I have one file in which some commands have written line line
i have to read lines from this file(file name passed as avariable)
and then i have to execute these commands..
how can i do it? (5 Replies)
Hi Guys,
I am trying to write a perl script to search a string "Name" in the file "FILE" and also want to create a new file and push the searched string Name line along with 10 lines following the same.
can anyone of you please let me know how to go about it ? (8 Replies)
Can someone tell me how I can do this?
e.g:
Say file1.txt contains:
today is monday
the 22 of
NOVEMBER
2010
and file2.txt contains:
the
11th
month
of
How do i replace the word NOVEMBER with (5 Replies)
i have a file1 with many lines. i have a script that will let me input a string. for example, APPLE. what i need to do is to copy all lines from file1 where i can find APPLE or any string that i specify and paste in on file 2
thanks in advance! (4 Replies)
Can someone tell me how I can do this?
e.g:
a=$(echo -e wert trewt ertert ertert ertert erttert
erterte
rterter
tertertert
ert)
How do i replace the STRING with $a?
I try this:
sed -i 's/STRING/'"$a"'/g' filename.ext
but this don' t work (2 Replies)
Hello All,
i am a newbie and need some help when reading a csv file in a bourne shell script. I want to read 10 lines, then wait for a minute and then do a reading of another 10 lines and so on in the same way. I want to do this till the end of file.
Any inputs are appreciated
... (3 Replies)
Hi all, the value in the following file is just an example. It could be a different value/network addresses.
Here is my example of initial output in a file name net.txt
Initial Output, net.txt
The goal is to produce the following format which is to convert from CIDR to Netmask... (6 Replies)
I have a file where every line includes four expressions with a caret in the middle (plus some other "words" or fields, always separated by spaces). I would like to extract from this file, all those lines such that each of the four expressions containing a caret appears in at least four different... (9 Replies)
Discussion started by: uncleMonty
9 Replies
LEARN ABOUT REDHAT
set_constraints
SET CONSTRAINTS(7) SQL Commands SET CONSTRAINTS(7)NAME
SET CONSTRAINTS - set the constraint mode of the current transaction
SYNOPSIS
SET CONSTRAINTS { ALL | constraint [, ...] } { DEFERRED | IMMEDIATE }
DESCRIPTION
SET CONSTRAINTS sets the behavior of constraint evaluation in the current transaction. In IMMEDIATE mode, constraints are checked at the
end of each statement. In DEFERRED mode, constraints are not checked until transaction commit.
Note: This command only alters the behavior of constraints within the current transaction. Thus, if you execute this command outside
of an explicit transaction block (such as one started with BEGIN), it will not appear to have any effect. If you wish to change the
behavior of a constraint without needing to issue a SET CONSTRAINTS command in every transaction, specify INITIALLY DEFERRED or INI-
TIALLY IMMEDIATE when you create the constraint.
When you change the mode of a constraint to be IMMEDIATE , the new constraint mode takes effect retroactively: any outstanding data modifi-
cations that would have been checked at the end of the transaction (when using DEFERRED) are instead checked during the execution of the
SET CONSTRAINTS command.
Upon creation, a constraint is always give one of three characteristics: INITIALLY DEFERRED, INITIALLY IMMEDIATE DEFERRABLE, or INITIALLY
IMMEDIATE NOT DEFERRABLE. The third class is not affected by the SET CONSTRAINTS command.
Currently, only foreign key constraints are affected by this setting. Check and unique constraints are always effectively initially immedi-
ate not deferrable.
COMPATIBILITY
SQL92, SQL99
SET CONSTRAINTS is defined in SQL92 and SQL99. The implementation in PostgreSQL complies with the behavior defined in the standard, except
for the PostgreSQL limitation that SET CONSTRAINTS cannot be applied to check or unique constraints.
SQL - Language Statements 2002-11-22 SET CONSTRAINTS(7)