Commands by swarzynski

Commands by swarzynski (10)

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Find non-ASCII and UTF-8 files in the current directory
This is sample output - yours may be different.
1

find . -type f -regex '.*\.$cpp\|h$' -exec file {} + | grep "UTF-8\|extended-ASCII"

swarzynski · 2020-09-15 09:10:02 36
Replace lines in files with only spaces/tabs with simple empty line (within current directory - recursive)
This is sample output - yours may be different.
0

find . -type f -regex '.*\.$cpp\|h$' -exec sed -i 's/^[[:blank:]]\+$//g' {} +

swarzynski · 2020-09-15 09:07:08 25
Make mirror of ftp directory
This is sample output - yours may be different.
0

wget -m --ftp-user=root --ftp-password=pass -A "*.csv" -nd -P "dirname" ftp://46.46.46.46/../mnt/sd/

swarzynski · 2016-08-31 10:59:07 0
Resize all images in folder
This is sample output - yours may be different.
0

mogrify -resize 25% *.jpg

swarzynski · 2016-06-10 18:14:08 0
Check syntax of remote ruby file
This is sample output - yours may be different.
1

wget --quiet 'https://raw.githubusercontent.com/rahult/books/master/well_grounded_rubyist/threads/rps.rb' - | ruby -c

swarzynski · 2016-02-18 11:14:55 1
Copy all files in subfolders to one folder
This is sample output - yours may be different.
0

find . -type f -exec cp '{}' /path/to/all/folder \;

swarzynski · 2015-12-17 18:04:40 0
Search for files with non-Unix line endings
This is sample output - yours may be different.
0

egrep -l $'\r'\$ *

swarzynski · 2015-11-19 10:57:47 0
Run 'tail' on selected files in current directory
This is sample output - yours may be different.
0

for i in *.csv; do tail $i; done

swarzynski · 2015-11-19 10:07:59 0
Merge files in current directory
This is sample output - yours may be different.
0

find . -type f -name '*.csv' -exec cat {} + >> merged.csv

swarzynski · 2015-11-19 10:06:21 0
Rename selected files in the directory using ruby
This is sample output - yours may be different.
0

ruby -e 'Dir.glob("*.txt") { |f| File.rename(f,f.gsub("_t","")) }'

swarzynski · 2015-11-19 09:59:47 0

What's this?

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find co-ordinates of a location

Just add this to your .bashrc file. Use quotes when query has multiple word length.

Create the authorization header required for a Twitter stream feed

This is the FOURTH in a set of five commands. Please see my other commands for the previous three steps. This command builds the authorization header required by Twitter. For this command to work, see my previous 3 commands (step1, step2 and step3) as they are required to build the environment variables used in this command. For more information on the authorization header, go to dev.twitter.com/apps, click on any of your apps (or create a new one) and then click on the "OAuth Tool" tab.

Compute the average number of KB per file for each dir

Shorter version using --tag

I finally found out how to use notify-send with at or cron

You can write a script that does this : $remind []

Look for English words in /dev/urandom

Little faster alternative.

Display any tcp connections to apache

Sometimes apache will get stuck in an established state where you can't get a list of the connecting IP's from mod_status... not a good thing when you need to ban an abusive ip.

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

Get full directory path of a script regardless of where it is run from

Also resolves symlinks, showing the full path of the link target

list block devices

Shows all block devices in a tree with descruptions of what they are.

Show a passive popup in KDE

Display a passive popup during seconds. Additionnaly, --title can be used to set the title of the popup. This is a nice way to communicate with a desktop user of a machine you have an SSH access on : DISPLAY=:0 sudo -u $user -H kdialog --passivepopup "Hello you" 10 --title "cli IM"

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