NEWGRP(1) BSD General Commands Manual NEWGRP(1)NAME
newgrp -- change to a new group
SYNOPSIS
newgrp [-l] [group]
DESCRIPTION
The newgrp utility creates a new shell execution environment with modified real and effective group IDs.
The options are as follows:
-l Simulate a full login. The environment and umask are set to what would be expected if the user actually logged in again.
If the group operand is present, a new shell is started with the specified effective and real group IDs. The user will be prompted for a
password if they are not a member of the specified group.
Otherwise, the real, effective and supplementary group IDs are restored to those from the current user's password database entry.
EXIT STATUS
The newgrp utility attempts to start the shell regardless of whether group IDs were successfully changed.
If an error occurs and the shell cannot be started, newgrp exits >0. Otherwise, the exit status of newgrp is the exit status of the shell.
SEE ALSO csh(1), groups(1), login(1), sh(1), su(1), umask(1), group(5), passwd(5), environ(7)STANDARDS
The newgrp utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
HISTORY
A newgrp utility appeared in Version 6 AT&T UNIX.
BUGS
Group passwords are inherently insecure as there is no way to stop users obtaining the crypted passwords from the group database. Their use
is discouraged.
BSD May 23, 2002 BSD
Check Out this Related Man Page
NEWGRP(1) BSD General Commands Manual NEWGRP(1)NAME
newgrp -- change to a new primary group
SYNOPSIS
newgrp [-l] [group]
DESCRIPTION
The newgrp command changes a user to a new primary group (real and effective group ID) by starting a new shell. The user remains logged in
and the current directory and file creation mask remain unchanged. The user is always given a new shell even if the primary group change
fails.
The newgrp command accepts the following options:
-l The environment is changed to what would be expected if the user actually logged in again. This simulates a full login.
The group is a group name or non-negative numeric group ID from the group database. The real and effective group IDs are set to group or the
group ID associated with the group name.
If group is not specified, newgrp restores the user's real and effective group IDs to the user's primary group specified in the password
database. The user's supplementary group IDs are restored to the set specified for the user in the group database.
If the user is not a member of the specified group, and the group requires a password, the user will be prompted for the group password.
FILES
/etc/group The group database
/etc/master.passwd The user database
/etc/passwd A Version 7 format password file
EXIT STATUS
If a new shell is started the exit status is the exit status of the shell. Otherwise the exit status will be >0.
SEE ALSO csh(1), groups(1), login(1), sh(1), su(1), umask(2), group(5), passwd(5), environ(7)STANDARDS
The newgrp command conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
HISTORY
A newgrp command appeared in Version 6 AT&T UNIX. A newgrp command appeared in NetBSD 5.0.
BUGS
There is no convenient way to enter a password into /etc/group. The use of group passwords is strongly discouraged since they are inherently
insecure. It is not possible to stop users from obtaining the encrypted password from the group database.
BSD June 6, 2007 BSD
Heyo all,
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QMNAME(Q1) STATUS(Ended immediately)
QMNAME(Q2) ... (7 Replies)
Hello fellow *nix users!
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192.168.1.10
192.168.1.10
192.168.1.10
192.168.1.11
192.168.1.15
192.168.1.15
192.168.1.20
192.168.1.22
then i hope to get the result like this:
192.168.1.10 : 3
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Hi frnds,
I would like to change my default group.
I tried using newgrp, but it will change the group in that xterm only.
If i open a new xterm that setting is gone.
Also i tried by putting newgrp <my_grp> into the file .cshrc which will be run during startup. Eventhough its working, it is... (5 Replies)
Hi All,
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I... (10 Replies)
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$ id user
o/p for the above command
$ uid=1(user) gid=2(x)
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Hi
I'd like to extract, from a text file, the strings starting with "The Thing" and only composed of words with a capital first letter and apostrophes, like for example:
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or
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Hi,
I have manually changed umak value by umask 0033 , After that i would like to change umask value into 0022 through shell scripting..
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Ex:
>umask
0033
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0022
>umask
0033
plz Any... (4 Replies)
Dear friends,
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After a long gap I am... (6 Replies)
I have a file
1|2|3|4
a|b|c|d
1|2
3|4
a|
b|
c|
d|
The file should have 4 fields to load into a database. The file may have cr, lf, or end of line characters.
What I want to see as output is
1|2|3|4
a|b|c|d
1|23|4
a|b|c|d
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There is a file having number of operations :
Opeation,Time-Taken
operation1,83621
operation2,72321
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