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Full Discussion: merging two files
Top Forums Shell Programming and Scripting merging two files Post 52858 by dkaplowitz on Monday 28th of June 2004 12:09:10 PM
Old 06-28-2004
Code:
cp firstfile secondfile

will "clobber" the 2nd file. (clobber = completely replace/overwrite everything in "secondfile").

If you want to append data from firstfile, try
Code:
firstfile >> secondfile

, which appends the contents of firstfile to secondfile. Make sure there are two ">>" b/c only one ">" does the same thing as the above cp command. This is explained in good shell programming books under "input/output redirection".
 

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MINCCONVERT(1)							 MINC User's Guide						    MINCCONVERT(1)

NAME
mincconvert - convert between MINC 1 to MINC 2 format. SYNOPSIS
mincconvert [-clobber] [-2] infile outfile mincconvert -help DESCRIPTION
mincconvert copies the input file to the output file, possibly converting the file from MINC 1 to MINC 2 format, or vice versa. With the -template flag, mincconvert creates a "template" volume from the input MINC volume. The template volume preserves all of the structure (dimensions, variables, and attributes) of the input MINC volume but omits all data. Any attempt to read data will return zeroes. The resulting file is typically much shorter than a normal MINC volume, and may be useful for scripts which want to carry such structural information forward into their output files. As a hint to future programmers and users, this program places a special global attribute in the file, with the name class and the value template. OPTIONS
-2 Create a MINC 2 format file -clobber Overwrite a pre-existing output file. -help Print a summary of command line options and exit -template Create a template file. -compress N Compress file with compression level N. Valid compression levels are 0 for no compression to 9 for maximum compression. The option has no effect if the output file is a MINC 1 file. -chunk M Store file in a block-structured arrangement, using hypercubes of edge length M. The option has no effect if the output file is a MINC 1 file. -help Print summary of command-line options and exit. -version Print the program's version number and exit. AUTHOR
Bert Vincent - bert@bic.mni.mcgill.ca COPYRIGHTS
Copyright (C) 2003 by Robert Vincent and the Montreal Neurological Institute. $Date: 2004-05-20 21:52:08 $ MINCCONVERT(1)
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