Monday, March 9, 2026

How to run your LLM locally on your laptop/PC/Mac?? #LMStudio

Interact with the locally deployed LLM using the below Python SDK using LM Studio.

Click here for LM Studio Python SDK documentation - https://lmstudio.ai/docs/python

Ollama by Meta is another option for you to run your LLMs locally on your laptop/PC/Mac.

Visit https://ollama.com/ for more details.

Post your questions if any & I shall try to answer.

Follow me on my social media accounts here - https://linktr.ee/krmadhukar

Thursday, February 26, 2026

How to run a command or script at regular intervals in Linux. Any alternative for crontab?

To run a Linux command every 5 seconds, you have a few reliable options depending on what you prefer: watch, a while loop, or using cron (though cron can only go as low as 1 minute).

Here are the best methods 👇

✅ 1. Using `watch` (simplest method)

watch -n 5 <your-command>

Example:

watch -n 5 ls -l

➡️ Runs ls -l every 5 seconds and shows the output updating on screen.

✅ 2. Using an infinite `while` loop

This gives more control, supports complex commands, and works in any shell.

while true; do

<your-command>

sleep 5

done

Example:

while true; do

date

sleep 5

done

✅ 3. Using a one-liner `while` loop

while true; do <your-command>; sleep 5; done

Example:

while true; do curl -I https://example.com; sleep 5; done

🚫 Cron? Not suitable

Cron runs at minimum 1-minute intervals, so it cannot run every 5 seconds.

To run a cron job every 1 minute, you can use the * * * * * syntax in your crontab.

Here’s how to set it up 👇

✅ Step 1: Open the crontab

crontab -e

✅ Step 2: Add a cron entry with 1‑minute interval

Use this format:

* * * * * <your-command>

Example: run a script every minute:

* * * * * /home/user/myscript.sh

Example: append timestamp to a log every minute:

* * * * * echo "$(date)" >> /home/user/time.log

✅ Step 3: Save and exit

If using nano: CTRL + O, then CTRL + X
If using vim: :wq

📝 Tips and Best Practices

1️⃣ Redirect output to avoid cron emails

* * * * * <your-command> >/dev/null 2>&1

2️⃣ Ensure the script is executable

chmod +x /home/user/myscript.sh

3️⃣ Use full paths in cron

Cron runs in a limited environment, so:

❌ Avoid:

python3 script.py

✔️ Use:

/usr/bin/python3 /home/user/script.py

Thursday, January 8, 2026

gdb commands reference guide

Here is a very useful link to the gdb commands reference guide.

Wednesday, November 26, 2025

Termius or macOS Terminal keyboard shortcuts

Termius on Mac uses standard macOS shortcuts along with some specific commands for its unique features like the Command Palette and split view.

General Actions

Action	Shortcut
Command Palette (access tabs/hosts)	`Command-K`
Jump between tabs	`Command-J`
New connection/tab	`Command-T`
Open local terminal	`Command-L`
Open side panel (snippets/history)	`Command-S`
Split window into two panes	`Command-D`
Close split pane	`Shift-Command-D`
Close tab	`Command-W`

Terminal Navigation & Text Editing (Standard Unix/Mac)

These shortcuts are standard for most command-line interfaces on macOS and work in Termius:

Go to beginning of line: Control-A
Go to end of line: Control-E
Delete from cursor to beginning of line: Control-U
Delete from cursor to end of line: Control-K
Navigate by word: Option-Left Arrow or Option-Right Arrow
Reverse search command history: Control-R
Autocomplete directory/file name: Tab (type characters, then press Tab once or twice)
Send break (equivalent to Ctrl-C in shell): Command-. (period)