Author:
erics, December 3rd, 2020
Problem While running the aws cli command from a Perl async command inside apid, I go the following error:
|
|
IOError: [Errno 10] No child processes |
Solution The issue turned out to be a bug in Python2.7, so I upgraded to Python3.4, then uninstalled and re-installed the aws cli software so that it used the proper Python34 version. Procedure
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 |
sudo -i cd ## Upgrade Python yum install python34 alternatives --config python ## "Uninstall" old aws cli mv /opt/aws /opt/aws.fcs cd /usr/bin/ mv aws aws.fcs mv aws_completer aws_completer.fcs ## Install new aws cli curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip" unzip awscliv2.zip ./aws/install -i /opt/aws -b /usr/bin /usr/bin/aws --version |
https://docs.aws.amazon.com/cli/latest/userguide/install-cliv2-linux.html […]
Categories: How-To's, Technology Tags: alternatives, API, apid, AWS, aws cli, AWS Linux, Broken, cli, Cloudformation, Command, Curl, Error, Exec, Execute, howto, IOError, Linux, No child processes, perl, Python, Python27, Python34, tips, Yum
| 
No comments
Author:
erics, November 2nd, 2020
|
|
clear; printf '\e[3J' && log show --predicate 'subsystem == "com.apple.TimeMachine"' --info --last 24h | grep -F 'eMac' | grep -Fv 'etat' | awk -F']' '{print substr($0,1,19), $NF}' |
Categories: How-To's, Technology Tags: cli, Extract, howto, Log, Logs, Script, Shell, Terminal, Time Machine, tips, view
| No comments
Author:
erics, January 30th, 2020
Recently, I wanted to see the “origin” of the git repository I was working in. The command is: git remote -v For example:
|
|
theUser@theHost$ git remote -v origin git@localhost:/volumes/data/git/thePlugin.git (fetch) origin git@localhost:/volumes/data/git/thePlugin.git (push) |
Categories: How-To's, Technology Tags: cli, Command, Display, git, git remote, howto, Linux, Show, tips
| No comments
Author:
erics, January 24th, 2020
If you are unable to update a plugin via the WP admin console, then you can do the update manually. Download the zip file to your local hard drive and extract it. Then, from the command line, do the test run first:
|
|
cd {extracted_plugin_directory} rsync -av --dry-run --delete ../{extracted_plugin_directory}/ theHost:/volumes/www/theSite/wordpress/wp-content/plugins/{extracted_plugin_directory}/ |
*Make sure to use the trailing slashes with rsync for proper operation […]
Categories: How-To's, Technology Tags: cli, Download, Error, Extract, Fail, howto, Manual, Plugin, rsync, Terminal, tips, update, WordPress, zip
| No comments
Author:
erics, July 16th, 2019
Tungsten Clustering provides high availability, disaster recovery, and a host of other benefits for MySQL / MariaDB / Percona Server databases. In this blog post we will explore some of the shell aliases I use every day to administer various Tungsten Clusters.
Categories: Mastering Tungsten Clustering, Monitor Tags: Aliases, bash, cli, Command, Command line, HA, High Availability, monitoring, mysql, Tungsten
| Comments Off on Slick Command-Line Tricks for a Tungsten MySQL / MariaDB Database Cluster
Author:
erics, February 4th, 2019
Use the ssh-keygen command on a computer to which you’ve downloaded your private key .pem file; for example: First, ensure permissions will allow ssh-keygen to work: chmod 600 /path/to/the/file/your-key-pair.pem Then generate an RSA public key: ssh-keygen -y -f /path/to/the/file/your-key-pair.pem > your-key-pair.pub
Categories: How-To's, Technology Tags: .pem, .pub, Amazon, apple, AWS, cli, howto, key, key-pair, KeyPair, Linux, Mac, MacOS, macosx, Pubkey, public, Public Key, ssh-keygen, tips
| No comments
Author:
erics, September 27th, 2018
There are many things to configure in Nagios, especially when using custom check commands. Recently I needed to configure all of the Continuent Clustering Nagios checks. Once setup on the database side, I wanted to confirm that everything was working. Basics: Run a Remote NRPE Check To test a remote NRPE client command from a […]
Categories: How-To's, Technology Tags: cli, Clustering, Command, Command line, Continuent, Disaster REcovery, DR, HA, High Availability, howto, mysql, nagios, NRPE, Test, tips
| No comments
Author:
erics, May 7th, 2018
h Shows you a screenful of message headers (a “header” being the number, sender, date, size and subject). h with no message number shows the current screenful of messages (the number that make up a screenful is set with the screen variable, described below). h$ shows you the last screenful of messages — which is […]
Categories: How-To's, Technology Tags: cli, CLI Mail, howto, Linux, mail, Move, tips
| No comments
Author:
erics, October 6th, 2017
echo “show stat” | nc -U /var/lib/haproxy/stats | cut -d “,” -f 1,2,5-11,18,24,27,30,36,50,37,56,57,62 | column -s, -t
Categories: How-To's, Technology Tags: cli, Command, Command line, haproxy, howto, Linyx, proxy, socket, Status, tips
| No comments
Author:
erics, February 4th, 2017
Make sure you have Ghostscript installed, then:
|
|
gs -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS="/ebook" -sOutputFile=output.pdf input.pdf |
-dPDFSETTINGS={value} where {value} is one of: /screen – the lowest resolution and lowest file size, fine for viewing on a screen /ebook – mid-range resolution and file size /printer – high-quality setting used for printing PDFs /prepress – high-quality setting used for printing PDFs As always, YMMV…
Categories: How-To's, Technology Tags: Adobe, cli, Command line, Ghostscript, gs, howto, Linux, macosx, PDF, Reduce, Resize, Smaller, tips
| No comments
