Commands by bouktin (3)

  • list the top 15 folders by decreasing size in MB

    list the top 15 folders by decreasing size in MB Show Sample Output


    2
    du -xB M --max-depth=2 /var | sort -rn | head -n 15
    bouktin · 2013-05-23 10:45:21 7
  • transform several lines in one with Awk

    remove all carriage return of a given file (or input, if used with | ) and replace them with a space (or whatever character is after %s) Show Sample Output


    -1
    awk ' { printf ("%s ", $0)} END {printf ("\n") } ' FILE
    bouktin · 2011-02-02 11:51:41 7
  • find rcs locked file in a given folder

    find the files locked by rcs utility Show Sample Output


    0
    find /path/to/folder/ -mindepth 1 -maxdepth 2 -name "*,v" -exec sudo rlog -L -R {} \;
    bouktin · 2011-01-13 16:07:42 5

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Find Duplicate Files (based on MD5 hash) -- For Mac OS X
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Salvage a borked terminal
This works in some situations where 'reset' and the other alternatives don't.

Browse system RAM in a human readable form
This command lets you see and scroll through all of the strings that are stored in the RAM at any given time. Press space bar to scroll through to see more pages (or use the arrow keys etc). Sometimes if you don't save that file that you were working on or want to get back something you closed it can be found floating around in here! The awk command only shows lines that are longer than 20 characters (to avoid seeing lots of junk that probably isn't "human readable"). If you want to dump the whole thing to a file replace the final '| less' with '> memorydump'. This is great for searching through many times (and with the added bonus that it doesn't overwrite any memory...). Here's a neat example to show up conversations that were had in pidgin (will probably work after it has been closed)... $sudo cat /proc/kcore | strings | grep '([0-9]\{2\}:[0-9]\{2\}:[0-9]\{2\})' (depending on sudo settings it might be best to run $sudo su first to get to a # prompt)

monitor my process group tree

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Remove duplicate lines whilst keeping empty lines and order
Remove duplicate lines whilst keeping order and empty lines

Delete All Objects From An S3 Bucket Using S3cmd

Recursive find and replace file extension / suffix (mass rename files)
Find recursively all files in ~/Notes with the extension '.md' and pipe that via xargs to rename command, which will replace every '.md' to '.txt' in this example (existing files will not be overwritten).

Detect illegal access to kernel space, potentially useful for Meltdown detection
Based on capsule8 agent examples, not rigorously tested

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