TIL: Linux Groups

README.md

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-# Today-I-Learned
-Based on https://github.com/mborn319/today-i-learned and https://github.com/jbranchaud/til.
+# Today I Learned
+
+Things I have learned over time, a reference for me and any who may stumble across this repository.
+
+## Categories
+
+* [Linux](#linux)
+
+## Linux
+
+* [Get a full list of Groups](linux/get-a-full-list-of-groups.md)
+* [List all members of a Group](linux/list-all-members-of-a-group.md)

linux/get-a-full-list-of-groups.md

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+# Get a full list of Groups
+
+For an entire group list, use the following.
+
+```bash
+cut -d: -f1 /etc/group | sort
+```
+
+[Found on StackOverflow](https://stackoverflow.com/questions/14059916/is-there-a-command-to-list-all-unix-group-names)

linux/list-all-members-of-a-group.md

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+# List all members of a Group
+
+## To list members of a group
+
+```bash
+grep '{{groupName}}' /etc/group
+```
+
+## To add some color
+
+```bash
+grep -i --color '{{groupName}}' /etc/group
+```
+
+## To list only member names of a group
+
+```bash
+awk -F':' '/{{groupName}}/{print $4}' /etc/group
+```
+
+[Found on CyberCiti](https://www.cyberciti.biz/faq/linux-list-all-members-of-a-group/)