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…