Commands by ctcrnitv

Commands by ctcrnitv (7)

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encode video with constant framerate
This is sample output - yours may be different.
0

ffmpeg -i input.mp4 -vcodec libx264 -crf 30 output.mp4

ctcrnitv · 2018-08-13 23:29:50 459
security find-generic-password -ga "ROUTERNAME" | grep "password:"
This is sample output - yours may be different.
0

access wifi password through terminal (osx)

ctcrnitv · 2018-03-12 06:40:38 25
Remove all node_module folders recursively

makes sure not to skip children nodemodules credit: https://coderwall.com/p/guqrca/remove-all-node_module-folders-recursively
This is sample output - yours may be different.
0

find . -name "node_modules" -type d -prune -exec rm -rf '{}' +

ctcrnitv · 2018-02-10 04:23:36 22
Sync copy directories except (OSX)
This is sample output - yours may be different.
0

rsync -rP --exclude=x source/ target/

ctcrnitv · 2017-08-03 22:08:01 17
check for hanging postgres process (postmaster.pid)

to kill, use `kill PID` Credit: user Craig Ringer on stackexchange.com, recommends to kill the process rather than deleting postmaster.pid when there is an orphan Postgresql server process. Show Sample Output
This is sample output - yours may be different.
```
42356
/usr/local/var/postgres
1485996870
5432
/tmp
localhost
  5432001    131072
```
0

cat /usr/local/var/postgres/postmaster.pid

ctcrnitv · 2017-02-07 02:38:28 19
Recursively delete all files of a specific extension

simulation test to see which files would be deleted: find . -name "*.bak" -type f
This is sample output - yours may be different.
0

find . -name "*.bak" -type f -delete

ctcrnitv · 2017-01-29 00:06:47 18
Recursively unzip archives to their respective folder
This is sample output - yours may be different.
0

find . -name "*.zip" | while read filename; do unzip -o -d "`dirname "$filename"`" "$filename"; done;

ctcrnitv · 2017-01-28 23:58:35 22

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Check for Firewall Blockage.

This is just one method of checking to see if an IP is blocked via IP tables or CSF. Simple and to the point. Replace xx.xx.xx.xx with the IP you wish to check.

Press Any Key to Continue

Halt script progress until a key has been pressed. Source: http://bash-hackers.org/wiki/doku.php/mirroring/bashfaq/065

Using Git, stage all manually deleted files.

-u tells git to automatically stage all changes to files in the index (eg. deleted and modified files). See: http://stackoverflow.com/questions/1402776/how-do-i-commit-all-deleted-files-in-git http://kernel.org/pub/software/scm/git/docs/git-add.html

Print a date from 3 days ago

This command prints the Date (Not time) from 3 days ago (72 hours ago). This works on systems without GNU date (MacOSX , Solaris, FreeBSD).

delete unversioned files in a checkout from svn

Replace multiple file extensions with a single extension

The above is just a prove of concept based around the nested bash substitution. This could be useful in situations where you're in a directory with many filetypes but you only want to convert a few. $ for f in *.bmp *.jpg *.tga; do convert $f ${f%.*}.png; done or you can use ls | egrep to get more specific... but be warned, files with spaces will cause a ruckus with expansion but the bash for loop uses a space delimited list. $ for f in $(ls | egrep "bmp$|jpg$|tga$"); do convert $f ${f%.*}.png; done I'm guessing some people will still prefer doing it the sed way but I thought the concept of this one was pretty neat. It will help me remember bash substitutions a little better :-P

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

What is my ip?

tcpdump top 10 talkers

capture 2000 packets and print the top 10 talkers

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"

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