143 lines
2.8 KiB
Plaintext
143 lines
2.8 KiB
Plaintext
{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Unix Essentials — Bash Exercises\n",
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"\n",
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"This notebook contains short hands-on Bash exercises.\n",
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"Each exercise has a hidden solution that can be unfolded when needed."
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## Exercise 1 – Listing and Filtering Files\n",
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"\n",
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"Create three files and list only those whose name ends with `.log`."
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# your work here\n",
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"touch report.log notes.txt errors.log\n",
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"# list files ending with .log"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"jupyter": {
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"source_hidden": true,
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"outputs_hidden": true
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}
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},
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"outputs": [],
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"source": [
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"# Solution\n",
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"ls *.log"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## Exercise 2 – Redirecting Output\n",
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"\n",
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"List the `/etc` directory and save the results in a file named `listing.txt`, then display the first five lines of that file."
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# your work here\n",
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"# 1. list /etc\n",
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"# 2. redirect output to listing.txt\n",
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"# 3. show first five lines"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"jupyter": {
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"source_hidden": true,
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"outputs_hidden": true
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}
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},
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"outputs": [],
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"source": [
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"# Solution\n",
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"ls /etc > listing.txt\n",
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"head -5 listing.txt"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## Exercise 3 – Using a For Loop\n",
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"\n",
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"Write a loop that prints the line count of each `.txt` file in the current directory."
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# your work here\n",
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"# hint: use wc -l"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"jupyter": {
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"source_hidden": true,
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"outputs_hidden": true
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}
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},
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"outputs": [],
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"source": [
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"# Solution\n",
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"for f in *.txt; do\n",
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" echo \"$f: $(wc -l < \"$f\") lines\"\n",
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"done"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"---\n",
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"All solutions are hidden by default (`source_hidden: true`). Students can unfold them in Jupyter’s interface to compare with their own answers."
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Bash",
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"language": "bash",
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"name": "bash"
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},
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"language_info": {
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"name": "bash"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 5
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}
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