Commands by gmadorell (1)

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list files recursively by size

Generate random number with shuf
If you don't have seq or shuf, bash can be used.

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

Create a mirror of a local folder, on a remote server
Create a exact mirror of the local folder "/root/files", on remote server 'remote_server' using SSH command (listening on port 22) (all files & folders on destination server/folder will be deleted)

list block devices
Shows all block devices in a tree with descruptions of what they are.

Find usb device
I often use it to find recently added ou removed device, or using find in /dev, or anything similar. Just run the command, plug the device, and wait to see him and only him

copy ACL of one file to another using getfacl and setfacl

Simple example of the trap command

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Analyze awk fields
translate and number lines is simpler and you use tr to choose your delimiter (eg for csv files)


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