Tech Backpack/Quick Reference
A Quick Reference for field techs supporting Safety AI that cover tasks they need to do fast in the field.
| Code | ||
|---|---|---|
ifconfig
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Shows all active interfaces, their IP addresses, and status. | Works on Linux, on Windows use ipconfig
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ping
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Shows if a host is reachable and measures round-trip time. | ping 192.168.1.90
|
nmap
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Scans a network to discover devices. | nmap -sn 192.168.1.0/24
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ssh
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Allows secure log into a remote Linux device over a network. Close ssh session with command exit.
|
ssh user@ip_address
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ls
|
Lists files and directories in the current location. | |
cd
|
Changes the current directory. | |
pwd
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Displays the full path of the current working directory. | |
cp
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Copies files or directories. | cp source.txt backup.txt
|
mkdir
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Creates a new directory. | mkdir new_folder
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df -h
|
Shows disk space usage in a human-readable format. | |
scp
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Copies files between local and remote systems over SSH. Usage: scp <source> <destination>
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scp file.txt user@remote:/path/
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journalctl
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Shows systemd logs (system and service messages) | journalctl -u vis -f -b -e
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systemctl status
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Check status of a service. | systemctl status vis
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systemctl start
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Starts a service. | systemctl start vis
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systemctl stop
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Stops a service. | systemctl stop vis
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systemctl restart
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Restarts a service. | systemctl restart vis
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nmcli device status
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Lists all network interfaces with state (connected, disconnected) and type. | |
nmcli connection show
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Lists all saved network connections. | |
nmcli con mod
|
This assigns a static IP, gateway, and DNS to a connection: | nmcli con mod eth0 ipv4.addresses 192.168.1.100/24
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jtop
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Monitors NVIDIA Jetson system resources in real time. Shows CPU, GPU, memory, and temperature usage. | |
sc
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Stop and start ZeroTier service in Windows (requires elevated command prompt.) | sc stop ZeroTierOneService
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