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	== Basic File System Commands ==		== Basic File System Commands ==

Admin: Created page with "Category:Wiki == Basic File System Commands == === Displaying File System Usage === To check the file system disk usage: df -h This will display the disk space usage of all mounted file systems in a human-readable format. === Checking Available Memory === To check available memory on an Arista switch: free -h This will display memory usage in a human-readable format, showing total, used, free, and available memory. === View..."

2025-12-14T16:47:34Z

Created page with "Category:Wiki == Basic File System Commands == === Displaying File System Usage === To check the file system disk usage: <nowiki> df -h</nowiki> This will display the disk space usage of all mounted file systems in a human-readable format. === Checking Available Memory === To check available memory on an Arista switch: <nowiki> free -h</nowiki> This will display memory usage in a human-readable format, showing total, used, free, and available memory. === View..."

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[[Category:Wiki]]

== Basic File System Commands ==

=== Displaying File System Usage ===
To check the file system disk usage:
<nowiki>
df -h</nowiki>

This will display the disk space usage of all mounted file systems in a human-readable format.

=== Checking Available Memory ===
To check available memory on an Arista switch:
<nowiki>
free -h</nowiki>

This will display memory usage in a human-readable format, showing total, used, free, and available memory.

=== Viewing Running Processes ===
Use the following command to view running processes:
<nowiki>
ps aux</nowiki>

This will list all running processes with detailed information such as user, PID, CPU, memory usage, and more.

== Network Configuration Commands ==

=== Displaying Network Interfaces ===
To display the status of network interfaces on the device:
<nowiki>
show interfaces status</nowiki>

This command shows the status of each network interface, including the interface name, VLAN, and link status.

=== Displaying Routing Table ===
To view the current routing table:
<nowiki>
show ip route</nowiki>

This command will display the routing table, which includes network destinations, subnet masks, next-hop addresses, and routing protocols.

=== Ping a Remote Host ===
To check connectivity to a remote device or server:
<nowiki>
ping <IP-address></nowiki>

This will send ICMP echo requests to the target IP address and show response times.

=== Displaying IP Addresses of Interfaces ===
To display IP addresses of all interfaces:
<nowiki>
show ip interface brief</nowiki>

This will show a brief overview of IP addresses assigned to all interfaces, including operational status.

== Advanced System Commands ==

=== Viewing System Logs ===
To view the system log, which includes error messages and other important system-level information:
<nowiki>
show logging</nowiki>

This command will display logs with timestamps, severity levels, and message content.

=== Restarting the Network Daemon ===
To restart the network daemon:
<nowiki>
sudo systemctl restart networking</nowiki>

This command will restart the network service, which is often necessary after changes to network configuration.

=== Checking System Uptime ===
To view how long the system has been running since the last reboot:
<nowiki>
uptime</nowiki>

This will show the current time, how long the system has been running, and the load averages for 1, 5, and 15 minutes.

=== Viewing System Processes in Real-Time ===
Use the following command to view system processes in real-time:
<nowiki>
top</nowiki>

This command provides a dynamic real-time view of system processes, resource usage, and system load.

== File and Directory Operations ==

=== Viewing Directory Contents ===
To list the contents of the current directory:
<nowiki>
ls -l</nowiki>

This command shows detailed information about files and directories, including permissions, ownership, size, and timestamps.

=== Copying Files ===
To copy files from one location to another:
<nowiki>
cp <source-path> <destination-path></nowiki>

For example, to copy a configuration file from one directory to another:
<nowiki>
cp /mnt/flash/config.txt /mnt/flash/backup/config.txt</nowiki>

=== Moving Files ===
To move a file to a new location:
<nowiki>
mv <source-path> <destination-path></nowiki>

For example:
<nowiki>
mv /mnt/flash/config.txt /mnt/flash/backup/config.txt</nowiki>

=== Deleting Files ===
To delete a file:
<nowiki>
rm <file-path></nowiki>

For example:
<nowiki>
rm /mnt/flash/old_config.txt</nowiki>

=== Creating Directories ===
To create a new directory:
<nowiki>
mkdir <directory-name></nowiki>

For example:
<nowiki>
mkdir /mnt/flash/config_backup</nowiki>

== System Monitoring and Debugging ==

=== Viewing System Resources ===
To monitor system resource usage such as CPU and memory utilization:
<nowiki>
top</nowiki>

This will provide an interactive, real-time overview of system resources.

=== Debugging Network Connectivity ===
To trace the route to a specific IP address:
<nowiki>
traceroute <IP-address></nowiki>

For example:
<nowiki>
traceroute 192.168.1.1</nowiki>

This command will show the path packets take to reach the destination, helping diagnose routing issues.

=== Checking System Health ===
To perform a quick check on the system’s health:
<nowiki>
show system health</nowiki>

This command shows system health status including memory, CPU load, and disk usage.

== Useful Links ==

* [Arista EOS Documentation](https://www.arista.com/en/um-eos)
* [Arista EOS Bash Commands Overview](https://www.arista.com/en/technologies/eos)
* [Linux Command Reference](https://www.gnu.org/software/bash/manual/bash.html)
* [Arista EOS Command-Line Interface Guide](https://www.arista.com/en/um-eos-cli)
* [Linux Networking Commands](https://www.linux.org/threads/linux-networking-commands.2493/)

ARISTA - Bash Commands - Revision history

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