cp

Copy one or more files to another location.

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

Syntax
 cp [options]... Source Dest
 cp [options]... Source... Directory
Key
 -a, --archive same as -dpR
 -b, --backup Make backup before removal.
 If the copy will overwrite a file in the destination, then
 the original file will be backed up as 'filename~' before
 being overwritten.
 -d, --no-dereference preserve links
 -f, --force remove existing destinations, never prompt
 -i, --interactive prompt before overwrite
 -l, --link link files instead of copying
 -p, --preserve preserve file attributes if possible
 -P, --parents append source path to DIRECTORY
 -r copy recursively, non-directories as files
 --sparse=WHEN control creation of sparse files
 -R, --recursive copy directories recursively
 -s, --symbolic-link make symbolic links instead of copying
 -S, --suffix=SUFFIX override the usual backup suffix
 -u, --update copy only when the SOURCE file is newer
 than the destination file or when the
 destination file is missing
 -v, --verbose explain what is being done
 -V, --version-control=WORD override the usual version control
 -x, --one-file-system stay on this file system
 --help display this help and exit
 --version output version information and exit.

Many users find it useful to set an alias cp="cp -iv" in bashrc, so that progress is always displayed and files do not get overwritten without a confirmation.

By default, sparse SOURCE files are detected by a crude heuristic and the corresponding DEST file is made sparse as well.
That is 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 ~, unless set with SIMPLE_BACKUP_SUFFIX.

The version control can be set with VERSION_CONTROL, values are:

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 are the same name for an existing, regular file.

As a special case, cp makes a backup of SOURCE when the force and backup options are given and SOURCE and DEST are the same name for an existing, regular file.

Examples

Copy demofile to demofile.bak :

$ cp demofile demofile.bak
or
$ cp demofile{,.bak}

With variables make sure you quote everything:

$ cp "$SOURCE" "$DEST"

Copy demofile.txt to demofile.bak :

$ FILE="demofile.txt"
$ cp "$FILE" "${FILE%.*}.bak"

Copy floppy to home directory:

$ cp -f /mnt/floppy/* ~

Copy all .jpg files to the CA folder, and for those with "New York" in the filename, replace with "California_"
the "${f/New York/California_}" is an application of bash parameter expansion
$ mkdir CA
$ for f in *.jpg; do cp "$f" "CA/${f/New York/California_}"; done

"Thank you for sending me a copy of your book; I’ll waste no time reading it" ~ Moses Hadas

Related Linux commands

dd - Data Duplicator - convert and copy a file (use for RAW storage.)
cpio - Copy files to and from archives.
install - Copy files and set attributes.
mv - Move files.
rsync - Remote file copy (Synchronize file trees).
tar - store or extract files to an archive (allows symbolic links to be copied as links).
Equivalent Windows command: COPY - Copy one or more files to another location.

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