Home » Tag Archives: Unix

Tag Archives: Unix

Unix: Redirecting stderr to stdout

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I’ve been trying to optimise some Neo4j import queries over the last couple of days and as part of the script I’ve been executed I wanted to redirect the output of a couple of commands into a file to parse afterwards. I started with the following script which doesn’t do any explicit redirection of the output: #!/bin/sh   ./neo4j-community-2.2.3/bin/neo4j start ...

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Why Unix utilities are worth learning

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Why VIM? Sooner or later there comes the day when your easy-to-use IDE becomes useless for handling huge files. There aren’t many editors capable of working with very large files, like production logs for instance. I’ve recently had to analyze a 100 MB one-line JSON file and once more VIM saved the day. VIM, like many other Unix utilities, is ...

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Unix pipelines for basic spelling error detection

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Introduction We can of course write programs to do most anything we want, but often the Unix command line has everything we need to perform a series of useful operations without writing a line of code. In my Applied NLP class today, I show how one can get a high-confidence dictionary out of a body of raw text with a ...

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