Generates a BAM index ".bai" file. This tool creates an index file for the input BAM that allows fast look-up of data in a BAM file, lke an index on a database. Note that this tool cannot be run on SAM files, and that the input BAM file must be sorted in coordinate order.
Usage example:
java -jar picard.jar BuildBamIndex \
I=input.bam
Category Read Data Manipulation
Overview
Command line program to generate a BAM index (.bai) file from a BAM (.bam) fileBuildBamIndex (Picard) specific arguments
This table summarizes the command-line arguments that are specific to this tool. For more details on each argument, see the list further down below the table or click on an argument name to jump directly to that entry in the list.
Argument name(s) | Default value | Summary | |
---|---|---|---|
Required Arguments | |||
--INPUT -I |
A BAM file or GA4GH URL to process. Must be sorted in coordinate order. | ||
Optional Tool Arguments | |||
--arguments_file |
read one or more arguments files and add them to the command line | ||
--help -h |
false | display the help message | |
--OUTPUT -O |
The BAM index file. Defaults to x.bai if INPUT is x.bam, otherwise INPUT.bai. If INPUT is a URL and OUTPUT is unspecified, defaults to a file in the current directory. | ||
--version |
false | display the version number for this tool | |
Optional Common Arguments | |||
--COMPRESSION_LEVEL |
5 | Compression level for all compressed files created (e.g. BAM and VCF). | |
--CREATE_INDEX |
false | Whether to create an index when writing VCF or coordinate sorted BAM output. | |
--CREATE_MD5_FILE |
false | Whether to create an MD5 digest for any BAM or FASTQ files created. | |
--GA4GH_CLIENT_SECRETS |
client_secrets.json | Google Genomics API client_secrets.json file path. | |
--MAX_RECORDS_IN_RAM |
500000 | When writing files that need to be sorted, this will specify the number of records stored in RAM before spilling to disk. Increasing this number reduces the number of file handles needed to sort the file, and increases the amount of RAM needed. | |
--QUIET |
false | Whether to suppress job-summary info on System.err. | |
--REFERENCE_SEQUENCE -R |
Reference sequence file. | ||
--TMP_DIR |
One or more directories with space available to be used by this program for temporary storage of working files | ||
--USE_JDK_DEFLATER -use_jdk_deflater |
false | Use the JDK Deflater instead of the Intel Deflater for writing compressed output | |
--USE_JDK_INFLATER -use_jdk_inflater |
false | Use the JDK Inflater instead of the Intel Inflater for reading compressed input | |
--VALIDATION_STRINGENCY |
STRICT | Validation stringency for all SAM files read by this program. Setting stringency to SILENT can improve performance when processing a BAM file in which variable-length data (read, qualities, tags) do not otherwise need to be decoded. | |
--VERBOSITY |
INFO | Control verbosity of logging. | |
Advanced Arguments | |||
--showHidden |
false | display hidden arguments |
Argument details
Arguments in this list are specific to this tool. Keep in mind that other arguments are available that are shared with other tools (e.g. command-line GATK arguments); see Inherited arguments above.
--arguments_file
read one or more arguments files and add them to the command line
List[File] []
--COMPRESSION_LEVEL
Compression level for all compressed files created (e.g. BAM and VCF).
int 5 [ [ -∞ ∞ ] ]
--CREATE_INDEX
Whether to create an index when writing VCF or coordinate sorted BAM output.
Boolean false
--CREATE_MD5_FILE
Whether to create an MD5 digest for any BAM or FASTQ files created.
boolean false
--GA4GH_CLIENT_SECRETS
Google Genomics API client_secrets.json file path.
String client_secrets.json
--help / -h
display the help message
boolean false
--INPUT / -I
A BAM file or GA4GH URL to process. Must be sorted in coordinate order.
R String null
--MAX_RECORDS_IN_RAM
When writing files that need to be sorted, this will specify the number of records stored in RAM before spilling to disk. Increasing this number reduces the number of file handles needed to sort the file, and increases the amount of RAM needed.
Integer 500000 [ [ -∞ ∞ ] ]
--OUTPUT / -O
The BAM index file. Defaults to x.bai if INPUT is x.bam, otherwise INPUT.bai.
If INPUT is a URL and OUTPUT is unspecified, defaults to a file in the current directory.
File null
--QUIET
Whether to suppress job-summary info on System.err.
Boolean false
--REFERENCE_SEQUENCE / -R
Reference sequence file.
File null
--showHidden / -showHidden
display hidden arguments
boolean false
--TMP_DIR
One or more directories with space available to be used by this program for temporary storage of working files
List[File] []
--USE_JDK_DEFLATER / -use_jdk_deflater
Use the JDK Deflater instead of the Intel Deflater for writing compressed output
Boolean false
--USE_JDK_INFLATER / -use_jdk_inflater
Use the JDK Inflater instead of the Intel Inflater for reading compressed input
Boolean false
--VALIDATION_STRINGENCY
Validation stringency for all SAM files read by this program. Setting stringency to SILENT can improve performance when processing a BAM file in which variable-length data (read, qualities, tags) do not otherwise need to be decoded.
The --VALIDATION_STRINGENCY argument is an enumerated type (ValidationStringency), which can have one of the following values:
- STRICT
- LENIENT
- SILENT
ValidationStringency STRICT
--VERBOSITY
Control verbosity of logging.
The --VERBOSITY argument is an enumerated type (LogLevel), which can have one of the following values:
- ERROR
- WARNING
- INFO
- DEBUG
LogLevel INFO
--version
display the version number for this tool
boolean false
GATK version 4.2.4.0-SNAPSHOT built at Thu, 16 Dec 2021 11:57:48 -0800.
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