Tag: Bash

1. Bash as Glue Code Between PHP, SQL, Docker and Git

   Sep 25, 2025

   No single tool masters every aspect of a modern deployment stack. Bash as glue code connects PHP scripts, SQL dump workflows, Docker build chains and Git hooks into one coherent automation system, with robust exit code handling, targeted data forwarding and clear error escalation that surfaces problems early.

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2. Build Simple ETL Pipelines in Bash

   Sep 21, 2025

   Not every data integration needs Airflow, Dagster, or a distributed orchestration system. An ETL pipeline in Bash with clearly separated Extract, Transform, and Load stages, checkpointing, and idempotent runs handles a large share of daily data flows between systems reliably and without additional infrastructure.

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3. Magento Maintenance Scripts in Bash: Deploy, Backup, Cache and Logs

   Sep 7, 2025

   Magento maintenance scripts in Bash make the difference between manual deploy chaos and reliable automation. The right sequence of bin/magento commands, rsync backups, cache flushing and log rotation prevents the errors that creep in when deploy steps are run manually in the wrong order.

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4. Renaming, Moving, Sorting and Cleaning Up Files in Bash

   Sep 3, 2025

   File management tasks are part of everyday automation: sorting hundreds of log files by date, renaming export files to match a naming convention, cleaning up temporary build artifacts. With the right mv patterns, rename for bulk renaming and find for sorting and filtering, these tasks can be solved safely, traceably and reversibly.

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5. File Sizes, Checksums and Integrity: Automated Verification

   Aug 23, 2025

   File integrity is not a one time check at deployment, it needs to be monitored continuously and automatically. With checksums, find size filters and clever duplicate detection, you can reliably catch tampering, transfer errors and unwanted file changes in Bash before they cause damage in production.

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6. Building Progress Bars in Bash From Scratch

   Aug 22, 2025

   A progress bar makes a long batch script visible instead of feeling frozen. This article shows how a progress bar emerges with pure Bash, from a simple percent display through carriage return and ANSI colors to dynamic terminal width and ETA estimation, with no extra package at all.

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7. Unit Tests for Bash Functions: Writing and Structuring Them

   Aug 21, 2025

   Anyone who writes Bash scripts as a monolithic block can hardly test them in any meaningful way. Only splitting the script into pure, isolated functions makes unit tests for Bash possible in the first place, and with bats-core you can check return values, stdout and error paths just as structured as in any other programming language.

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8. Streaming Logs and Files in Real Time

   Jul 30, 2025

   Anyone who waits for a nightly cron job to tally up the error count loses valuable reaction time. Streaming logs in real time with tail -f, inotifywait, and while read turns passive log files into active monitoring sources, with instant alerting, safe aggregation, and traceable pipelines built directly in Bash.

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9. Using Bash Coprocesses in Practice

   Jul 30, 2025

   Anyone restarting an external command thousands of times inside a loop is wasting runtime on repeated process startup. A coprocess keeps exactly one such command alive permanently in the background and lets the shell talk to it in both directions over two file descriptors, instead of spawning a new child process for every single request.

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10. Truly Understanding Pipes, Redirects and File Descriptors

    Jul 29, 2025

    Most shell developers know | grep and 2>&1, but few truly understand the complete file descriptor model that sits underneath. Once you understand it, you write I/O redirections without mistakes, use exec for persistent redirection, and combine tee, here-docs and here-strings elegantly for complex data flows.

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