BASH Script IPv6 address validation
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Here’s a simple function to validate IPv6 address space within a bash script
Category Archives: Bash
Parallel execution in Bash example
Below is an example I vibe coded up with Grok which provides parallel execution of tasks within Bash 4.3+ and later. It leverages internal bash features as well as external temporary tracking files for output capture. It seems to work … Continue reading
Rsync snapshots / rolling backups
Today I had the task of updating my backup system, for a long time I didn’t bother rolling backups because, well I just didn’t care. However I now wanted to set something up. I remembered long ago that I had … Continue reading
[DUH] expr: syntax error
Um.. well brain dead moment tonight after putting in huge hours last week. echo `expr 2 * 2` expr: syntax error Of course… forgot to escape * 🙂 echo `expr 2 \* 2` 4 Sigh!
Bash: internal time command successful redirect
So today I was struggling with `time’ trying to get it to redirect. Basically what I wanted to do was time the output of a file, then pipe both timing and file output to gzip for compression. After struggling with … Continue reading