05-19-2005
Hi ,
I am really new to unix......loop can accomplish........but my query is how to get 1 row at a time..what command shud i use for it?
Thanks and Regards
Vivek.S
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi Freinds, :b:
i have a flat file with below format...
1234,Hary,102.55
4567,Maria,250.40
78942,suzan,261.60
48965,Harun,179.32
so I need a script that can get me as below format...
1) 1234,Hary,103
2) 4567,Maria,250
3) 78942,suzan,262
4) 48965,Harun,179
Which means, it... (6 Replies)
Discussion started by: malcomex999
6 Replies
2. Shell Programming and Scripting
Hi all, see i have a script that takes few arguments. first one is command we do on file, next is file (mostly txt file with lot of data) third is destination where we do something with data in file. Since im new in scripting, and im learning as i go, i need some hint how to manipulate that... (3 Replies)
Discussion started by: ajemrunner
3 Replies
3. Shell Programming and Scripting
OK, so if $0 represent the entire record... can I change $2 and will that be reflected back in $0?
I think the following answers that YES, it does work. But is there anything I should be thinking about prior to doing this? What I am actually doing is part of 5 pages of scripting and awk... (1 Reply)
Discussion started by: joeyg
1 Replies
4. Shell Programming and Scripting
I have a requirement like this:
I have modified versions of certain internal/external commands that I am putting into some directory say /mydir.
All the users will go an authentication check once they log in and based on the outcome there are two possibilities:
1. User passes... (12 Replies)
Discussion started by: ramesh_samane
12 Replies
5. UNIX for Dummies Questions & Answers
Hello Unix.com,
I have a text in format:
john
sara
lee
How can I make it:
john:john
john:john1
john:john12
john:john123
sara:sara
sara:sara12
sara:sara123 and so on (2 Replies)
Discussion started by: galford
2 Replies
6. UNIX for Dummies Questions & Answers
Hello unix.com users,
I have a ip file (line-by-line). How can I delete the ips that keep repeating by mark XXX.XXX.XXX.* ... I want to erase only the lines that keep repeating more than 2 times.
Example:
1.2.3.1
1.2.3.2
1.2.3.3
I want to erase all ips blocks that are repeating by C... (1 Reply)
Discussion started by: galford
1 Replies
7. UNIX for Dummies Questions & Answers
I have a list of file names, such as below
n02-z30-dsr65-terr0.50-dc0.002-8x6drw-csq.msf
n02-z30-dsr65-terr0.50-dc0.006-8x6drw-csq.msf
n02-z30-dsr65-terr0.50-dc0.010-8x6drw-csq.msf
n02-z30-dsr65-terr0.50-dc0.004-8x6drw-csq.msf
n02-z30-dsr65-terr0.50-dc0.008-8x6drw-csq.msf
I want to... (11 Replies)
Discussion started by: kristinu
11 Replies
8. Shell Programming and Scripting
I want to do the next
"I don't want to go school
because I'm sick today."
I want to join these two line but only when the first line is not more than 20 characters
and ended whit nothing or a comma and the second line not more than 15.
The 20 and the 15 can be change in the script.
I know... (10 Replies)
Discussion started by: thailand
10 Replies
9. Shell Programming and Scripting
Hello
Could you help with small script:
How to split string X1 into 3 string
String X1 can have 1 or many strings
X1='A1:B1:C1:D1:A2:B2:C2:D2:A3:B3:C3:D3'
This is output which I want to have:
Z1='A1:B1:C1:D1'
Z2='A2:B2:C2:D2'
Z3='A3:B3:C3:D3' (5 Replies)
Discussion started by: vikus
5 Replies
10. Shell Programming and Scripting
Hi,
I want to update the file with a value at a particular position
$cat test.txt
COL1=TEST
COL2=
COL3=AADSDFSDFDSFDFDF
I want to update the file with a value for COL2.
After update, the file should be like this
$cat test.txt
COL1=TEST
COL2=1
COL3=AADSDFSDFDSFDFDF
here 1... (9 Replies)
Discussion started by: vedanta
9 Replies
LEARN ABOUT CENTOS
dblink_get_result
DBLINK_GET_RESULT(3) PostgreSQL 9.2.7 Documentation DBLINK_GET_RESULT(3)
NAME
dblink_get_result - gets an async query result
SYNOPSIS
dblink_get_result(text connname [, bool fail_on_error]) returns setof record
DESCRIPTION
dblink_get_result collects the results of an asynchronous query previously sent with dblink_send_query. If the query is not already
completed, dblink_get_result will wait until it is.
ARGUMENTS
conname
Name of the connection to use.
fail_on_error
If true (the default when omitted) then an error thrown on the remote side of the connection causes an error to also be thrown locally.
If false, the remote error is locally reported as a NOTICE, and the function returns no rows.
RETURN VALUE
For an async query (that is, a SQL statement returning rows), the function returns the row(s) produced by the query. To use this function,
you will need to specify the expected set of columns, as previously discussed for dblink.
For an async command (that is, a SQL statement not returning rows), the function returns a single row with a single text column containing
the command's status string. It is still necessary to specify that the result will have a single text column in the calling FROM clause.
NOTES
This function must be called if dblink_send_query returned 1. It must be called once for each query sent, and one additional time to obtain
an empty set result, before the connection can be used again.
When using dblink_send_query and dblink_get_result, dblink fetches the entire remote query result before returning any of it to the local
query processor. If the query returns a large number of rows, this can result in transient memory bloat in the local session. It may be
better to open such a query as a cursor with dblink_open and then fetch a manageable number of rows at a time. Alternatively, use plain
dblink(), which avoids memory bloat by spooling large result sets to disk.
EXAMPLES
contrib_regression=# SELECT dblink_connect('dtest1', 'dbname=contrib_regression');
dblink_connect
----------------
OK
(1 row)
contrib_regression=# SELECT * FROM
contrib_regression-# dblink_send_query('dtest1', 'select * from foo where f1 < 3') AS t1;
t1
----
1
(1 row)
contrib_regression=# SELECT * FROM dblink_get_result('dtest1') AS t1(f1 int, f2 text, f3 text[]);
f1 | f2 | f3
----+----+------------
0 | a | {a0,b0,c0}
1 | b | {a1,b1,c1}
2 | c | {a2,b2,c2}
(3 rows)
contrib_regression=# SELECT * FROM dblink_get_result('dtest1') AS t1(f1 int, f2 text, f3 text[]);
f1 | f2 | f3
----+----+----
(0 rows)
contrib_regression=# SELECT * FROM
contrib_regression-# dblink_send_query('dtest1', 'select * from foo where f1 < 3; select * from foo where f1 > 6') AS t1;
t1
----
1
(1 row)
contrib_regression=# SELECT * FROM dblink_get_result('dtest1') AS t1(f1 int, f2 text, f3 text[]);
f1 | f2 | f3
----+----+------------
0 | a | {a0,b0,c0}
1 | b | {a1,b1,c1}
2 | c | {a2,b2,c2}
(3 rows)
contrib_regression=# SELECT * FROM dblink_get_result('dtest1') AS t1(f1 int, f2 text, f3 text[]);
f1 | f2 | f3
----+----+---------------
7 | h | {a7,b7,c7}
8 | i | {a8,b8,c8}
9 | j | {a9,b9,c9}
10 | k | {a10,b10,c10}
(4 rows)
contrib_regression=# SELECT * FROM dblink_get_result('dtest1') AS t1(f1 int, f2 text, f3 text[]);
f1 | f2 | f3
----+----+----
(0 rows)
PostgreSQL 9.2.7 2014-02-17 DBLINK_GET_RESULT(3)