If you’ve ever tried to install a PHP project and got lost in a jungle of required libraries and versions, you’re not alone. Before Composer, you’d be hunting down zip files, matching versions, and breaking things one by one. After Composer, you type a single command and let it figure out what to download and where to put it. This…
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If you’re staring at a fresh Debian 10 server and wondering why your PHP site just shows a download dialog or a blank page, you’re in the right place. Before: you have a clean server that can maybe ping Google, but it can’t serve a single dynamic page. After: you’ll have a working LAMP stack — Linux, Apache, MariaDB, PHP…
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I still remember the first time I broke SSH on a fresh Ubuntu box. I changed a couple of lines in sshd_config, hit restart, and boom: weird error dump, prompt froze, and I had to reconnect. The server was new, so I thought, “What did I already mess up?” If you’re seeing odd output when restarting SSH, your prompt locks…
Read More »Whenever you start Apache, it keeps crashing with error “semget: No space left on device”. Apacha error_log shows: # tail /etc/httpd/logs/error_log semget: No space left on device semget: No space left on device [Wed Sep 12 10:54:27 2007] [warn] pid file /usr/local/apache/logs/httpd.pid overwritten — Unclean shutdown of previous Apache run? semget: No space left on device [Wed Sep 12 10:56:27…
Read More »Sometimes you need an easy way to count number of lines in a text file. For example, how many lines in a .csv file. Easy: wc -l somefilename.csv You can also count number of characters in a file using “wc”: wc -m somefilename.txt Or number of words: wc -w somefilename.txt Explore the possiblities of “wc”: # wc –help Usage: wc…
Read More »Your default editor is vi and you don’t have time to learn the most powerful Linux editor (vi). Here is how to set your default editor, whether its nano, pico or back to vi. You can set your default editor to pico or nano, its more simple than vi (in my personal opinion). Other case: default editor is vi, but…
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