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Commands tagged fork bomb (4)

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Fork Bomb for Windows

Quick and dirty forkbomb for all flavors of windows Do not use in production. Replace start with a command of your choice, this will just open a new command prompt and is pretty tricky to stop once started
This is sample output - yours may be different.
4

for /l %a in (0,0,0) do start

Xeeva · 2012-09-25 01:54:43 250
An EXTREMELY powerful fork bomb. You have been warned.

A normal fork bomb looks something like this: _(){ _|_& };_ If you really felt like it, you could even create a devastating little script like this: #!/bin/bash _(){ _|_&&_& };_;:(){ :|:&&:& };:;.(){ .|.&&.& };. Please, for the love of resources, do not run this on a company, school, public, etc machine. Show Sample Output
This is sample output - yours may be different.
```
-bash: fork: Resource temporarily unavailable
-bash: fork: Resource temporarily unavailable
-bash: fork: Resource temporarily unavailable
-bash: fork: Resource temporarily unavailable
-bash: fork: Resource temporarily unavailable
-bash: fork: Resource temporarily unavailable
-bash: fork: Resource temporarily unavailable
```
0

_(){ _|_&&_& };_

thrifus · 2015-11-05 23:20:23 13
Fork Bomb for Windows
This is sample output - yours may be different.
-1

%0 | %0

imjoseangel · 2017-05-17 14:17:01 22
Fork bomb (don't actually execute)

“$0” is a variable returning the name of the script that you call it in — so running “./$0&” twice amounts to the script running itself in a separate process twice. Show Sample Output
This is sample output - yours may be different.
```
#!/bin/bash
./$0&
./$0&
```
-1

echo -e “\x23\x21/bin/bash\n\.\/\$\0\&\n\.\/\$\0\&” > bomb.sh && ./bomb.sh

realkstrawn93 · 2021-04-30 19:33:40 361

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IFS - use entire lines in your for cycles

When you use a "for" construct, it cycles on every word. If you want to cycle on a line-by-line basis (and, well, you can't use xargs -n1 :D), you can set the IFS variable to .

Find the package that installed a command

Rename files in batch

run command on a group of nodes in parallel

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

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"

Move cursor to end of line

Lists all listening ports together with the PID of the associated process

The PID will only be printed if you're holding a root equivalent ID.

bash/ksh function: given a file, cd to the directory it lives

fcd : file change directory A bash function that takes a fully qualified file path and cd's into the directory where it lives. Useful on the commadline when you have a file name in a variable and you'd like to cd to the directory to RCS check it in or look at other files associated with it. Will run on any ksh, bash, likely sh, maybe zsh.

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Commands tagged fork bomb (4)

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