Sponsored Content
Top Forums Shell Programming and Scripting How to get environment of a "fresh" login shell? Post 302243277 by jim mcnamara on Saturday 4th of October 2008 02:11:51 PM
Old 10-04-2008
I assume you mean "clean" as in zero environment variables.

One way
Code:
env - /usr/bin/ksh

Another way
Code:
set | awk '{ print "unset", $1 }' > ./tmp.tmp
. ./tmp.tmp

Now you have to source /etc/profile and then source ~/.profile or .bashrc or /home/username/.cshrc or whatever.

Last edited by jim mcnamara; 10-04-2008 at 09:09 PM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

No utpmx entry: you must exec "login" from lowest level "shell"

Hi I have installed solaris 10 on an intel machine. Logged in as root. In CDE, i open terminal session, type login alex (normal user account) and password and i get this message No utpmx entry: you must exec "login" from lowest level "shell" :confused: What i want is: open various... (0 Replies)
Discussion started by: peterpan
0 Replies

2. Shell Programming and Scripting

ksh script as a login shell return "no controlling terminal"

I have created a ksh shell script and used it as a login shell for a user. </etc/passwd> lramirev:x:111:200:Luis:/export/home/menush:/usr/local/menush/menush My shell script is like this: </usr/local/menush/menush> #!/bin/ksh # if ] then . $HOME/.profile fi ... (8 Replies)
Discussion started by: lramirev
8 Replies

3. AIX

"ksh -" as login shell bypassing .profile

Hi all, I am currently trying to tell /bin/ksh to behave like a login shell. I am invoking it from an interactive shell. In the documentation is stated, that calling it with exec ksh - it should behave like a login shell, work 1st on /etc/profile, ~/.profile and so on. I tried that with... (0 Replies)
Discussion started by: zaxxon
0 Replies

4. UNIX for Dummies Questions & Answers

how to install "source" command!/ broken "login.cl"!

Hello, I am new to this forums and this is my first "asking help" message! i have 2 problems: 1- for unknown reasons the "source" command is not avalable in my system (UBUNTU). i can't either see it in my bin directory! 2- again for unknown reasons the "login.cl" file in the home... (0 Replies)
Discussion started by: astrosona
0 Replies

5. UNIX for Dummies Questions & Answers

Command Character size limit in the "sh" and "bourne" shell

Hi!!.. I would like to know what is maximum character size for a command in the "sh" or "bourne" shell? Thanks in advance.. Roshan. (1 Reply)
Discussion started by: Roshan1286
1 Replies

6. UNIX for Advanced & Expert Users

Command Character size limit in the "sh" and "bourne" shell

Hi!!.. I would like to know what is maximum character size for a command in the "sh" or "bourne" shell? Thanks in advance.. Roshan. (1 Reply)
Discussion started by: Roshan1286
1 Replies

7. Shell Programming and Scripting

Command Character size limit in the "sh" and "bourne" shell

Hi!!.. I would like to know what is maximum character size for a command in the "sh" or "bourne" shell? Thanks in advance.. Roshan. (1 Reply)
Discussion started by: Roshan1286
1 Replies

8. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Hi, I have line in input file as below: 3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL My expected output for line in the file must be : "1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL" Can someone... (7 Replies)
Discussion started by: shis100
7 Replies

9. Shell Programming and Scripting

Shell script using expect to login to couple of remote servers and read "crontab -l"

I need a shell script using expect to login to couple of remote servers and read "crontab -l -u <username>" & "cat /etc/rc.local" & "df -h" and able to create output into a file saved locally with hostname.crontab & hostname.rc.local & disk.status. I can supply a file as list of hostname or IP... (4 Replies)
Discussion started by: jaipsharma
4 Replies

10. Shell Programming and Scripting

Bash script - Print an ascii file using specific font "Latin Modern Mono 12" "regular" "9"

Hello. System : opensuse leap 42.3 I have a bash script that build a text file. I would like the last command doing : print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt where : print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies
CHSH(1)                                                            User Commands                                                           CHSH(1)

NAME
chsh - change login shell SYNOPSIS
chsh [options] [LOGIN] DESCRIPTION
The chsh command changes the user login shell. This determines the name of the user's initial login command. A normal user may only change the login shell for her own account; the superuser may change the login shell for any account. OPTIONS
The options which apply to the chsh command are: -h, --help Display help message and exit. -R, --root CHROOT_DIR Apply changes in the CHROOT_DIR directory and use the configuration files from the CHROOT_DIR directory. -s, --shell SHELL The name of the user's new login shell. Setting this field to blank causes the system to select the default login shell. If the -s option is not selected, chsh operates in an interactive fashion, prompting the user with the current login shell. Enter the new value to change the shell, or leave the line blank to use the current one. The current shell is displayed between a pair of [ ] marks. NOTE
The only restriction placed on the login shell is that the command name must be listed in /etc/shells, unless the invoker is the superuser, and then any value may be added. An account with a restricted login shell may not change her login shell. For this reason, placing /bin/rsh in /etc/shells is discouraged since accidentally changing to a restricted shell would prevent the user from ever changing her login shell back to its original value. FILES
/etc/passwd User account information. /etc/shells List of valid login shells. /etc/login.defs Shadow password suite configuration. SEE ALSO
chfn(1), login.defs(5), passwd(5). shadow-utils 4.5 01/25/2018 CHSH(1)
All times are GMT -4. The time now is 08:42 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy