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Resolving an rsnapshot error — “rsync: –delete does not work without –recursive (-r) or –dirs (-d). rsync error: syntax or usage error (code 1) at main.c(1795)”

Resolving an rsnapshot error — “rsync: –delete does not work without –recursive (-r) or –dirs (-d). rsync error: syntax or usage error (code 1) at main.c(1795)”

I discovered rsnapshot hadn't run in a few days. Checking /etc/rsnapshot.log, I found every recent day had this: rsync: --delete does not work without --recursive (-r) or --dirs (-d). rsync…
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Post-migration steps when migrating or restoring Linux from backup

Post-migration steps when migrating or restoring Linux from backup

There are intentionally vague broad steps, here just as a reminder to myself; best to look specific instructions for each of these steps up at restore time for the particular…
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Fastest way to delete a large, deep directory in Linux

Fastest way to delete a large, deep directory in Linux

Per numerous references around the web, to delete /path/to/directory-to-delete/: cd /path/to/ mkdir empty_dir rsync -a --delete empty_dir/ directory-to-delete/ rm -r empty_dir rm -r directory-to-delete Disclaimer: this is for my own…
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Web Developer Reference: Comprehensive List of CSS Units
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Web Developer Reference: Comprehensive List of CSS Units

Here’s a guide to all currently available CSS units, with explanations and common use notes. This includes all CSS units listed in MDN Web Docs as of 2025aug15. Sections: By…
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VMWare VM unreachable via IP after reboot, even from host machine

VMWare VM unreachable via IP after reboot, even from host machine

My VWWare VM lost internet connectivity after a reboot. Even the host machine could not access any service on it. Http/https got 523 errors. I powered down the VM, changed…
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Start Here—What is the General Reference Library section?
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What It Is: Start Here—What is the General Reference Library section?

I have always been a dedicated archiver and curator of interesting information: trivia, facts, tidbits, how-tos, items of possible future interest. In the internet age, some of this it makes…
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Reducing rsnapshot or rsync resource usage

Reducing rsnapshot or rsync resource usage

I've had sporadic problems with clearing the WP cache causing the server to return 520 errors for a few minutes. Usually other sites on the same server are fine, it's…
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Force Git to overwrite local changes if there is a branch conflict

Force Git to overwrite local changes if there is a branch conflict

Use code you find here at your own risk! I am not responsible if you damage your data or system by following any instructions you find here. Navigate to your…
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Getting Web Browsers Not To Blur Images on Retina Screens

Getting Web Browsers Not To Blur Images on Retina Screens

Unfortunately this must be set by site, but on retina screens on MacOS, many browsers blur small images, such as 88x31 buttons. You can overcome this, at least for the…
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How to fix if the “Save” button is grayed out in Photoshop CC 2017 save and export dialogs

How to fix if the “Save” button is grayed out in Photoshop CC 2017 save and export dialogs

I don't know if this affects other versions of Photoshop, but on MacOS Photoshop CC 2017 frequently starts unexpectedly graying out all save buttons when you have made changes to…
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AI Policy
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AI Policy

Uses The following are how generative AI is used on this site: 1. Visual Images There are plenty of AI images on this site, enough that you should assume all…
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Links — Mike’s Other Sites & Pages
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Links — Mike’s Other Sites & Pages

More Kupietz for you? Links to Mike's Other Sites & Pages Music & Sounds: GuitaristInProgress on YouTube - my old YouTube channel, mostly me playing sloppy covers on guitar. Once…
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Contact Information
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Contact Information

If you have any questions or concerns, I'm absolutely here to help. To get in touch, come to San Francisco and walk down each street shouting my name. Here's a…
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Filtering LinkedIn Posts, Notifications, and Comments by keyword

Filtering LinkedIn Posts, Notifications, and Comments by keyword

I use the uBlock Origin browser plugin to filter my LinkedIn Posts, Notifications, and Comments to hide anything containing objectionable topics. uBlock Origin allows you to add custom rules to…
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Deactivating, deleting, and completely removing a plugin that WordPress won’t let you deactivate

Deactivating, deleting, and completely removing a plugin that WordPress won’t let you deactivate

I installed the WordPress plugin LWS Optimize, which turned out to be unusably broken (which is the reason I'm not linking to it) and made my site unusable. To make…
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Website returns 503 server errors, but no errors in logs

Website returns 503 server errors, but no errors in logs

Had a weird one today. Last one website of the several of on this server suddenly started returning 503 (service unavailable) errors. There was nothing in the PHP error log…
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Get names of all input fields in a FileMaker Pro table

Get names of all input fields in a FileMaker Pro table

ExecuteSQL ( "SELECT FieldName FROM FileMaker_Fields WHERE TableName='[TABLE NAME]' AND FieldClass='Normal'",",","¶")
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How to monitor RAM for tuning pm.max_children

How to monitor RAM for tuning pm.max_children

How to monitor RAM usage: free -h: This command shows your system's total, used, and free memory in a human-readable format. Key metrics: total: Total RAM. used: RAM currently in…
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Add sar logging for CPU, RAM, and disk I/O

Add sar logging for CPU, RAM, and disk I/O

Add or change /etc/cron.d/sysstat to this. This creates a cron jobe to write file /tmp/outage_resource_log.txt that keeps minute-by-minute stats, sometimes useful in troubleshooting slowdowns. However, it's not a great way…
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Add /fpm-status page to Apache virtual host

Add /fpm-status page to Apache virtual host

Add this to virtual host file in /etc/apache2/sites-available/, right below DocumentRoot, in both :80 and :443 sections SetHandler "proxy:unix:/var/php-fpm/170027027353667.sock|fcgi://127.0.0.1" Require all granted May need in /etc/php/8.2/fpm/pool.d/www.conf, not sure: pm.status_path =…
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View last 200 lines of all access logs on apache server

View last 200 lines of all access logs on apache server

find [path/to/access/logs/folder] -name "*_access_log" -exec sh -c 'tail -200 "$1" | grep -v "HetrixTools\|ok\.txt\|canary" | sed "s/$/ [$(basename "$1" _access_log)]/"' _ {} \; | sort -k4,4 The grep -v "HetrixTools\|ok\.txt\|canary"…
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Linux SQL Tuning Utilities

Linux SQL Tuning Utilities

1. tuning-primer.sh Run from Github: curl -L https://raw.githubusercontent.com/BMDan/tuning-primer.sh/main/tuning-primer.sh | bash 2. MySQLTuner.pl wget http://mysqltuner.pl/ -O mysqltuner.pl wget https://raw.githubusercontent.com/major/MySQLTuner-perl/master/basic_passwords.txt -O basic_passwords.txt wget https://raw.githubusercontent.com/major/MySQLTuner-perl/master/vulnerabilities.csv -O vulnerabilities.csv perl mysqltuner.pl --host 127.0.0.1 --user [user]…
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Social Features will go here… someday
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Pardon My Placeholder...: Social Features will go here… someday

This site started as an archive for my various art projects, previous scattered hither and yon across the web. As I've been working on it, I've come to want to…
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88×31 Website Buttons
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Button Up!: 88×31 Website Buttons

In the spirit of keeping up with the Joneses I've finally created an 88x31 button for those wishing to link to this site. In characteristically have two nearly-identical versions which…
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