Commands by qweqq (1)

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diff output of two commands
This only works in bash

RELINK a lot of broken symlinks - FIX broken symlinks after rsync site to new server
After you run this script, you can check status for broken symlink with this command: find -L . -type l

Create a CD/DVD ISO image from disk.

Restore a local drive from the image on remote host via ssh

Generate SHA1 hash for each file in a list
All output is placed in file SHA1SUMS which you can later check with 'sha1sum --check'. Works on most Linux distros where 'sha1sum' is installed.

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Runs a command without hangups.
puts command in background and sends its output to nohup.out file it will not die if you log out fromyour shell session ;-)

Get AWS temporary credentials ready to export based on a MFA virtual appliance
You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

Join lines
awk version of 7210. Slightly longer, but expanding it to catch blank lines is easier: $ awk 'BEGIN{RS="\0"}{gsub(/\n+/,"");print}' file.txt

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


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