siman/linux-commands.md

## linux-commands.md

      
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              linux-commands.md
            
          
    Useful Linux Commands for Admins

Restart Subsocial docker container

docker container restart subsocial_node_alice_1
Process manager + shows CPU and RAM usage

htop
Disk usage - nice UI

ncdu
Calculate space of dirs and sort:

du -sh ./* | sort -h
Show process running on particular port:

fuser 80/tcp
Background process

After you execute a command (or shell script) in the background using &,
if you logout from the session, the command will get killed.
To avoid that, you should use nohup as shown below.
$ nohup ./my-shell-script.sh &
Firewall rules

ufw status
Allow HTTP connections (port 80)

ufw allow http
Read more here.
Get content of localhost:

curl -X GET http://127.0.0.1:3000
Show tree of current directory w/ node_modules folder:

$ tree -L 3 -I *_modules