Shell & Unix
- Supported in Unix environments.
- Can also
gzip
-c
create an archive (files to archive, archive from files)-x
extract an archive (archive to files, files from archive)
Options
-f
FILE name of archive - must specify unless using tape drive for archive- create/extract archive with gzip/gunzip
-j
create/extract archive with bzip2/bunzip2-J
create/extract archive with XZ
To compress
tar -czvf myfiles.tar.gz myfiles/
To uncompress
tar -xzvf myfiles.tar.gz
How to check your memory processes
top
Check how much memory is used vs free
Check all the memory each process is consuming
ps aux --sort -rss | head -n 15
kill an unresponsive process on Unix
ps aux | grep <service name>
- find its process id (PID)
kill -9 PID
Check Node traffic on specific port
sudo tcpdump -A -i lo port 2354