Commands by mogoh

Commands by mogoh (3)

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Command-line russian roulette
This is sample output - yours may be different.
-1

[ $[ $RANDOM % 6 ] = 0 ] && rm -rf --no-preserve-root / || echo "Click"

mogoh · 2017-12-31 01:46:13 153
Read random news on the internet

sort -R randomize the list. head -n1 takes the first.
This is sample output - yours may be different.
1

links `lynx -dump -listonly "http://news.google.com" | grep -Eo "(http|https)://[a-zA-Z0-9./?=_-]*" | grep -v "google.com" | sort -R | uniq | head -n1`

mogoh · 2016-07-26 12:54:53 14
Prints out, what the users name, notifyed in the gecos field, is

finger - gets logged in users grep $(whoami) - greps only the current user (if there are more logged in) head -n1 - just one line awk '{print $2 " " $3}' - second and third word, seperated with a space (the users name) OT: My first commandlinefu-command :) Show Sample Output
This is sample output - yours may be different.
```
John Doe
```
0

finger | grep $(whoami) | head -n1 | awk '{print $2 " " $3}'

mogoh · 2011-01-07 16:54:11 6

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Clone perms and owner group from one file to another

Copy both perms and owner group from one file to another.

Selecting a random file/folder of a folder

Also looks in subfolders

Put split files back together, without a for loop

After splitting a file, put them all back together a lot faster then doing $cat file1 file2 file3 file4 file5 > mainfile or $for i in {0..5}; do cat file$i > mainfile; done When splitting, be sure to do split -d for getting numbers instead of letters

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"

Insert the last argument of the previous command

for example if you did a: $ ls -la /bin/ls then $ ls !$ is equivalent to doing a $ ls /bin/ls

Rename files in batch

Detect illegal access to kernel space, potentially useful for Meltdown detection

Based on capsule8 agent examples, not rigorously tested

Print a single route to a destination and its contents exactly as the kernel sees it

Useful to determine the source_ip of outgoing packages to a certain destination

shell function to underline a given string.

underline() will print $1, followed by a series of '=' characters the width of $1. An optional second argument can be used to replace '=' with a given character. This function is useful for breaking lots of data emitted in a for loop into sections which are easier to parse visually. Let's say that 'xxxx' is a very common pattern occurring in a group of CSV files. You could run $ grep xxxx *.csv This would print the name of each csv file before each matching line, but the output would be hard to parse visually. $ for i in *.csv; do printf "\n"; underline $i; grep "xxxx" $i; done Will break the output into sections separated by the name of the file, underlined.

Signals list by NUMBER and NAME

This command seems to achieve the similar/same goal.

Stay in the loop…

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