bash – Page 6 – Türker Yıldırım

systemd-run for a one-off command with a memory limit

NoteJuly 11, 20191 min read

Running a large import by hand and having it take the machine down with the OOM killer is a recurring way to turn a routine task into an…

Rootless containers and the build that stopped needing a daemon

Deep diveJuly 4, 20199 min read

19.03 made BuildKit the default and rootless mode possible. A CI runner where building an image means root on the host is the problem worth naming.

A wp-cli command with a progress bar and an exit code

NoteJune 12, 20192 min read

Anything run more than twice against a site is better as a command than as an admin page with a button, and two details make one people will…

Reindex behind an alias with no downtime

SnippetMay 30, 20191 min read

mktemp -d and a trap, in every script that writes anything

NoteMarch 19, 20191 min read

A predictable temporary path in /tmp is a symlink attack and a collision between two concurrent runs, and both are avoided by the same three lines. Registering the…

Check every hostname in a file for a near-expiry certificate

SnippetFebruary 21, 20191 min read

set -x is a debugger you already have

NoteJanuary 21, 20192 min read

A deploy script that failed silently in the middle is a script nobody can debug from the logs, and the fix is one line rather than a rewrite…

Bumping tested-up-to across a dozen plugins with one script

NoteJanuary 2, 20192 min read

Every WordPress release means editing the same header in every plugin readme, and doing it by hand is how one of them ends up claiming compatibility with a…

certbot –dry-run is the only renewal test that counts

NoteDecember 11, 20181 min read

A renewal timer that has never actually renewed anything is a timer that will fail in sixty days, and the first sign will be a browser warning. The…

Wait for a TCP port before starting a container command

SnippetOctober 24, 20181 min read