” or a tool that finds magic file headers at all locations inside of a file (and looks for embedded files).Read More…
Apt – see how many packages in each repo
When you run apt-get update, it keeps a list of everything in /var/lib/apt/lists/ inside the files that end with “_Packages”. So you can parse the files for lines that begin with theRead More…
Setting UTF8 encoding on putty & linux – What are question mark ??? files
If you see ‘?’ mark files with ‘ls’ or ‘find’, most likely they are different lang chars (chinise,hebrew,japanes,russian) Im not just talking about ?, also im talking about chars like this é ForRead More…
Mdadm Raid10 Pairs
There are 2 ways to RAID10 with mdadm. With 1 layer of mdadm or with 2 layers of mdadm. I would prefer the 1 layer of mdadm (meaning using mdadm level 10Read More…