i tried to do it using the if way, and i could only managed to do it using 3 lines. The execution time is definitely longer than your suggestion, since i have to open the file 3 times. Is there any way i can modify it into 1 line? I appreciate your 'for' loop, its elegant and achieves the purpose. But i am raw to UNIX script, hoping to learn more ways to do it.
Would appreciate if anyone can suggest?
i am looking at something like
awk 'BEGIN(FS="[:,]"} { if (NF == 3) print $1":"$2 \n print $1":"$3 \n else print $1":"$2 print)' $F
but i got a bunch of syntax errors.
awk: cmd. line:1: BEGIN{FS="[:,]"}{if (NF == 2)print $1":"$2\n}
awk: cmd. line:1: ^ backslash not last chine
hey there
well i have a small problem with my code. when for example :
" /bin/sleep 10 & ls -l mila > xyz " is entered, the program is supposed to separate the two commands 1) /bin/sleep 10 & and 2) ls -l mila > xyz. im not sure of how to achieve this. my current program stores both commands... (2 Replies)
Hello Guys...
I am bit new to shell scripting and was looking for help !!
I have got syslog data on a linux server recording log messages from a device.
I need to seperate the data from log to file so that I can push it excell and get a report from that.
Log is in the format below
"... (2 Replies)
Hi,
I have a text file in following format:
2.45
5.67
6.43
I have to cut the values before decimal and store them in a file.
So the output file should look like:
2
5
6
.
.
and so on...
Can someone suggest me a sed/awk command for doing this? (2 Replies)
I have folder like main. inside main folder there are subfolders & files like main1 main2 main3, file1, file2, file3.
I want folders main1 & main2, file1, file2 from main folder. copy them into new folder.
Please suggest me how to do it.
I am new to shell programming (2 Replies)
Hi all,
I have a single text file, Contig3.fasta, that looks like this:
>NAME1
ACCTGGTA
>NAME2
GGTTGGACA
>NAME3
ATTTTGGGCCAnd It has about 100 items like this in it. What I would like to do is copy each item into 100 different text files, and have them named a certain way
Output... (4 Replies)
I have a file Map.hh shown below. I want to put the two classes Phase and Map in two different files Phase.hh and Map.hh. I have forward declaration before the Map class. How can I tackle this situation?
//////////////////////////////////////////////////////////////////////////
#ifndef... (3 Replies)
Hi All,
I am new to unix but have a requirement wherein I need to separate datatype,length, and column name from input file which is of below format --
record
integer(10) empid;
string(25) name;
date("YYYY-MM-DD") dob;
decimal(10) salary;
end
now after getting datatype,its length and... (4 Replies)
Hello,
I have a text file running into around 100 thousand+ lines which has the following rigid structure:
Each field is separated by a comma.
Some examples are given below:
23,Chinttaman Pagare,चिंतमण पगारे
24, Chinttaman Pateel,चिंतामण पाटल
25, Chinttaman Rout,चिंतामण राऊत
26,... (3 Replies)
Hi
I have the following file
# cat red
it.d-state = 50988 41498 45 0 0 0
it.age_buffer= 1500
it.dir = 1
I need to grep lines that are present after "="
But when I do so, few lines has more than one value and some has one
How to parse the line
I have used the follwing... (6 Replies)
Discussion started by: Priya Amaresh
6 Replies
LEARN ABOUT CENTOS
drop_role
DROP ROLE(7) PostgreSQL 9.2.7 Documentation DROP ROLE(7)NAME
DROP_ROLE - remove a database role
SYNOPSIS
DROP ROLE [ IF EXISTS ] name [, ...]
DESCRIPTION
DROP ROLE removes the specified role(s). To drop a superuser role, you must be a superuser yourself; to drop non-superuser roles, you must
have CREATEROLE privilege.
A role cannot be removed if it is still referenced in any database of the cluster; an error will be raised if so. Before dropping the role,
you must drop all the objects it owns (or reassign their ownership) and revoke any privileges the role has been granted. The REASSIGN OWNED
(REASSIGN_OWNED(7)) and DROP OWNED (DROP_OWNED(7)) commands can be useful for this purpose.
However, it is not necessary to remove role memberships involving the role; DROP ROLE automatically revokes any memberships of the target
role in other roles, and of other roles in the target role. The other roles are not dropped nor otherwise affected.
PARAMETERS
IF EXISTS
Do not throw an error if the role does not exist. A notice is issued in this case.
name
The name of the role to remove.
NOTES
PostgreSQL includes a program dropuser(1) that has the same functionality as this command (in fact, it calls this command) but can be run
from the command shell.
EXAMPLES
To drop a role:
DROP ROLE jonathan;
COMPATIBILITY
The SQL standard defines DROP ROLE, but it allows only one role to be dropped at a time, and it specifies different privilege requirements
than PostgreSQL uses.
SEE ALSO
CREATE ROLE (CREATE_ROLE(7)), ALTER ROLE (ALTER_ROLE(7)), SET ROLE (SET_ROLE(7))
PostgreSQL 9.2.7 2014-02-17 DROP ROLE(7)