10-02-2008
grep
you could do something like this:
USER=whoevertheuseris
[ who | grep -q $USER ] && start daemon.
I'm wondering though, how are you gonna start this?
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have the following output. I want to write a script to check for
1. waits > 0 on all rowsand Ratio > .0. if true then send email.
=========================
ROLLBACK SEGMENT CONTENTION
=========================
If any ratio is > .01 then more rollback segments are needed
NAME ... (1 Reply)
Discussion started by: jigarlakhani
1 Replies
2. UNIX for Dummies Questions & Answers
How to write a shell script file to read 5 numbers using a while loop. Finding the average, maximum and minumum for the numbers.
Any help would be great. (1 Reply)
Discussion started by: Chin
1 Replies
3. Shell Programming and Scripting
Hello ALL,
I am fresher in Unix . i need help to write small shell script . Please help me unix guru.
I am developing the internal site in my office . the data files are generated in one directory everyday .
I have to write shell script to sort those files and put it is internal site .
... (3 Replies)
Discussion started by: deepa20
3 Replies
4. AIX
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
5. Shell Programming and Scripting
Hi,
I am a new for shell script. i need to write script using the following commands
cd /usres/test
# create directory
mkdir temp+DATE( i need to append date )
#moving files from one directory to this directory(we need to check total files in source and taget)
cd /users/sample
... (2 Replies)
Discussion started by: bmkreddy
2 Replies
6. UNIX and Linux Applications
I have written a shell script and when i ran the script,for some point of time it is asking to press enter key manually using keyboard.So i need it the enter key in shell itself.
ex : in my shell script,i used the command ssh-keygen -t rsa so it asks the enter 3 times. can you please let me know... (3 Replies)
Discussion started by: lkeswar
3 Replies
7. Shell Programming and Scripting
Hi
I have two files a.log and b.log . i need to append a.log and b.log so that at the end of first line in a.log i need the append the data of first line from b.log and end of the second line in a.log i need to append the data of second line from b.log and so on up to the end of the file
can... (3 Replies)
Discussion started by: lalu
3 Replies
8. Shell Programming and Scripting
Hi, I'm very new to this, so bear with me please.
I want to write a sh script (or if there's a better format please let me know) that allows me to, when I run it, print the date to a file (1.out) take 2 arguments (files a.fa and b.fa), run them with another program, outputting to 2.out, and then... (2 Replies)
Discussion started by: ShiGua
2 Replies
9. UNIX for Dummies Questions & Answers
Hi, I'm very new to this, so bear with me please.
I want to write a sh script (or if there's a better format please let me know) that allows me to, when I run it, print the date to a file (1.out) take 2 arguments (files a.fa and b.fa), run them with another program, outputting to 2.out, and then... (4 Replies)
Discussion started by: ShiGua
4 Replies
10. UNIX for Dummies Questions & Answers
Dear Team,
Below is the list of steps i need to perform manually as of now and completely new to shell scripting, could you help in writing a shell script to perform the below procedure?
1. Log in to primary DNS server
2. Check /etc/named.conf if zone is already created (grep –i... (2 Replies)
Discussion started by: VKIRUPHAKARAN
2 Replies
LEARN ABOUT CENTOS
alter_group
ALTER
GROUP(7) PostgreSQL 9.2.7 Documentation ALTER GROUP(7)
NAME
ALTER_GROUP - change role name or membership
SYNOPSIS
ALTER GROUP group_name ADD USER user_name [, ... ]
ALTER GROUP group_name DROP USER user_name [, ... ]
ALTER GROUP group_name RENAME TO new_name
DESCRIPTION
ALTER GROUP changes the attributes of a user group. This is an obsolete command, though still accepted for backwards compatibility, because
groups (and users too) have been superseded by the more general concept of roles.
The first two variants add users to a group or remove them from a group. (Any role can play the part of either a "user" or a "group" for
this purpose.) These variants are effectively equivalent to granting or revoking membership in the role named as the "group"; so the
preferred way to do this is to use GRANT(7) or REVOKE(7).
The third variant changes the name of the group. This is exactly equivalent to renaming the role with ALTER ROLE (ALTER_ROLE(7)).
PARAMETERS
group_name
The name of the group (role) to modify.
user_name
Users (roles) that are to be added to or removed from the group. The users must already exist; ALTER GROUP does not create or drop
users.
new_name
The new name of the group.
EXAMPLES
Add users to a group:
ALTER GROUP staff ADD USER karl, john;
Remove a user from a group:
ALTER GROUP workers DROP USER beth;
COMPATIBILITY
There is no ALTER GROUP statement in the SQL standard.
SEE ALSO
GRANT(7), REVOKE(7), ALTER ROLE (ALTER_ROLE(7))
PostgreSQL 9.2.7 2014-02-17 ALTER GROUP(7)