Snippet Collections

Set the priority of a process with the specified `PID` to the lowest possible value (20) using the `renice` command. This demonstrates adjusting process priority in a Unix-like system.

Schedule a system shutdown in 5 minutes with the message "Cya later". This demonstrates using the `shutdown` command to delay a system shutdown.

Shut down the system immediately with the message "Cya later". This command initiates a system shutdown.

The `shutdown` command is used to power off or reboot the system. This snippet demonstrates the basic usage of the `shutdown` command to initiate a system shutdown.

Upgrade all installed packages to their latest versions using `apt`. This command ensures that the system's software is up-to-date with the latest security patches and features. This demonstrates package management.

Uninstall the `wget` package using the `apt` package manager. This command removes the `wget` utility from the system.

Install a specific version (`1.2.3`) of the `wget` package using `apt`. This demonstrates how to install a particular version of a package.

Install the `wget` package using the `apt` package manager. This command is used to download files from the web.

List all available versions of the `wget` package using the `apt` package manager. This command is useful for checking which versions of a package are installable or already installed on a Debian-based system.

Display detailed information about the `wget` package, including its version, dependencies, and description. This command is useful for inspecting package details before installation or management.

Search for the `wget` package in the APT package manager. This command lists available versions and related information about the `wget` package. This demonstrates package searching in APT.

Update the package list from the repositories. This command refreshes the list of available packages and their versions, but does not install or upgrade any packages.

Display memory usage statistics every 5 seconds using the `free` command. This is useful for monitoring memory usage in real-time.

Display memory usage in a human-readable format using the `free` command with `--human` and `--si` options. This shows memory statistics in SI units (powers of 1000).

Display memory usage in a human-readable format using the `free` command with the `--human` option. This provides an overview of total, used, and free memory, as well as swap space.

Display the system's memory usage, including total, used, and free memory, as well as shared, buffers, and cache information. This command provides a quick overview of the current memory utilization on the system.

Display the disk usage of the current directory without traversing subdirectories. This is achieved using the `du` command with the `-d 0` option, which limits the depth of directory traversal to 0. This demonstrates checking disk usage at the top level of a directory.

The `du --max-depth` command is used to display disk usage of files and directories, limiting the depth of the directory tree to be reported. This helps in analyzing disk usage at a specific level of directory hierarchy. This demonstrates disk usage analysis with depth control.

Display disk usage in a human-readable format using the `du` command. This snippet shows the size of files and directories in a more understandable format (e.g., KB, MB, GB). This demonstrates checking disk usage.

The `du` command is used to estimate file space usage. This snippet checks the disk usage of the directory `/foo/bar`. This demonstrates how to measure the disk space consumed by a specific directory.