portfolio/labs/linux/setup/docs/bash-shell.md

Bash Shell Profile

Installation

The shell profile is installed for root:

/root/.bashrc.d/ailab.sh

The installer maintains one exact source line in /root/.bashrc and backs up changed files. Start a new Bash session or run:

source /root/.bashrc

Aliases

Alias	Purpose
ll, la	Detailed and hidden-file directory listings
ports	Listening TCP/UDP sockets and processes
dus, dufh	Directory and filesystem usage
failed, jerr, timers	systemd failure, journal error, and timer views
dps, ddf, dcu	Docker containers, disk use, and Compose startup
vms	All libvirt guests
gpu, gpuloop	NVIDIA status once or refreshed every two seconds
now	Current timestamp and timezone

dcu runs docker compose up -d in the current directory and therefore may create or start resources. Review the Compose project before using it.

Functions

• svc_status SERVICE
• svc_logs SERVICE [LINES]
• docker_logs CONTAINER [LINES]
• docker_restart CONTAINER
• vm_autostart VM
• vm_no_autostart VM
• path_backup PATH
• extract ARCHIVE

Functions validate argument counts, and Docker, libvirt, and NVIDIA helpers report missing commands clearly. path_backup creates a timestamped adjacent copy and can consume substantial space for large paths.

Rollback

Review timestamped backups under /root, restore the desired .bashrc or profile copy, and start a new shell. Avoid restoring a backup without checking for unrelated shell changes made after bootstrap.