When I run this command:
geth --datadir “/home/user/privatechain/data” init “/home/user/privatechain/” 
I get error:
 Fatal: Failed to read genesis file: open “/home/user/privatechain/”: no such file or directory 
But the file exists there: 
pwd 
/home/user/privatechain 
user@user:~/privatechain$ ls 
custom_genesis.json data