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Posted on December 8, 2022December 8, 2022 Random Thoughts

* (asterisk intended)

This is a sentence*. (I promise it’s safe to click up there – you’ll enjoy it.)

Posted on March 18, 2022March 18, 2022 Linux Shell Scripting Software Development SysAdmin

Increasing / decreasing number of xargs parallel processes (at run time!)

xargs makes it very easy to quickly run a set of similar processes in parallel – but did you know when you’re half-way through a...

Posted on October 13, 2021October 13, 2021 Software Development

Vim sub-replace-special – ampersands in substitute search/replace

Curious… While editing in vim you want to search and replace including a sub-string with an ampersand (&) – this doesn’t have an special regular...

Posted on November 25, 2020November 25, 2020 Linux Shell Scripting Software Development SysAdmin

stdbuf – Run COMMAND, with modified buffering operations for its standard streams

While piping together commands that only output intermittently we run into the pipe buffers created by the pipe() system call (also see overview of pipes...

Posted on October 13, 2020 Linux MacOS MS Windows SysAdmin

Disk Usage

To review disk usage recursively – a few different options exist (when scanning manually through with df and du are not enough). I have found...

Posted on October 13, 2020 Linux SysAdmin

md (software RAID) and lvm (logical volume management)

md Building a RAID array using mdadm – two primary steps: “mdadm –create” to build the array using available resources “mdadm –detail –scan” to build...

Posted on October 13, 2020October 13, 2020 Linux SysAdmin

Supporting old Debian distros

For old servers that need to stay that way (for whatever reason) updates are no longer available but you can access the packages that were...

Posted on September 6, 2020September 6, 2020 Python Software Development

A quick start for Python decorators

Synopsis #!/usr/bin/env python3 import shutil # Decorator which pre-checks the space in /tmp # and throws an exception if the space is more than #...

Posted on September 6, 2020September 6, 2020 Python Software Development

PyCon(line) AU 2020 Rube Codeberg competition

This is for fun, for silliness and for do not use anywhere-ness – or to quote the instructions: If you’ve ever wondered just how egregious...

Posted on September 4, 2020September 4, 2020 AWS SysAdmin

A tale of two burst balances (AWS EC2 and EBS performance)

When using and monitoring AWS for EC2 instances and their attached EBS volumes there are a couple of very important metrics to keep an eye...

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Recent Posts

  • * (asterisk intended)
  • Increasing / decreasing number of xargs parallel processes (at run time!)
  • Vim sub-replace-special – ampersands in substitute search/replace
  • stdbuf – Run COMMAND, with modified buffering operations for its standard streams
  • Disk Usage

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