Hi
I want to check wether user exist in server or not uisng shell script?
can any one help me regarding this
arunkumarch
0
Newbie Poster
Recommended Answers
Jump to PostThis script will tell you if a user account exists on the system, just pass the user name you want to check as an argument to the script like
user_exists.sh foo#!/bin/bash cat /etc/passwd | grep ^$1 >/dev/null if [ $? == 0 ]; then echo …
Jump to Posthi,
uuoc (useless use of cat)
uuot (useless use of test)if grep -q ^"$1" /etc/passwd then echo "user $1 exists" else echo "user $1 does not exist" exit 1 fi
All 5 Replies
chris.stout
14
Junior Poster in Training
This script will tell you if a user account exists on the system, just pass the user name you want to check as an argument to the script like user_exists.sh foo
#!/bin/bash
cat /etc/passwd | grep ^$1 >/dev/null
if [ $? == 0 ];
then
echo "User $1 exists."
exit 0
else
echo "User $1 does not exist."
exit 1
fi
Watael
4
Junior Poster
hi,
uuoc (useless use of cat)
uuot (useless use of test)
if grep -q ^"$1" /etc/passwd
then
echo "user $1 exists"
else
echo "user $1 does not exist"
exit 1
fi
chris.stout
commented:
That's very cool, thanks for taking the time to to share the improvement.
+1
arunkumarch
0
Newbie Poster
Hi Friend,
Here i have 1 more arised. my linux box is not a stand alone. This is connected in intrenet my used id is also a domain account.
How to check the domain account.
DoRight
2
Light Poster
What type of domain account?
CrazyDieter
4
Junior Poster
I'd rather use the id(1) command :
if id -u $1
then
echo "user $1 exists"
else
echo "user $1 does not exist"
exit 1
fi
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