Maurice Ruckman – Page 11

May 10, 2023

Broken Icon on Ubuntu 22.04 with Parallels

The broken icon seems to be a symptom of Ubuntu and M1.

Refer: https://forum.parallels.com/threads/gear-icon-parallels-shared-clipboard-icon-in-ubuntu-22-04.358588/

I just found that you can work around this issue by disabling Wayland in Ubuntu and use the standard Xorg server that was the default in versions prior to 22.04. There are full instructions here, but you can simply edit the file

sudo gedit /etc/gdm3/custom.conf

and uncomment the line

#WaylandEnable=false

After a restart the gear icon goes away, focus stays in the window you where using when switching desktops, and shared clipboard still works.

May 8, 2023

Split Multiple Lines (Sublime or Visual Studio Code)

The purpose is to select everything and then edit each line.

[Ctrl]+[a]

Visual Studio Code

[Shift]+[Alt]+{I]

Sublime

[Ctrl]+[Shift]+{L]

May 5, 2023

Sublime Repeat Macro

Refer: https://packagecontrol.io/packages/Repeat%20Macro

Sublime has a plug-in to repeat a macro a set number of times or to run it until the end of file.

April 19, 2023

Take a Full Screen Snapshot in Chrome

Refer: https://zapier.com/blog/full-page-screenshots-in-chrome/

[Ctrl]+{Shift}+[I]
[Ctrl]+{Shift}+[P]

Then search for fullscreen snapshot

April 16, 2023April 16, 2023

Visual Studio Code – Delete Duplicate Blank Lines

Refer: https://stackoverflow.com/questions/50042278/visual-studio-code-remove-blank-lines-from-code

Use regular expressions to delete, double-blank lines. [Ctrl]+[H]

Replace this:

^$\n\n

With this:

\n

April 8, 2023

View Crontab Logs

Refer: https://askubuntu.com/questions/56683/where-is-the-cron-crontab-log

On a default installation the cron jobs get logged to

/var/log/syslog

You can see just cron jobs in that logfile by running

grep CRON /var/log/syslog

The above grep will return nohthing if your crontab has not been configured yet.

April 4, 2023

Debugging a Bash Script

Refer: https://tecadmin.net/tutorial/bash-scripting/bash-debugging/

Example – Enable Debug in Script

You can enable debug mode by adding set -xv option inside a shell script. This is useful to enable debugging for some part of the script.

#!/bin/bash
set -xv   # this line will enable debug

cd /var/log/
for i in "*.log"; do
  du -sh $i
done

April 3, 2023

Regex Between Two Strings

cat mobile_errors.txt.txt | grep -o -P '(?<=returned for booking ).*(?= with error code)' | sort | uniq > mobile_error_bookings.txt

The magic of this search is here:

grep -o -P '(?<=beginning string with space at end ).*(?= ending string with space at start of it)

March 30, 2023

RegEx

Visual Studo Code Tricks

Remove Blank Lines

Search for:

^(?:[\t ]*(?:\r?\n|\r))+

Replace with NOTHING.

March 28, 2023March 28, 2023

Extract Email Addresses from a Log File

Refer: https://www.linuxshelltips.com/extract-email-addresses-from-text-file/

Input File: missing_pricing_emails.txt

Grab the email addresses

grep -oe "[a-zA-Z0-9._]\+@[a-zA-Z]\+\.[a-zA-Z]\+" missing_pricing_emails.txt | sort | uniq -c

Or count how many are there

grep -oe "[a-zA-Z0-9._]\+@[a-zA-Z]\+\.[a-zA-Z]\+" missing_pricing_emails.txt | sort | uniq -c | wc -l