/Shell/Bash/Bash if user exists in a group then add

Bash if user exists in a group then add

egrep -i "^groupname" /etc/group;
if [ $? -eq 0 ]; then
   echo "Group Exists"
else
   echo "Group does not exist -- Invalid Group name"
fi

Source: bytefreaks.net

Bash if user exists in a group then add

egrep -i "^useraccount:" /etc/passwd;
if [ $? -eq 0 ]; then
   echo "User Exists"
else
   echo "User does not exist -- Invalid Username"
fi

Source: bytefreaks.net

Bash if user exists in a group then add

#!/bin/bash
# init
USERID="$1"
#....
/bin/egrep  -i "^${USERID}:" /etc/passwd
if [ $? -eq 0 ]; then
   echo "User $USERID exists in /etc/passwd"
else 
   echo "User $USERID does not exists in /etc/passwd"
fi
# ....

Source: cyberciti.biz

Similar codes

0 vote381 views1 answer
Ssh option to send null packets
Shell/Bash
0 vote305 views1 answer
Install lttng for ubuntu
Shell/Bash
0 vote358 views1 answer
How to download dash through pip in conda prompt
Shell/Bash
6 votes369 views3 answers
Install livewire laravel
Shell/Bash
0 vote342 views1 answer
Get tag list of image from hub using cli
Shell/Bash
0 vote339 views2 answers
Update centos kernel version yum
Shell/Bash
9 votes319 views6 answers
Install pytorch
Shell/Bash
21 votes375 views6 answers
Pip install pygame
Shell/Bash
0 vote337 views1 answer
Run multiple commands over SSH as sudo
Shell/Bash
52 votes349 views1 answer
Get linux OS info from os-release
Shell/Bash