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hgfischer/xargs.md

Created January 11, 2018 08:06
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xargs instead of for loops
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xargs.md

xargs

xargs is really powerful and sometimes allows some one-liners that are easier to write and read than bash loops

Example 1

Deleting many indices from an ElasticSearch cluster, one-by-one.

curl -s localhost:9200/_cat/indices?h=index | \
  grep 2017 | \
  sort | \
  xargs -t -L1 -n1 -I '{}' curl -X DELETE 'localhost:9200/{}'
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