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martinapugliese/command_line.md

Last active October 15, 2018 16:33
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command_line.md

A collection of useful command line hacks (Unix)

Memory usage

MACOS

vm_stat is the command, this makes output user friendly, thanks to this.

vm_stat | perl -ne '/page size of (\d+)/ and $size=$1; /Pages\s+([^:]+)[^\d]+(\d+)/ and printf("%-16s % 16.2f Mi\n", "$1:", $2 * $size / 1048576);'

Linux

free -m
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