No Shell

Thread Tools Search this Thread
Top Forums UNIX for Advanced & Expert Users No Shell
# 1  
Old 08-17-2009
No Shell


I have an issue that i have never come across before. I have 1 user on a server who cannot login. When they connect using Putty and put in the login id and password the session is terminated. It is as if they had /usr/bin/false in /etc/passwd but they dont. This is the password entry;


Also, if i try to su to this user i get a reply

su: No shell
Memory fault

This is only happening with this one user and i wonder if anyone has come across this before and might have some ideas on where to look??
# 2  
Old 08-17-2009
To keep the forums high quality for all users, please take the time to format your posts correctly.

First of all, use Code Tags when you post any code or data samples so others can easily read your code. You can easily do this by highlighting your code and then clicking on the # in the editing menu. (You can also type code tags [code] and [/code] by hand.)

Second, avoid adding color or different fonts and font size to your posts. Selective use of color to highlight a single word or phrase can be useful at times, but using color, in general, makes the forums harder to read, especially bright colors like red.

Third, be careful when you cut-and-paste, edit any odd characters and make sure all links are working property.

Thank You.

The UNIX and Linux Forums
# 3  
Old 08-17-2009
No solution, alas, from my side, but a bunch of ideas:

Have you checked /usr/bin/sh to be what it should be: an executable containing a shell?

Maybe in your system there is a list of allowed login shells maintained. Is /usr/bin/sh among them? (I had this once when a user changed his login shell to bash on an AIX system and then couldn't log in.)

Are the rights for /usr/bin/sh (and its parent directories) set correctly so that the user can execute it?

Anyways, i hope you post the solution once you find it. This sounds interesting.

# 4  
Old 08-17-2009
Or maybe you are using NIS. Look at your /etc/nssswitch.conf.
# 5  
Old 08-17-2009
Have you run the password file syntax checker "pwck" ?

In my browser display of you post the 6th character of the password line is a smiley face not a colon. I can't see a proper colon separator between field 1 (username) and field 2 (encrypted password). Maybe you have a bad character in the password file. If so, remember to use "vipw" not "vi".
# 6  
Old 08-17-2009
I can confirm the passwd file is correct. This is how it should of been displayed previously.


I have looked at /usr/bin/sh and it looks okay.

We do use NIS (of which i have no experience having only joined this company last week) so i dont know if that makes any difference. It just seems odd that it only effects this one user....

I will do some more looking around but if anyone has any other ideas on where to look please let me know.

# 7  
Old 08-17-2009
What OS? (AiX?)
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Pass C shell array to another C shell script(csh) and shell(sh)

Dear Friends, Please help me on this my script name is send.csh In this i have written the statement like this set args = ( city state country price ) I want to pass this array to another c shell called receiver.csh. and i want to use it in this c shell or how to pass to... (2 Replies)
Discussion started by: SA_Palani
2 Replies

2. UNIX for Dummies Questions & Answers

Shell script to read lines in a text file and filter user data Shell Programming and Scripting

sxsaaas (3 Replies)
Discussion started by: VikrantD
3 Replies

3. Shell Programming and Scripting

Any shell or hack that makes the shell command line take vi commands?

basically i'm tired of hitting the left arrow a few dozen times when correcting a mistake or modifying a history command i'd like to use vim style key shortcuts while on the command line so that a 55 moves the cursor 55 places to the left... and i want all the other vi goodies, search of... (3 Replies)
Discussion started by: marqul
3 Replies

4. Shell Programming and Scripting

calling 'n' number of shell scripts based on dependency in one shell script.

Hello gurus, I have three korn shell script 3.1, 3.2, 3.3. I would like to call three shell script in one shell script. i m looking for something like this call 3.1; If 3.1 = "complete" then call 3.2; if 3.2 = ''COMPlete" then call 3.3; else exit The... (1 Reply)
Discussion started by: shashi369
1 Replies

5. Shell Programming and Scripting

simple shell - how to get a parameter typed in a shell script

Hi, I am new to unix and using linux 7.2. I would like to create a script that would make it easyer for me to run my java programms. At the moment I have to type java myJavaprogram I am trying to write a script that will allow me to type something like this "myscript myJavaprogram" or maybe... (4 Replies)
Discussion started by: cmitulescu
4 Replies

6. Shell Programming and Scripting

How to run cmds after changing to a new env (shell) in a shell script

Hi, I am using HP-UNIX. I have a requirement as below I have to change env twice like: cadenv <env> cadenv <env> ccm start -d /dbpath ccm tar -xvf *.tar ccm rcv .... mv *.tar BACKUP but after I do the first cadenv <env> , I am unable to execute any of the later commands . ... (6 Replies)
Discussion started by: charlei
6 Replies

7. Shell Programming and Scripting

Help need to make a shell script run for ffmpeg vhook watermaking in shell

i have a small problem getting a batxh shell script to run in shell this is the code the problem seems to be centered around the ffmpeg command, something maybe to do with the ' ' wrapping around the vhook part command this is a strange problem , if i take the ffmpeg command and... (1 Reply)
Discussion started by: wingchun22
1 Replies

8. Linux

How to Start a Shell as Login shell instead of ordinary shell

Hi I tried with bash --login option. but the output is siva:~$ bash --login siva:~$ is there any way to make the shell ask for user id and password ( and login as different user instead of using sudo / su ) Thx in advance Siva (3 Replies)
Discussion started by: Sivaswami
3 Replies

9. AIX

Difference between writing Unix Shell script and AIX Shell Scripts

Hi, Please give me the detailed Differences between writing Unix Shell script and AIX Shell Scripts. Thanks in advance..... (0 Replies)
Discussion started by: haroonec
0 Replies

10. Shell Programming and Scripting

How to run unix commands in a new shell inside a shell script?

Hi , I am having one situation in which I need to run some simple unix commands after doing "chroot" command in a shell script. Which in turn creates a new shell. So scenario is that - I need to have one shell script which is ran as a part of crontab - in this shell script I need to do a... (2 Replies)
Discussion started by: hkapil
2 Replies
Login or Register to Ask a Question

Featured Tech Videos