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Top Forums Shell Programming and Scripting Need to generate a file with random data. /dev/[u]random doesn't exist. Post 302844167 by Corona688 on Friday 16th of August 2013 06:08:32 PM
Old 08-16-2013
What system doesn't have /dev/urandom? What languages do you have available?

How about this? When dd quits, it should kill the while-loop too. No named pipe needed.

Code:
while true
do
        cat inputfile
done | dd bs=1024 count=1024 > outputfile

 

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vdltodmx(1)						      General Commands Manual						       vdltodmx(1)

NAME
vdltodmx - dmx configuration file parser and printer SYNOPSIS
vdltodmx infile outfile DESCRIPTION
vdltodmx reads the input file, which should be in VDL configuration file format. After a successful parse, a file in Xdmx configuration file format is written to the output file. The VDL file format is used with xmovie, which is available from http://www.llnl.gov/icc/lc/img/xmovie/xmovie.html EXAMPLE
Given the following VDL-format file: 0 2 # # 2560 2048 Left two-thirds [restrict=*:2] 2 :2.1 1280 2048 0 0 0 0 :2.2 1280 2048 1280 0 0 0 4 1280 1024 0 0 1280 1024 0 1024 1280 1024 1280 0 1280 1024 1280 1024 # 2560 2048 Right two-thirds [restrict=*:2] 2 :2.2 1280 2048 0 0 0 0 :2.3 1280 2048 1280 0 0 0 4 1280 1024 1280 0 1280 1024 1280 1024 1280 1024 2560 0 1280 1024 2560 1024 the following DMX-format file will be produced: # # virtual "Left two-thirds" 2560x2048 { display :2.1 1280x2048; display :2.2 1280x2048 @1280x0; } # virtual "Right two-thirds" 2560x2048 { display :2.2 1280x2048; display :2.3 1280x2048 @1280x0; } BUGS
If the VDL file is not in the expected format, the program will probably dump core. SEE ALSO
Xdmx(1), xdmxconfig(1), vdl(3), xmovie(1) X Version 11 xorg-server 1.12.4 vdltodmx(1)
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