List of useful command line in linux

useful_command_linux.sh

# Remove files/folders
rm -rfv folder
rm file_*         # *: pattern
rm -v folder/*    # Remove all child file in that folder

# Determine file size, all file size in folder
du -sh foldername/filenames

# Watch GPU memory usage in linux
watch -d -n 1 nvidia-smi

# Get list of process running on core
ps -A -o pid,psr,args						        #(pid - core - command line)
ps -A -o psr,pid,args | grep '^ *1'			#(core - pid - command line) --> Get list of process running on this core 

# Copy folder in real, not linked
cp -r path1 path2   

# Cound number of lines in filer/file in folder
wc -l filename/folder_name

# scp server to server
scp -r source_path_file/folder ip_address/name:path_to_file/folder

# scp multiple files in folder without overwrite --> sync between 2 folder
rsync -au source_path_folder ip_address/server_name:path_to_folder
rsync -a --ignore-existing source_path_folder ip_address/server_name:path_to_folder