Methods to resolve invalid commands for CP-F replication forced overwrite in Linux CentOS

The default CP command under Linux is aliased (alias cp= ' Cp-i ') and cannot be overridden when copying, even if you cannot force overwrite the file with the-f argument

1) Cancel the alias of CP (this is not a permanent effect):

# unalias cp

# cp -rf /test/a

2) plus backslash \CP execute CP command without walking alias: (Note: recommend this method!) ）

# \cp -rf /test/a

3) Another interesting way to do this:

# yes|cp -rf /test/a

Methods to resolve invalid commands for CP-F replication forced overwrite in Linux CentOS