05-22-2015
All shells I worked with are case sensitive. There is no command SET, but set -x is usually used to debug scripts. You see the commands that are executed and the actual values of the variables.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi Unixers, :)
In a shell script i found the following statements
mline='grep\^ 1111 emaster.dbf
set -- $mline
The first statement searches the emaster.dbf file for the code 1111 and ifit finds any such line it gets that line and stores it in mline.
But iam getting little bit confusion with... (4 Replies)
Discussion started by: ravi raj kumar
4 Replies
2. Shell Programming and Scripting
i have a script in which i go to a particular dir and list all its file
------------------------------------------------------------------------
#!/bin/ksh
if test -d systemProperties
then
set --`cd systemProperties`
for i in *
do
echo "$i" >> lastm2.txt
done
fi... (2 Replies)
Discussion started by: ali560045
2 Replies
3. Shell Programming and Scripting
Hi,
I am new to unix and trying to learn shell scripting. I am using Redhat linux instead of unix and using Bash shell.
I typed some code which consist of "set" command. I got the code from a book.
The code is,
set 'who am i'
echo $name
Actually the... (3 Replies)
Discussion started by: saravanakumar
3 Replies
4. UNIX for Dummies Questions & Answers
I have heard the following command and seen people using it at shell but I don't know what it is for and when it is used. I will appreciate any comment regarding the use of this command.
set -o vi (2 Replies)
Discussion started by: agasamapetilon
2 Replies
5. Shell Programming and Scripting
hi all,
Please tell all the uses of set -x command.
Also can you tell about other options which can be used with set command.
Thanks:)
sumit (3 Replies)
Discussion started by: sumit207
3 Replies
6. Shell Programming and Scripting
Hi,
I have following scenario..
set -e
eval Command 1
eval Command 2
eval Command 3
gmake realclean
but now the problem is I want to print an error message, advising user to run gmake realclean after resolving errors if any of the Command1/2/3 failed. I know I can use trap to do... (0 Replies)
Discussion started by: Shribigb
0 Replies
7. UNIX for Dummies Questions & Answers
Hi all,
Some clarification regarding the unix set command for ksh env.
I read up the man pages, but ended up more blur. Eg.
- Turns off -x and -v flags and stops examining argu-
ments for flags.
- Does not change any of the flags. This option is
... (1 Reply)
Discussion started by: srage
1 Replies
8. HP-UX
Hi,
I am using hp unix
i want to know the use of the following commands
set --
set - variable
thanks (4 Replies)
Discussion started by: gomathi
4 Replies
9. UNIX for Dummies Questions & Answers
I'm reading about debugging aids in bash and have come across the set command. It says in my little book that an addition to typing
set
you can also use them "on the command line when running a script..." and it lists this in a small table:
set -o option Command Line... (5 Replies)
Discussion started by: Straitsfan
5 Replies
10. UNIX for Dummies Questions & Answers
Hi Guys,
I like to output every command executed in the script to a file.
I have tried set -x which does the same.
But it is not giving the logs of the child script which is being called from my script.
Is there any parameters in the Set command or someother way where i can see the log... (2 Replies)
Discussion started by: mac4rfree
2 Replies
LEARN ABOUT SUSE
set_role
SET
ROLE(7) SQL Commands SET ROLE(7)
NAME
SET ROLE - set the current user identifier of the current session
SYNOPSIS
SET [ SESSION | LOCAL ] ROLE rolename
SET [ SESSION | LOCAL ] ROLE NONE
RESET ROLE
DESCRIPTION
This command sets the current user identifier of the current SQL session to be rolename. The role name can be written as either an identi-
fier or a string literal. After SET ROLE, permissions checking for SQL commands is carried out as though the named role were the one that
had logged in originally.
The specified rolename must be a role that the current session user is a member of. (If the session user is a superuser, any role can be
selected.)
The SESSION and LOCAL modifiers act the same as for the regular SET [set(7)] command.
The NONE and RESET forms reset the current user identifier to be the current session user identifier. These forms can be executed by any
user.
NOTES
Using this command, it is possible to either add privileges or restrict one's privileges. If the session user role has the INHERITS
attribute, then it automatically has all the privileges of every role that it could SET ROLE to; in this case SET ROLE effectively drops
all the privileges assigned directly to the session user and to the other roles it is a member of, leaving only the privileges available to
the named role. On the other hand, if the session user role has the NOINHERITS attribute, SET ROLE drops the privileges assigned directly
to the session user and instead acquires the privileges available to the named role.
In particular, when a superuser chooses to SET ROLE to a non-superuser role, she loses her superuser privileges.
SET ROLE has effects comparable to SET SESSION AUTHORIZATION [set_session_authorization(7)], but the privilege checks involved are quite
different. Also, SET SESSION AUTHORIZATION determines which roles are allowable for later SET ROLE commands, whereas changing roles with
SET ROLE does not change the set of roles allowed to a later SET ROLE.
SET ROLE does not process session variables as specified by the role's ALTER ROLE [alter_role(7)] settings; this only happens during login.
SET ROLE cannot be used within a SECURITY DEFINER function.
EXAMPLES
SELECT SESSION_USER, CURRENT_USER;
session_user | current_user
--------------+--------------
peter | peter
SET ROLE 'paul';
SELECT SESSION_USER, CURRENT_USER;
session_user | current_user
--------------+--------------
peter | paul
COMPATIBILITY
PostgreSQL allows identifier syntax ("rolename"), while the SQL standard requires the role name to be written as a string literal. SQL does
not allow this command during a transaction; PostgreSQL does not make this restriction because there is no reason to. The SESSION and
LOCAL modifiers are a PostgreSQL extension, as is the RESET syntax.
SEE ALSO
SET SESSION AUTHORIZATION [set_session_authorization(7)]
SQL - Language Statements 2010-05-14 SET ROLE(7)