$ curl cheat.sh/

# getent
# Get entries from Name Service Switch libraries.
# More information: <https://manned.org/getent>.

# Get list of all groups:
getent group

# See the members of a group:
getent group group_name

# Get list of all services:
getent services

# Find a username by UID:
getent passwd 1000

# Perform a reverse DNS lookup:
getent hosts host

$

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