Copy/Send files using xxd

copy_with_xxd.sh

# WORKAROUND to use when "scp"/"kubectl cp"/"docker cp" is unvailable

# on local machine
xxd ~/file_aaa.xlsx > /tmp/bin_file_aaa

# md5sum to compare on end
md5sum ~/file_aaa.xlsx

# open and copy full content file
gedit /tmp/bin_file_aaa  
# >>>> ctrl+a && ctrl+c

################################
# ON pod/container 
vi /tmp/remote_bin_file_aaa

#paste content and save

# reverse convert
xxd -r /tmp/remote_bin_file_aaa > /tmp/remote_file_aaa.xlsx

# compare this md5sum with the generated on start/local machine
md5sum /tmp/remote_file_aaa.xlsx