---
name: "cif_split"
section: "1"
platform: "linux"
package: "cod-tools"
version: "3.11.0+dfsg-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/cif_split"
---

# cif\_split(1)

split CIF files into separate files with one data\_ section each. This script parses given CIF files to separate the data blocks, so is capable of splitting non-correctly formatted and nested CIF files.

## NAME

cif\_split - split CIF files into separate files with one data\_ section each. This script parses given CIF files to separate the data blocks, so is capable of splitting non-correctly formatted and nested CIF files.

## SYNOPSIS

cif\_split --options input1.cif input\*.cif

## DESCRIPTION

Split CIF files into separate files with one data\_ section each.

This script parses given CIF files to separate the data blocks, so is capable of splitting non-correctly formatted and nested CIF files.

## OPTIONS

\-o, --output-dir out/\
                   Put all split files into the directory out/.

\-p, --prefixed, --output-prefixed\
                   Print split data blocks to the STDOUT, each line\
                   prefixed by the data block name. Do not create any files.

\--output-tar\
                   Produce TAR archive with split files to the STDOUT.

\-h, --add-cif-header header\_file.cif\
                   Prepend each of the output files with the comments\
                   from the beginning of the specified file.

\--split-global-data-block\
                   Put the 'data\_global' data block (if any) to each\
                   split file (default).

\--do-not-split-global-data-block,

\--dont-split-global-data-block,

\--no-split-global-data-block\
                   Do not treat 'data\_global' data block (if any) as\
                   special.

\--uniquify-file-names\
                   Postfix duplicated data block names with numbers to\
                   create unique file names.

\--no-uniquify-file-names\
                   Put data blocks with the same name to the same file,\
                   i.e., append (default).

\-v, --verbose\
                   Print names of the generated files to STDERR.

\-q, --quiet\
                   Do not print file names to STDERR.

\--use-perl-parser\
                   Use Perl parser for CIF parsing.

\--use-c-parser\
                   Use Perl & C parser for CIF parsing.

\--cif-input\
                   Use CIF format for input (default).

\--json-input\
                   Use JSON format for input.

\--cif-output\
                   Use CIF format for output (default).

\--json-output\
                   Use JSON format for output.

\--cif\
                   Use CIF format for both input and output (default).

\--json\
                   Use JSON format for both input and output.

\--help, --usage\
                   Output a short usage message (this message) and exit.

\--version\
                   Output version information and exit.

## REPORTING BUGS

Report cif\_split bugs using e-mail: cod-bugs@ibt.lt