Bash commands to install jenkins on Linux

jenkins_commands.sh

# Basic Jenkins commands
http://localhost:8080
# Download Jenkins CLI
wget http://localhost:8080/jnlpJars/jenkins-cli.jar
# Test CLI connection
java -jar jenkins-cli.jar -s http://localhost:8080 help
# List available commands
java -jar jenkins-cli.jar -s http://localhost:8080 help

jenkins_configuration.sh

# Get initial admin password
sudo cat /var/lib/jenkins/secrets/initialAdminPassword
# Or for Docker installations
docker exec jenkins_container cat /var/jenkins_home/secrets/initialAdminPassword
# Access Jenkins web interface
# Browse to http://localhost:8080
# Enter the initial admin password
# Install suggested plugins or select custom plugins

jenkins_install.sh

# Update package manager and install Java
sudo apt update
sudo apt install fontconfig openjdk-21-jre
java -version
# Add Jenkins GPG key
sudo wget -O /usr/share/keyrings/jenkins-keyring.asc \
https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key
# Add Jenkins repository
echo "deb [signed-by=/usr/share/keyrings/jenkins-keyring.asc]" \
https://pkg.jenkins.io/debian-stable binary/ | sudo tee \
/etc/apt/sources.list.d/jenkins.list > /dev/null
# Install Jenkins
sudo apt update && sudo apt install jenkins
# Start Jenkins service
sudo systemctl start jenkins
sudo systemctl enable jenkins

jenkins_job_creation.sh

# Create job from XML configuration
java -jar jenkins-cli.jar -auth user:token create-job my-job < job-config.xml
# Create simple freestyle job via web UI:
# 1. Click "New Item"
# 2. Enter job name
# 3. Select "Freestyle project"
# 4. Configure build steps
# 5. Save configuration

list_jobs.sh

# List all jobs
java -jar jenkins-cli.jar -auth user:token list-jobs
# List jobs with pattern matching
java -jar jenkins-cli.jar -auth user:token list-jobs "*test*"
# Get job configuration
java -jar jenkins-cli.jar -auth user:token get-job my-job > job-config.xml

trigger_jobs.sh

# Trigger & Build jenkins jobs
java -jar jenkins-cli.jar -auth user:token build my-job
# Build with parameters
java -jar jenkins-cli.jar -auth user:token build my-job -p PARAM=value
# Build and wait for completion
java -jar jenkins-cli.jar -auth user:token build my-job -s -v
# Build and follow console output
java -jar jenkins-cli.jar -auth user:token build my-job -f