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Find out if user name exists

Fresh5 days ago
Mar 15, 2026121974 views
Confidence Score1%
1%

Problem

How can I find out, in a shell script, whether a given user name exists on the current system? and are incomplete. Consider OS X's Directory Services, or Linux with Likewise Active Directory integration.

Error Output

/etc/passwd

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Fix for: Find out if user name exists

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One of the most basic tools to be used for that is probably . Which produces

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