In Unix/Linux, how do you find out what group a given user is in via command line?
This question is related to
linux
unix
command-line
sysadmin
groups
or
groups user
or just study /etc/groups (ok this does probably not work if it uses pam with ldap)
This one shows the user's uid as well as all the groups (with their gids) they belong to
id userid
Below is the script which is integrated into ansible and generating dashboard in CSV format.
sh collection.sh
#!/bin/bash
HOSTNAME=`hostname -s`
for i in `cat /etc/passwd| grep -vE "nologin|shutd|hal|sync|root|false"|awk -F':' '{print$1}' | sed 's/[[:space:]]/,/g'`; do groups $i; done|sed s/\:/\,/g|tr -d ' '|sed -e "s/^/$HOSTNAME,/"> /tmp/"$HOSTNAME"_inventory.txt
sudo cat /etc/sudoers| grep -v "^#"|awk '{print $1}'|grep -v Defaults|sed '/^$/d;s/[[:blank:]]//g'>/tmp/"$HOSTNAME"_sudo.txt
paste -d , /tmp/"$HOSTNAME"_inventory.txt /tmp/"$HOSTNAME"_sudo.txt|sed 's/,[[:blank:]]*$//g' >/tmp/"$HOSTNAME"_inventory_users.txt
My output stored in below text files.
cat /tmp/ANSIBLENODE_sudo.txt
cat /tmp/ANSIBLENODE_inventory.txt
cat /tmp/ANSIBLENODE_inventory_users.txt
On Linux/OS X/Unix to display the groups to which you (or the optionally specified user) belong, use:
id -Gn [user]
which is equivalent to groups [user] utility which has been obsoleted on Unix.
On OS X/Unix, the command id -p [user] is suggested for normal interactive.
Explanation on the parameters:
-G,--groups- print all group IDs
-n,--name- print a name instead of a number, for-ugG
-p- Make the output human-readable.
or just study /etc/groups (ok this does probably not work if it uses pam with ldap)
This one shows the user's uid as well as all the groups (with their gids) they belong to
id userid
or just study /etc/groups (ok this does probably not work if it uses pam with ldap)
On Linux/OS X/Unix to display the groups to which you (or the optionally specified user) belong, use:
id -Gn [user]
which is equivalent to groups [user] utility which has been obsoleted on Unix.
On OS X/Unix, the command id -p [user] is suggested for normal interactive.
Explanation on the parameters:
-G,--groups- print all group IDs
-n,--name- print a name instead of a number, for-ugG
-p- Make the output human-readable.
Below is the script which is integrated into ansible and generating dashboard in CSV format.
sh collection.sh
#!/bin/bash
HOSTNAME=`hostname -s`
for i in `cat /etc/passwd| grep -vE "nologin|shutd|hal|sync|root|false"|awk -F':' '{print$1}' | sed 's/[[:space:]]/,/g'`; do groups $i; done|sed s/\:/\,/g|tr -d ' '|sed -e "s/^/$HOSTNAME,/"> /tmp/"$HOSTNAME"_inventory.txt
sudo cat /etc/sudoers| grep -v "^#"|awk '{print $1}'|grep -v Defaults|sed '/^$/d;s/[[:blank:]]//g'>/tmp/"$HOSTNAME"_sudo.txt
paste -d , /tmp/"$HOSTNAME"_inventory.txt /tmp/"$HOSTNAME"_sudo.txt|sed 's/,[[:blank:]]*$//g' >/tmp/"$HOSTNAME"_inventory_users.txt
My output stored in below text files.
cat /tmp/ANSIBLENODE_sudo.txt
cat /tmp/ANSIBLENODE_inventory.txt
cat /tmp/ANSIBLENODE_inventory_users.txt
This one shows the user's uid as well as all the groups (with their gids) they belong to
id userid
Source: Stackoverflow.com