Week 1 - Linux Shell and Bash

Linux Command	What it does
ls	Lists the files and directories in the current directory.
cd	Changes the current directory to the specified location.
mkdir	Creates a new directory with the specified name.
cp	Copies files or directories from one location to another.
mv	Moves (or renames) files or directories to a different location.
rm	Removes (deletes) files or directories. Use with caution.
grep	Searches for a specific text pattern in files or output.
chmod	Changes the permissions of files or directories, controlling who can read, write, or execute them.
chown	Changes the ownership of files or directories to a different user or group.
ps	Displays information about running processes.
top	Displays a dynamic view of system processes, including CPU and memory usage.
df	Shows disk space usage for file systems.
man	Displays the manual or help page for a specified command.
ssh	Establishes a secure shell connection to a remote server.
wget	Downloads files from the internet using various protocols.
tar	Used to create, view, and extract files from tar archives.
touch	Used to create new empty files or update the access and modification timestamps of existing files.

#creates new file
touch checktools.sh

#changes permissions, adds executable
chmod +x checktools.sh

#edits checktools files
nano checktools.sh 

#runs tool check
./checktools.sh

checking for tools:

1. homebrew
2. python
3. ruby
4. github
5. jupyter notebook
6. vscode
7. docker

echo "Checking installed tools:"

# Check for Homebrew
if command -v brew &>/dev/null; then
    echo "Homebrew is installed."
else
    echo "Homebrew is not installed."
fi

# Check for Python
if command -v python3 &>/dev/null; then
    echo "Python is installed."
else
    echo "Python is not installed."
fi

# Check for Ruby
if command -v ruby &>/dev/null; then
    echo "Ruby is installed."
else
    echo "Ruby is not installed."
fi

# Check for GitHub CLI
if command -v gh &>/dev/null; then
    echo "GitHub CLI is installed."
else
    echo "GitHub CLI is not installed."
fi

# Check for Jupyter Notebook
if command -v jupyter &>/dev/null; then
    echo "Jupyter Notebook is installed."
else
    echo "Jupyter Notebook is not installed."
fi

# Check for Visual Studio Code
if command -v code &>/dev/null; then
    echo "Visual Studio Code is installed."
else
    echo "Visual Studio Code is not installed."
fi

# Check for Docker
if command -v docker &>/dev/null; then
    echo "Docker is installed."
else
    echo "Docker is not installed."
fi