Linux Command: mv (move files and directories)

$ mv file1 d1/

$ ll d1

total 8
drwxr-xr-x 2 bigboxcode bigboxcode 4096 Jul 21 14:38 ./
drwxrwxrwx 4 root   root   4096 Jul 21 14:38 ../
-rw-r--r-- 1 bigboxcode bigboxcode    0 Jul 21 04:04 file1

$ mv file2 file2_with_new_name.txt

$ ls

file2_with_new_name.txt

$ mv d1 new_d1

$ ls

bigboxfile.txt  file2_with_new_name.txt  file3  new_d1  new_dir  new_sample_cat_file.txt  sample_cat_file.txt

$ ll new_d1

total 8
drwxr-xr-x 2 bigboxcode bigboxcode 4096 Jul 21 14:38 ./
drwxrwxrwx 4 root   root   4096 Jul 21 14:45 ../
-rw-r--r-- 1 bigboxcode bigboxcode    0 Jul 21 04:04 file1

$ mv --help
Usage: mv [OPTION]... [-T] SOURCE DEST
  or:  mv [OPTION]... SOURCE... DIRECTORY
  or:  mv [OPTION]... -t DIRECTORY SOURCE...
Rename SOURCE to DEST, or move SOURCE(s) to DIRECTORY.

Mandatory arguments to long options are mandatory for short options too.
      --backup[=CONTROL]       make a backup of each existing destination file
  -b                           like --backup but does not accept an argument
  -f, --force                  do not prompt before overwriting
  -i, --interactive            prompt before overwrite
  -n, --no-clobber             do not overwrite an existing file
If you specify more than one of -i, -f, -n, only the final one takes effect.
      --strip-trailing-slashes  remove any trailing slashes from each SOURCE
                                 argument
  -S, --suffix=SUFFIX          override the usual backup suffix
  -t, --target-directory=DIRECTORY  move all SOURCE arguments into DIRECTORY
  -T, --no-target-directory    treat DEST as a normal file
  -u, --update                 move 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
  -Z, --context                set SELinux security context of destination
                                 file to default type
      --help     display this help and exit
      --version  output version information and exit

The backup suffix is '~', 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 are 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