When your shell script variable isn’t as empty as you think
Shell Scripting & Automation When your shell script variable isn’t as empty as you think Technical Briefing | 7/13/2026 We have all been there. You write a script to cleanup...
Author: Saket Jain
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Stop wondering why curl hangs on internal services
Networking & Firewall (Ss/Netstat/Iptables/Nftables/Curl) Stop wondering why curl hangs on internal services 🧩 The Challenge You’ve got a web service that times out for no reason, but the logs show...
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Stop the journal from drowning your disk
Logging & Journald Stop the journal from drowning your disk 🧩 The Challenge Dealing with a production server that suddenly hits 100% disk usage because journald went rogue and ballooned...
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When your block-level backups are lying to you
Backup, Snapshotting & Disaster Recovery When your block-level backups are lying to you Technical Briefing | 7/13/2026 You set up LVM snapshots or ZFS send streams, verified the transfer, and...
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Stop typing long paths for your deepest config directories
Environment & Shell Customization (Aliases/Functions/.Bashrc) Stop typing long paths for your deepest config directories 🧩 The Challenge Dealing with a deep directory structure like /etc/nginx/sites-available or /var/log/myapp/internal/subfolder makes me want...
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Stop apt from keeping ghost versions of your config files
Package Management (Apt/Dnf/Pacman Internals) Stop apt from keeping ghost versions of your config files 🧩 The Challenge You ever update a system and find a graveyard of old configuration files...
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ZFS arc_max isn’t a silver bullet for your OOM killer woes
Filesystem & Storage (ZFS/Btrfs/LVM) ZFS arc_max isn’t a silver bullet for your OOM killer woes Technical Briefing | 7/13/2026 You probably set zfs_arc_max when you first provisioned your storage server,...
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Stop fighting overquoted command line arguments
Shell Scripting / Bash Tricks Stop fighting overquoted command line arguments 🧩 The Challenge You finally write a script that needs to pass a command with flags into an SSH...
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Ditch Cron for Systemd Timers to Stop Missing Execution Windows
Cron & Task Scheduling (Cron/Systemd Timers/At) Ditch Cron for Systemd Timers to Stop Missing Execution Windows 🧩 The Challenge You ever have a cron job that runs at 3 AM...
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Stop hardcoding your shell script exit codes
Shell Scripting & Automation Stop hardcoding your shell script exit codes Technical Briefing | 7/12/2026 You probably have a script somewhere that runs a chain of commands, checks a file,...