Server Administration
Deploy a Site With rsync
Deploy a site with rsync and every update becomes one repeatable command that copies only what changed. This tutorial covers -avz over SSH, --exclude…
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Tag: Command Line
Server Administration
Add a Swap File to a Small Server
Add a swap file to a small server and a memory spike stops killing your processes. fallocate reserves the file, mkswap formats it, swapon…
Server Administration
Check Disk, Memory and CPU Usage From the Terminal
Diagnose a struggling Linux server in under a minute with df, du, free and top - which resource is short, and which directory or…
Programming
List Files in a Directory With PHP
Inventory a folder with PHP: match a pattern with glob(), read every entry with scandir(), walk sub-folders with RecursiveDirectoryIterator, then sort by size or…
Database Administration
Export MySQL Query Results to a CSV File
SELECT ... INTO OUTFILE turns any query into a spreadsheet file, written by the server itself. Handle the quoting that keeps embedded commas safe,…
Server Administration
Rotate Logs With logrotate
A log file that grows forever will eventually fill the disk. Write a logrotate config that renames, compresses and expires old copies, test it…