Commands by pruneau (0)

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List all files modified by a command
Often you run a command, but afterwards you're not quite sure what it did. By adding this prefix/suffix around [COMMAND], you can list any files that were modified. . Take a nanosecond timestamp: YYYY-MM-DD HH:MM:SS.NNNNNNNNN $ date "+%F %T.%N" . Find any files that have been modified since that timestamp: $ find . -newermt "$D" . This command currently only searches below the current directory. If you want to look elsewhere change the find parameter, e.g. $ find /var/log . -newermt "$D"

convert from hexidecimal or octal to decimal
Bash can accept '0x' and '0' notation for hexidecimal and octal numbers, so you just have to output the values.

Instead of saying RTFM!

Show git log beautifully
Only show a short of important information inline ( include branch info ), and color this log tree.

tcpdump whole packets to file in ascii and hex with ip adresses instead of hostname

Display IP : Count of failed login attempts
The lastb command presents you with the history of failed login attempts (stored in /var/log/btmp). The reference file is read/write by root only by default. This can be quite an exhaustive list with lots of bots hammering away at your machine. Sometimes it is more important to see the scale of things, or in this case the volume of failed logins tied to each source IP. The awk statement determines if the 3rd element is an IP address, and if so increments the running count of failed login attempts associated with it. When done it prints the IP and count. The sort statement sorts numerically (-n) by column 3 (-k 3), so you can see the most aggressive sources of login attempts. Note that the ':' character is the 2nd column, and that the -n and -k can be combined to -nk. Please be aware that the btmp file will contain every instance of a failed login unless explicitly rolled over. It should be safe to delete/archive this file after you've processed it.

Show what PID is listening on port 80 on Linux

Show which programs are listening on TCP and UDP ports
-p Tell me the name of the program and it's PID -l that is listening -u on a UDP port. -n Give me numeric IP addresses (don't resolve them) -t oh, also TCP ports

url shortner using google's shortner api
First get a api key for google url shortner from here https://developers.google.com/url-shortener/ Then replace the API_KEY in the command

send a message to a windows machine in a popup
It will only work if the service NETSEND in the Windows machine is enabled.


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