A small collection of example Bash scripts used for practice and demos. Organized by day.
- Linux with Bash
- Make scripts executable: chmod +x <script>
From the repository root:
- Make a script executable: chmod +x Day-1/sample-shell-script.sh
- Run: ./Day-1/sample-shell-script.sh
Day 1
- Day-1/first-shell-script.sh — simple hello script.
- Day-1/sample-shell-script.sh — creates a sample folder and two files.
Day 2
- Day-2/getNumberOne.sh — prints several numbers.
- Day-2/loops.sh — examples of for, while, and until loops.
- Day-2/ifelse.sh — if / elif / else demonstration.
- Day-2/nodeHealth.sh — prints system info (disk, memory, CPU). Note: this script demonstrates shell options (
set -e,set -o pipefail,set -x) and includes a deliberately failing/invalid command to show behavior with strict modes enabled.
Day 3
- Day-3/mississippi.sh — counts occurrences of "s" in the word "mississippi".
- Day-3/numDivided.sh — intended to print numbers divisible by 3 or 5 but not by 15. (Current logical precedence in the condition can be improved; a clearer condition is:
if (( (i%3==0 || i%5==0) && i%15!=0 )); then)
- Scripts are educational examples; review before running on production systems.
- To make scripts safer / more portable consider adding:
set -euo pipefail- POSIX-compatible constructs where needed
Author: Ali Abbas