Introduction to the Linux CP (copy) command

\CP -RF source1 source2 source3 .... Directory

CP (copy files or directories)

[[email protected] ~]# CP [-ADFILPRSU] source file (source) destination (destination) [[email protected] ~]# CP [options] Source1 source2 sou Rce3 .... Directory

Parameters:

-A: equivalent to the meaning of-pdr;
-D: If the source file is the attribute of the link file, the link file attribute is copied instead of the file itself;
- F : For force, if there is any duplication or other doubt, the user will not be asked, but forced to copy;
-I: If the destination file (destination) already exists, it will ask if the action is true when it is overwritten!
-L: The link file for the hard link is established, not the copy file itself;
-P: Copy the past together with the attributes of the archive, rather than using the default attributes;
- R : Recursive continuous replication, used for directory replication behavior;
-S: Copy as a symbolic link file (symbolic link), i.e. "shortcut" files;
-U: Update destination If destination is older than source!

Finally, note that if the source file has more than two, then the last destination file must be "directory"!

Example:

Example one: Copy the. BASHRC from the home directory to/TMP and rename it to BASHRC

[[email protected] ~]# Cd/tmp[[email protected] tmp]# CP ~/.BASHRC bashrc[[email protected] tmp]# cp-i ~/.BASHRC BASHRC

Cp:overwrite ' BASRHC '? N

# Repeat two times, because BASHRC already exists under/TMP, plus the-i parameter,

# You will be asked if the user is sure before overwriting! You can press N or y!

# However, conversely, if you do not want to ask, then add-f This parameter to force direct overwrite!

Example two: Copy the/var/log/wtmp to/tmp

[Email protected] tmp]# cp/var/log/wtmp. <== want to copy to the current directory, the last. Don't forget

# Did you notice?! In the case of no parameters, the file's owner will change, and even the permissions have changed ~

# This is a very important feature! Be careful! Also, even the time to set up the file is different!

# If you want to copy all the features of the file together, you can add a-a-oh!

Example three: Copy all the contents of the/etc/directory to/tmp

[[email protected] tmp]# cp/etc//tmpcp:omitting directory ' etc '    <== if it is a directory, cannot be copied directly, add-r parameters [[email protected] t mp]# cp-r/etc//tmp

# still want to emphasize again Oh! -R is a directory that can be copied, but the permissions of the file and directory will be changed ~

# So, you can also use Cp-a/etc/tmp to give orders!

Example four: Set up a Nexus file (symbolic link) For example one copy of BASHRC

[[email protected] tmp]# cp-s BASHRC bashrc_slink[[email protected] tmp]# cp-l BASHRC bashrc_hlink

# The Bashrc_slink is caused by the-s parameter, which is created by a "shortcut",

# so you'll see at the far right of the file, it shows where the file is "connected" to!

# As for that Bashrc_hlink fun! After setting up this file, BASHRC and Bashrc_hlink

# All parameters are the same, but the link number in the second column changes to 2 ~ instead of the original 1!

# The similarities and differences between the two ways of linking, we will introduce in the next chapter!

Example five: If ~/.BASHRC is newer than/TMP/BASHRC, copy it.

[Email protected] tmp]# cp-u ~/.BASHRC/TMP/BASHRC

# this-u feature is only copied when the target file differs from the source file.

# So, more often used in "Backup" work! ^_^

Example six: Copy the home directory's. BASHRC and. Bash_history to/tmp

[email protected] tmp]# CP ~/.BASHRC ~/.bash_history/tmp

# Multiple data can be copied to the same directory at once!

Attention:

When the copied object is " directory (that is, folder)", you must remember to add the parameter- R

Therefore, the common Copy command format is as follows:

CP -RF source1 source2 source3 .... Directory

Description: I usually use the \cp-rf command First, and then use chown and chmod to modify the properties.

Recommended Reading

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

Introduction to the Linux CP (copy) command