Category Archives: UNIX

UNIX tip – xargs with multiple commands

Xargs is an extremely powerful complement to the awesome find command. One downside is that you usually need to have a single pipeline. By default you can’t put together a bunch of commands which are not piped. However, it is possible to call a shell with xargs. In this way, you can execute multiple commands […]

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Using awk to sum rows of numbers

I have a script which takes a tab-delmited file for regression tests, and converts it xml. I want to do a sanity check, to make sure that the number of utterances in my xml files matches the number in the tab-delimited.txt file. I can do this in 2 lines in UNIX robert_felty$ wc -l samples2.txt […]

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