gcp - Online in the Cloud

PROGRAM:

NAME

gcp - Advanced command-line file copier

SYNOPSIS

gcp [OPTIONS] FILE DEST
gcp [OPTIONS] FILE1 [FILE2...] DEST-DIR

DESCRIPTION

This manual page documents briefly the gcp command.

gcp is a file copier, loosely inspired by cp, but with high level functionalities like:
- transfer progression indication
- continuous copying when there is an issue: it skips the problematic file and goes on
- copy status logging: which files were effectively copied
- name mangling to handle target filesystem limitations (e.g. removing incompatible chars
like "?" or "*" on VFAT)
- forced copy serialization: new files to copy are added to a global queue to avoid hard
drive head seeks
- transfer list management: gcp can save a list of files to copy and reuse it later
- approximate option compatibility with cp (approximate because the behaviour is not
exactly the same, see below)

OPTIONS

These programs follow the usual GNU command line syntax, with long options starting with
two dashes (`-'). By default, calling gcp is equivalent to calling gcp
--preserve=mode,ownership,timestamps.

A summary of options is included below.

General options
--version
Show version of program and exit.

-h, --help
Show summary of options.

-r, --recursive
Copy directories recursively.

-L, --dereference
always follow symbolic links in sources

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

-f, --force
Overwrite existing files.

--preserve=PRESERVE
Keep specified attributes. Attributes can be mode, ownership and timestamps. When
several attributes are passed, they need to be separated by commas. Note that
timestamps preservation has some limits, see section LIMITS.

--no-fs-fix
Don't fix file system naming incompatibilities.

--no-progress
Disable progress bar.

-v, --verbose
Display what is being done.

Sources saving
--sources-save=SOURCES_SAVE
Save the list of source files in a list named SOURCES_SAVE.

--sources-replace=SOURCES_REPLACE
Save the list of source files in a list named SOURCES_REPLACE and replace it if it
already exists.

--sources-load=SOURCES_LOAD
Reuse the list of source file named SOURCES_LOAD.

--sources-del=SOURCES_DEL
Delete the list of source files named SOURCES_DEL.

--sources-list
List the names of source file lists.

--sources-full-list
List the names of source file lists, including their content.

EXIT STATUS

The exit status can be:

· 0 if files have been copied correctly or if another instance of gcp is already running
and will do the copy.

· 1 if at least one file has not been copied, or if something went wrong.

· 2 if all files have been copied but with some issues

LIMITS

Timestamps preservation with --preserve option is limited by the os python module on POSIX
systems. Currently, python only returns timestamps in float format, which is a smaller
precision than what POSIX provides. Progress on this issue can be seen at
http://bugs.python.org/issue11457.

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