A set of LINQ-like utilities to easily select chunks of Unix streams without resorting to AWK. 😉
Just copy the utilities to /usr/local/bin or somewhere on your path.
cp stream* /usr/local/bin
All of the utilities have the same rough interface. They take one or two parameters:
- A required numeric argument.
- An optional filename. If no filename is given, then reads from
STDIN.
Example: cat REALLYBIGFILE | stream-seek 1000 | stream-take 100
This will seek to the 1000th byte in the stream, then output the next 100 bytes.
All numeric arguments refer to bytes, not to encoded characters!
Seeks to a position in the input stream.
Takes the specified number of bytes from the current position in the stream and outputs them to STDOUT.
Inserts newlines every n characters. For example, if you have a really big single-line file (ie. no newlines), then stream-newline 40 will insert a newline every 40 bytes and output to STDOUT.
Reading really long human genome DNA files is a pain. 😁