Running Complex Commands with sudo | Linux Today
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Running Complex Commands with sudo

Written By
Web Webster
Web Webster
Apr 3, 2009

“This fails with “permission denied” because the
file is writable only by root:

$ echo 12000 > /proc/sys/vm/dirty_writeback_centisecs

“But, this fails too:

$ sudo echo 12000 >
/proc/sys/vm/dirty_writeback_centisecs

“Why?”


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Web Webster

Web Webster

Web Webster has more than 20 years of writing and editorial experience in the tech sector. He’s written and edited news, demand generation, user-focused, and thought leadership content for business software solutions, consumer tech, and Linux Today, he edits and writes for a portfolio of tech industry news and analysis websites including webopedia.com, and DatabaseJournal.com.

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