in csh I was using:
set prompt=""$HOSTNAME".tk.\!> "
to customize the look of my prompt. I have seen the light after reading the perils of csh scripting and wish to switch to bash. How do I customize my bash prompt??? I've tried many variation of the above w/no success, and searching this... (2 Replies)
I want to combine 2 conditional statements by using -o in bash, but it won't work.
if ; then
echo "The number needs to be between 0 and $nr"
fi
Each time i execute the file it says:
./selectCitaat: line 10: syntax error near unexpected token `$1' (3 Replies)
It looks like,
user@hostname:/auto/home3/user$
Desired,
user@hostname$
I added following line in .bashrc, but still its same.
export PS1=" $ "
Please help me :confused: (13 Replies)
I'm using a custom prompt with PS1 in my .profile. It is
PS1="\\u@\e\:\W\ \\$\ \"
and it works well, as you can see,
http://content.screencast.com/users/killer54291/folders/Jing/media/2b3db52a-ebf7-43e2-95cc-f45dadbc2b98/00000023.png
but, when i type more than the width of the window, it... (0 Replies)
This is an instance of "if it's not one thing, it's another."
I recently fell victim to my own stupidity in trashing, by accident, my long-running and very highly-customized .bash_profile and .bashrc files for Cygwin & Cygwin/X. I had backups from a previous "go" with this, and decided to use... (0 Replies)
I am working with a script to simplyfy some operations where I work, but one of the programs needs me to enter a password.
It will as me "Please enter the administrator password:"
Is there a way to make a bash script to automatically answer the question with the needed password?
I am looking... (3 Replies)
I have a file
cat <<EOF > /tmp/test
Line one
Line two
Line three
EOF
Now I am trying to get the exit stat ($?) of 1 if any text is found and 0 if any text is not found using grep, i.e. just reversing the exit status of grep
# (snippet 1) this one is not working!!! retval $?... (4 Replies)
Hello Guys,
I have facing problem with linux shell prompt .Am expecting my Bash prompt to be like below
but its showing like
~]$ ot@Servername and while typing the commands the prompt looks like below:
~]$ echo $PS1
$
~]$ ot@ServernameChecked the .bash_profile and also changed... (9 Replies)
I think(hope) I've got a simple one - I just need to send an email if a mysql query returns any results (ideally - it will never match).
Currently I just pipe the mysql query output to the mail program, but of course that emails regardless of the output( and I check this every 10 minutes from... (5 Replies)
I use the .bashrc file from this thread.
Direct link to the archive containing the ultimate bashrc
I am trying to use autojump, but it will not autoload the directories to the autojump list as the custom prompt is not compatible.
Here is the thread on the issue from other users.
apt -... (2 Replies)
Discussion started by: genehunter
2 Replies
LEARN ABOUT SUNOS
newgrp
newgrp(1) User Commands newgrp(1)NAME
newgrp - log in to a new group
SYNOPSIS
Command
/usr/bin/newgrp [ -| -l] [group]
sh Built-in
newgrp [argument]
ksh Built-in
*newgrp [argument]
DESCRIPTION
Command
The newgrp command logs a user into a new group by changing a user's real and effective group ID. The user remains logged in and the cur-
rent directory is unchanged. The execution of newgrp always replaces the current shell with a new shell, even if the command terminates
with an error (unknown group).
Any variable that is not exported is reset to null or its default value. Exported variables retain their values. System variables (such as
PS1, PS2, PATH, MAIL, and HOME), are reset to default values unless they have been exported by the system or the user. For example, when a
user has a primary prompt string (PS1) other than $ (default) and has not exported PS1, the user's PS1 will be set to the default prompt
string $, even if newgrp terminates with an error. Note that the shell command export (see sh(1) and set(1)) is the method to export vari-
ables so that they retain their assigned value when invoking new shells.
With no operands and options, newgrp changes the user's group IDs (real and effective) back to the group specified in the user's password
file entry. This is a way to exit the effect of an earlier newgrp command.
A password is demanded if the group has a password and the user is not listed in /etc/group as being a member of that group. The only way
to create a password for a group is to use passwd(1), then cut and paste the password from /etc/shadow to /etc/group. Group passwords are
antiquated and not often used.
sh Built-in
Equivalent to exec newgrp argument where argument represents the options and/or operand of the newgrp command.
ksh Built-in
Equivalent to exec to/bin/newgrp argument where argument represents the options and/or operand of the newgrp command.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
OPTIONS
The following option is supported:
-l | - Change the environment to what would be expected if the user actually logged in again as a member of the new group.
OPERANDS
The following operands are supported:
group A group name from the group database or a non-negative numeric group ID. Specifies the group ID to which the real and
effective group IDs will be set. If group is a non-negative numeric string and exists in the group database as a group name
(see getgrnam(3C)), the numeric group ID associated with that group name will be used as the group ID.
argument sh and ksh only. Options and/or operand of the newgrp command.
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of newgrp: LANG, LC_ALL, LC_CTYPE, LC_MES-
SAGES, and NLSPATH.
EXIT STATUS
If newgrp succeeds in creating a new shell execution environment, whether or not the group identification was changed successfully, the
exit status will be the exit status of the shell. Otherwise, the following exit value is returned:
>0 An error occurred.
FILES
/etc/group system's group file
/etc/passwd system's password file
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO login(1), ksh(1), set(1), sh(1), intro(3), getgrnam(3C), group(4), passwd(4), attributes(5), environ(5), standards(5)SunOS 5.10 1 Feb 1995 newgrp(1)
08-01-2010
