Linux Script#

Launch update command with a bash script#

How to update easly your linux with this bash script>

First create a .sh file>

sudo vi update.sh

Second modify the file and insert this command, that depend linux your have, by example for Fedora linux>

sudo dnf upgrade --refresh -y && sudo dnf autoremove -y

For Debian>

sudo apt update && sudo apt full-upgrade -y

Save the file and enter this command>

sudo chmod +x update.sh

And for launch the script>

./update.sh

And that’s it 😃

Linux command#

Journalctl#

journalctl is a command-line tool for Linux systems that allows users to view and manage system log messages stored in the systemd journal. It provides a powerful way to monitor and troubleshoot system issues.

# View the most recent log messages
journalctl

# View log messages from the past hour
journalctl --since "1 hour ago"

# View log messages from the past day
journalctl --since "yesterday"

# Search for log messages containing a specific keyword
journalctl | grep keyword

# Follow new log messages as they are generated
journalctl -f

# Show the system log messages in a concise format
journalctl -u systemd

Disk Space Full?#

Check file system disk space usage

df -h

Show largest subdirectories

du -sh * | sort -nr | head

Htop Command#

htop is an interactive version of the top command in Linux. It provides a dynamic view of running processes, allowing you to sort, filter, and manage them in real-time.

htop

Result>

result

Linux Tools#

Ncdu#

ncdu is a disk usage analyzer and viewer that provides a detailed breakdown of disk usage on a Linux system. It is a command-line tool that offers a user-friendly interface for navigating and managing disk space.

# Run ncdu to analyze disk usage on the root file system
ncdu /

# Run ncdu to analyze disk usage on a specific directory
ncdu /home/user

# Run ncdu with the -q option to disable interactive mode and output results to a file
ncdu -q / > disk_usage.txt

Ristretto#

Ristretto is a lightweight and fast image viewer for the XFCE desktop environment. It is designed to provide a simple and efficient way to view, manage, and manipulate image files on Linux systems.

For the help command>

ristretto -h

Usage:
  ristretto [OPTION…]

Help Options:
  -h, --help               Show help options
  --help-all               Show all help options
  --help-gtk               Show GTK+ Options

Application Options:
  -V, --version            Version information
  -f, --fullscreen         Start in fullscreen mode
  -s, --slideshow          Start a slideshow
  -S, --settings           Show settings dialog
  --display=DISPLAY        X display to use

This will open the specified image file in Ristretto.

ristretto image.jpg

All the images in the folder

ristretto *

Linux🐧