Linux Command Learning summary: CP command

Introduction to Commands:

The CP command is used to copy files or directories. Directive English original meaning: copy

Instruction Path:/BIN/CP

Command syntax:

USAGE:CP [OPTION] ... [-T] SOURCE DEST

OR:CP [OPTION] ... SOURCE ... DIRECTORY

OR:CP [OPTION] ...-t DIRECTORY SOURCE ...

Command parameters:

This command parameter is red Hat Enterprise Linux Server release 5.7 under the CP command parameter, different versions of Linux CP command parameters may be different.

Parameters	Long parameters	Description
-A		Equivalent to-DR
-B		If the target file is deleted or overwritten, the target file is backed up, and the backup file ends with the string backed up
-D		Copy Symbolic Links
-F		Force replication
-H		Force the CP command to copy symbolic links. The default value is to follow the symbolic link, which is to copy the file to the symbolic link point.
-I.		Interactive mode. Ask before overwriting the target file
-L		Create a hard link, not a copy
-P		The property of the source directory or file is reserved
-P		The source directory or file's path is reserved
-r/-r		Working with specified directories and subdirectories
-V	--verbose	Show details of command execution
	--help	Show Commands online Help
	--version	Display Command version information

Examples of Use:

1: View Help for the rmdir command

[email protected] ~]# CP--help

USAGE:CP [OPTION] ... [-T] SOURCE DEST

OR:CP [OPTION] ... SOURCE ... DIRECTORY

OR:CP [OPTION] ...-t DIRECTORY SOURCE ...

Copy source to DEST, or multiple source (s) to DIRECTORY.

Mandatory arguments to long options is Mandatory for short options too.

-A,--archive same as-dr--preserve=all

--backup[=control] Make a backup of each existing destination file

-B like--backup but does don't accept an argument

--copy-contents copy contents of special files when recursive

-d Same as--no-dereference--preserve=link

-F,--force if an existing destination file cannot is

Opened, remove it and try again

-I,--interactive prompt before overwrite

-H Follow command-line symbolic links

-L,--link link files instead of copying

-L,--dereference always follow symbolic links

-P,--no-dereference never follow symbolic links

-p Same as--preserve=mode,ownership,timestamps

--preserve[=attr_list] Preserve the specified attributes (default:

Mode,ownership,timestamps), if possible

Additional Attributes:context, links,

Xattr, all

-C Same as--preserve=context

--no-preserve=attr_list don ' t preserve the specified attributes

--parents use full source file name under DIRECTORY

-R,-R,--recursive copy directories recursively

--remove-destination Remove each existing destination file before

Attempting to open it (contrast with--force)

--sparse=when control creation of sparse files

--strip-trailing-slashes remove any trailing slashes from each SOURCE

Argument

-S,--symbolic-link make symbolic links instead of copying

-S,--suffix=suffix override the usual backup suffix

-T,--target-directory=directory Copy all SOURCE arguments to directory

-T,--no-target-directory treat DEST as a normal file

-U,--update copy only if the SOURCE file is newer

than the destination file or when the

Destination file is missing

-V,--verbose explain what's being done

-X,--one-file-system stay on the This file system

-Z,--context=context Set security context of copy to context

--help Display this Help and exit

--version output version information and exit

By default, sparse SOURCE files is detected by a crude heuristic and the

Corresponding DEST file is made sparse as well. That's the behavior

Selected by--sparse=auto. Specify--sparse=always to create a sparse DEST

File whenever the SOURCE file contains a long enough sequence of zero bytes.

Use--sparse=never to inhibit creation of sparse files.

The backup suffix is ' ~ ', and unless set with--suffix or Simple_backup_suffix.

The version control method may be selected via the--backup option or through

The Version_control environment variable. Here is the values:

None, off never make backups (even if--backup is given)

Numbered, t make numbered backups

Existing, nil numbered if numbered backups exist, simple otherwise

Simple, never always make simple backups

As a special case, CP makes a backup of SOURCE when the force and backup

Options are given and SOURCE and DEST is the same name for a existing,

Regular file.

[email protected].

Or

[[email protected] ~]# man CP

2: Copy file file1 and rename to File2

[[email protected] kerry]# ls

File1

[email protected] kerry]# CP file1 file2

[[email protected] kerry]# ls

File1 file2

3: Copy the Kerry directory under the file to the TMP directory

[Email protected] ~]# cp/home/kerry/*/tmp

[Email protected] ~]# cd/tmp

4: Copy all directories under directory including subdirectories to another directory

[[Email protected] ~] #cp-R/home/tomcat//tmp/bak

5: Preserve file attributes when copying (save modified date, time, and access control list associated with the source file, etc.)

[Email protected] kerry]# LS-LRT

Total 8

-rw-r--r--1 root root 3886 Jan 23:04 install.log.syslog

[Email protected] kerry]# cp-p install.log.syslog INSTALL.LOG.SYSLOG.BAK1

[email protected] kerry]# CP Install.log.syslog INSTALL.LOG.SYSLOG.BAK2

[Email protected] kerry]# LS-LRT

Total 24

-rw-r--r--1 root root 3886 Jan 23:04 install.log.syslog.bak1

-rw-r--r--1 root root 3886 Jan 23:04 install.log.syslog

-rw-r--r--1 root root 3886 Jan 23:10 install.log.syslog.bak2

6: Copy files in exchange form

[Email protected] kerry]# cp-i/var/log/*.

Cp:overwrite './acpid '? N

Cp:overwrite './anaconda.log '? N

Cp:overwrite './anaconda.syslog '? Y

Cp:overwrite './anaconda.xlog '? N

cp:omitting directory '/var/log/audit '

Cp:overwrite './boot.log '? N

Cp:overwrite './boot.log.1 '? N

Cp:overwrite './boot.log.2 '? N

Linux Command Learning summary: CP command