Provided by: fai-client_6.0ubuntu1_all 
NAME
fcopy - copy files using classes
SYNOPSIS
fcopy [options] SOURCE...
DESCRIPTION
Copy a file from SOURCE to its target using classes. It also sets permission modes for
owner and group. Each SOURCE argument is a directory which contains one or more template
files for the source file to copy. Depending on the list of defined classes, one file of
the source directory is selected and copied to the target. The target filename is the
name of the source directory.
The exit code returned by fcopy is 0 if all files are copied successfully and >0 if an
error occurs. For every successfully copied file, a log message is printed to standard
output.
OPTIONS
Options -c, -s, -t and a SOURCE are required. Usually -c, -s and -t
are set via variables in FAI.
-B Remove backup files with suffix .pre_fcopy. You can also set the environment
variable FCOPY_NOBACKUP to 1.
-b dir Don't copy files to file.pre_fcopy, but use hierarchy under "dir" instead. The
same effect is achieved by setting environment variable FAI_BACKUPDIR.
-c class[,class]
Define classes. Multiple classes must be comma separated. If not specified, use
the shell environment variable $classes (space separated). The first class has
lowest priority.
-C file
Read classes from file. Lines can contain multiple classes which are space
separated. Lines starting with # are comments.
-d Delete target file if no class applies.
-D Create debugging output.
-F file
Read list of sources from file. One SOURCE per line.
-h Show help, version and summary of options.
-H If source is a symbolic link, make destination a symbolic link too.
-i Ignore warnings about no matching class and non-existing source directories. These
warnings will not set the exit code to 1.
-I dir[,dir]
Override list of ignored directories when recursing. If not given, it is taken from
$FCOPY_IGNOREDIRS and as a last chance an internal list of known revision control
system's metadata is used (CVS, .cvs, {arch}, .arch-ids).
-l Do not copy if destination is a symbolic link
-L file
Log SOURCE and used class to file. Output format is
SOURCE CLASS COMMENT
where COMMENT gives some information about why the file has been preserved. If not
specified and $LOGDIR is set, use $LOGDIR/fcopy.log.
-m user,group,mode
Set user, group and mode for all copied files (mode as octal number, user and group
numeric id or name). If not specified, use file file-modes or data of source file.
-M Use default values for user, group and mode. This is equal to -m root,root,0644
-n Print the commands, but do not execute them. This is like --dry-run in other
programs. You can enable it for all calls of fcopy by setting the environment
variable $FCOPY_DRYRUN.
-r Copy recursively (traverse down the tree). Copy all files below SOURCE. These are
all subdirectory leaves in the SOURCE tree. Ignore "ignored" directories (see "-I"
for details).
-s source_dir
Look for SOURCE files relative to source_dir. Use $FAI/files if not specified.
-S Enable variable substitution. Every occurrence of the pattern {%varname%} will be
substituted by the value of the shell variable $varname which is mostly set in
class/CLASSNAME.var. You can enable it for all calls of fcopy by setting the
environment variable $FCOPY_SUBSTITUTE. Variable substitution is done before the
execution of the preinst script.
-t target_dir
Copy files relative to target_dir. Use $FAI_ROOT if not specified.
-U If in softupdate mode skip this entire fcopy command.
-v Create verbose output.
SCRIPTS
preinst
If a file 'preinst' exists and is executable, it is used in the following way:
1. a temporary copy of the file for the used class is created
2. preinst is called with the used class and the full pathname to this temporary
copy (you can do in-place substitutions or other modifications on this copy)
3. the copy is compared to the destination and replaces it only if there are any
differences and if the preinst scripts has a exit code zero.
postinst
If a file 'postinst' exists and is executable, it is called after successfully
having copied the file. It is called with two parameters, the class being used and
the full pathname to the target file. The variable ROOTCMD is set, so you can
prepend it to commands which should be executed in the newly installed system.
EXAMPLES
Suppose the source directory /files/etc/X11/xorg.conf consists of the following files:
CAD DEFAULT LAB MACH64 server1 ant04 postinst
Each file is an instance of a xorg.conf file for a different Xserver configuration. The
command
# fcopy -s /files -t /target /etc/X11/xorg.conf
copies one of these files from the directory /files/etc/X11/xorg.conf to the file
/target/etc/xorg.conf. For all defined classes, fcopy looks if a corresponding file
exists. The class with the highest priority that matches an existing file name will be
used for copying. Here are examples of defined classes for different hosts and the file
which will be copied by fcopy.
Host belongs to the classes File used for copy
DEFAULT,LAB,server3 LAB
DEFAULT,CAD,server1 server1
DEFAULT,MACH64,ant01 MACH64
DEFAULT,TFT,ant13 DEFAULT server1
In FAI the list of defined classes starts with DEFAULT and the last class is the hostname.
DEFAULT is only used when no file for another class exists. If a file is equal to the
hostname, this will be used, since hostname should always be the last class.
User, group and permissions for the files can be defined in several ways. The file file-
modes in the source directory has the highest priority, followed by modes specified by
-m/-M. If neither applies, the modes from the source file are used.
The file file-modes in the source directory can contain one line for each class. The
space separated parameters are:
owner group mode class
Where owner and group can be specified by numeric id or by name. The file permissions are
defined by mode, which must be octal. If class is missing, the data is used for all other
classes, for which no data is defined. If neither -m or file-modes data is available, the
user, group and mode of the source file will be used for the target file.
Missing subdirectories for the target file are created with mode 0755. If the destination
file already exists and is different from the source file, the suffix .pre_fcopy is
appended to the old version of the target file. If source and target files are equal, no
copy is performed. A copied file gets the same access and modification time as the source
file, not the time of the copy. If the file postinst exists, it will be executed after
the file was copied.
NOTES
Do not create a file DEFAULT if no reasonable default configuration file can be used.
It's better to exit with an error than to copy a wrong configuration file.
This command can also be used to maintain your configuration files on a huge number of
hosts.
SEE ALSO
ftar(8)
This program is part of FAI (Fully Automatic Installation). See the FAI manual for more
information on how to use fcopy. The FAI homepage is https://fai-project.org.
AUTHOR
Thomas Lange <lange@cs.uni-koeln.de>
Henning Glawe <glaweh@physik.fu-berlin.de>