NAME

       LAmerge - merge .las files into a single sorted file

SYNOPSIS

       LAmerge [-v] merge:las parts:las ...

DESCRIPTION

       Merge  the  .las  files  parts into a singled sorted file merge, where it is assumed that the input parts
       files are sorted.  Due to operating system limits, the number of parts files must be <= 252.  With the -v
       option set, the program reports the number of records read and written.

       Used correctly, LAmerge and LAsort(1) together allow one to perform an "external" sort  that  produces  a
       collection  of  sorted  files  containing in aggregate all the local alignments found by the daligner(1),
       such that their concatenation is sorted in order of (a,b,o,ab).  In particular, this means that  all  the
       alignments for a given a-read will be found consecutively in one of the files.  So computations that need
       to  look  at  all  the alignments for a given read can operate in simple sequential scans of these sorted
       files.

SEE ALSO

       daligner(1) LAsort(1) LAshow(1) LAcat(1) LAsplit(1) LAcheck(1) HPCdaligner(1) HPCmapper(1)

1.0                                                August 2015                                        LAmerge(1)