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samtools-flags(1)	      Bioinformatics tools	       samtools-flags(1)

NAME
     samtools flags - convert between textual and numeric flag representation.

SYNOPSIS
     samtools flags FLAGS...

DESCRIPTION
     Convert between textual and numeric flag representation.

     Each  FLAGS  argument may be either an integer (in decimal, hexadecimal, or
     octal) representing a combination of the listed numeric flag values,  or  a
     comma-separated string NAME,...,NAME representing a combination of the flag
     names listed below.

     FLAGS:
       0x1   PAIRED	     paired-end (or multiple-segment) sequencing technology
       0x2   PROPER_PAIR     each segment properly aligned according to the aligner
       0x4   UNMAP	     segment unmapped
       0x8   MUNMAP	     next segment in the template unmapped
      0x10   REVERSE	     SEQ is reverse complemented
      0x20   MREVERSE	     SEQ of the next segment in the template is reverse complemented
      0x40   READ1	     the first segment in the template
      0x80   READ2	     the last segment in the template
     0x100   SECONDARY	     secondary alignment
     0x200   QCFAIL	     not passing quality controls
     0x400   DUP	     PCR or optical duplicate
     0x800   SUPPLEMENTARY   supplementary alignment

AUTHOR
     Written by Petr Danacek from the Sanger Institute.

SEE ALSO
     samtools(1)

     Samtools website: <http://www.htslib.org/>

samtools-1.23.1 		  18 March 2026 	       samtools-flags(1)

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