Commands by thrifus

Commands by thrifus (3)

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Replace + Find

This version works on OS X (if you have installed `rename`)
This is sample output - yours may be different.
0

find <mydir> -type f -exec rename 's/<string1>/<string2>/g' {} \;

thrifus · 2015-11-19 17:51:13 0
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 0
Bold & Normal Text Variables

Good for use in your ~/.bash_profile or a script. Show Sample Output
This is sample output - yours may be different.
```
echo "${BOLD}This is bold,${NORM} and this is not."
```
0

BOLD=$(tput bold); NORM=$(tput sgr0)

thrifus · 2015-10-12 15:53:12 0

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Swap a file or dir with quick resotre

This lets you replace a file or directory and quickly revert if something goes wrong. For example, the current version of a website's files are in public_html. Put a new version of the site in public_html~ and execute the command. The names are swapped. If anything goes wrong, execute it again (up arrow or !!).

Paste the contents of OS X clipboard into a new text file

Read funny developer comments in the Linux source tree

These are way better than fortune(6).

Create a 5 MB blank file

Useful for testing purposes

Using scapy to get the IP of the iface used to contact local gw (i.e. supposed host IP)

You need python-scapy package

Kill any process with one command using program name

Somtime one wants to kill process not by name of executable, but by a parameter name. In such cases killall is not suitable method.

Read choice from user instantaneously

Usage exaple cmd $echo 'Sure to continue ??'; read -n1 choi; if [ "$choi" = 'y' ] || [ "$choi" = 'Y' ]; then echo -e '\nExecuting..'; else echo 'Aborted'; fi

kill all foo process

Kill all processes with foo in them. Similar to pkill but more complete and also works when there is no pkill command. Works on almost every Linux/Unix platform I have tried.

Get size of terminal

LIST FILENAMES OF FILES CREATED TODAY IN CURRENT DIRECTORY

Then pipe to 'xargs ls' for a familiar listing, possibly using find's -print0 and xarg's -0 options.

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