Note also that
Code:
cd /Custom Lock Screens
meand cd starting at the root of the filesystem, which is not what you want/mean. Just do
Code:
cd Custom\ Lock\ Screens
or try quotes
Code:
cd 'Custom Lock Screens'
but in general, don't put spaces in file or dir names. Technically it is legal, but most cmds/utils assume that space separated values are separate params, so don't do that.