Mercurial > hg > cc > cirrus_home
comparison bin/ix.sh @ 88:464d2dfb99c9
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| author | Henry S. Thompson <ht@inf.ed.ac.uk> |
|---|---|
| date | Tue, 13 Apr 2021 17:02:09 +0000 |
| parents | |
| children | 90f8f28b2e51 |
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| 87:b6a5999d8e06 | 88:464d2dfb99c9 |
|---|---|
| 1 #!/usr/bin/bash | |
| 2 # Extract records from warc files given filename, length and offset triples | |
| 3 # from stdin or as command line args | |
| 4 if [ -n "$1" ] | |
| 5 then | |
| 6 printf "%s\t%s\t%s\n" "$1" "$2" "$3" | |
| 7 else | |
| 8 cat | |
| 9 fi | \ | |
| 10 while { IFS=$'\t' read f l o; } | |
| 11 do | |
| 12 dd if="$f" of=/dev/stdout skip=$o count=$l iflag=skip_bytes,count_bytes | |
| 13 done | unpigz -dp 1 -c |