Home » Tag Archives: Unix

Tag Archives: Unix

Unix: Redirecting stderr to stdout


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


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


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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