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Derek Fawcus authored
When the command is executed in one shot mode (-o) with stdin being something other than a terminal, the tcgetattr() call would fail, and generate an error message. e.g.: slabtop: terminal setting retrieval: Inappropriate ioctl for device Active / Total Objects (% used) : 905319 / 915886 (98.8%) Signed-off-by: Craig Small <csmall@enc.com.au>
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