Linux Monitoring commands

Linux Monitoring.sh

# Original: https://x.com/bjsonnen/status/1900000307804795098/photo/1
# Thanks @bjsonnen

# Real-time system performance overview
top

# Interactive process viewer with color and sorting
htop

# show system uptime, load average, and running processes
uotime

# Display memory usage statistics
free -h

# Show real-time CPU, disk, and swap stats
vmstat 1

# Show I/O statistics for CPU, disk, and network
iostat 1

# Display CPU load by core
mpstat -P ALL 1

# DispLay block device I/O usage
iotop

# Monitor system-wide disk I/O activity
iostat -dx 1

# Display system-wide network statistics
netstat -tulnp

# Monitor network bandwidth usage
iftop

# Show per-process CPU and memony usade
ps aux --sort=-%cpu | head

# Find top memory-consuming processes
ps aux --sort=-%mem | head -6

# Show real-time CPU usage by process
pidstat 1

# Kill a process by PID
kill -9 <PID>

# Show running processes as a tree
pstree

# Show disk space usage of mounted filesystems
df -h

# Show disk usage of a directory
du -sh /var/log

# Monitor real-time disk read/write activity
iotop

# Display inode usage on a filesystem
df -i

# Show memony usage and swap statistics
free -m

# Show memory usage breakdown per process
smem -t

# Monitor memory and swap usage dynamically
watch -n 1 cat /proc/meminfo

# Show active network connections
SS -tulnp

# Display bandwidth usage per intenface
bmon

# Measure network latency and packet loss
ping -c 5 google.com

# Trace the path packets take to a destination
traceroute google.com

# Show onen network ports
netstat -tulnp

# Show real-time network connections
watch -n 1 ss -tulnp

# View system loas in real-time
journalctl -f

# Show logs for a specific service
journalctl -u nginx --since "10 min ago"

# Show kernel messages
dmesg | tail -20

# Monitor power consumotion and battery status
powertop

# Show hardware information
lscpu && lsblk

# Monitor temperature and fan speeds
sensors

# Check if the system if under high load
uptime

# Show current system limits
ulimit -a