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Shell Programming and Scripting
Performance issue - to read line by line
Post 302993870 by MadeInGermany on Wednesday 15th of March 2017 04:58:15 PM
03-15-2017
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LEARN ABOUT DEBIAN
pfsinmulti
pfsinmulti(1) General Commands Manual pfsinmulti(1) NAME
pfsinmulti - read several streams of frames and write pfs streams to named pipes SYNOPSIS
pfsinmulti pfsinmulti <file> [--frames f:s:t] [--skip-frames] [<file>...] -- command @1 @2 [@3 ...] DESCRIPTION
Use this command to read several animation sequences and write them to pfsstreams. This command is useful with those pfs programs, which take several pfs streams as arguments. For example, the following command can be used to combine two animations so that there are stitched together: pfsinmulti anim_a-%04d.hdr anim_b-%04d.hdr -- pfscat @1 @2 arguments @1 and @2 are replaced with named pipes for anim_a-%04d.hdr and anim_b-%04d.hdr frames respectively. command argument is obliga- tory and it must be preceded with '--'. There should be as many @1, @2, .., @n arguments as there are animation sequences given as input. Arguments --frames, --skip-frames and other options are handled the same way as in pfsin program. Also pfsinmulti recognizes the same file formats as pfsin. Technically, pfsinmulti creates a named pipe for each pfsstream, replaces @n arguments with the names of those pipes and deletes the pipes when command finishes. EXAMPLES
pfsinmulti image1.hdr image2.hdr -- cat @1 @2 | pfsview Does the same as 'pfsv image1.hdr image2.hdr' but in much more sophisticated way. SEE ALSO
pfsin(1) BUGS
This command currently does not handle multiple frames given with a %d pattern in case of LDR formats: JPEG, PNG, PNM. Please report bugs and comments to Rafal Mantiuk <mantiuk@mpi-sb.mpg.de>. pfsinmulti(1)