Mercurial > hg > cc > cirrus_work
comparison bin/cdb_chain.sh @ 281:25d49e1f6c1d
automate a cdb chain
| author | Henry S. Thompson <ht@inf.ed.ac.uk> |
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| date | Wed, 05 Mar 2025 23:29:25 +0000 |
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| children |
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| 280:e054fe9403af | 281:25d49e1f6c1d |
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| 1 #!/usr/bin/bash | |
| 2 # Chain together n steps of test_cdbp | |
| 3 # Usage cdb_chain n | |
| 4 # First step takes stdin, intermediate steps use FIFOs, last step goes to stdout | |
| 5 export PYTHONPATH=~/lib/python/cc/lmh | |
| 6 n=$1 | |
| 7 mkfifo from0 | |
| 8 cat | { cdbp.sh 0 > from0 ; } & | |
| 9 seq 1 $((n - 2)) | while read i ; do | |
| 10 mkfifo from$i | |
| 11 cdbp.sh $i < from$((i - 1)) > from$i & | |
| 12 rm $from$((i - 1)) | |
| 13 done | |
| 14 cdbp.sh $((n - 1)) < from$((n - 2)) | |
| 15 rm from$((n - 2)) |