08-12-2016
Rudi,
It is a huge file of some 8 GB's, the prob is we have constraint of space.. Hence can't try...
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I have a m X n matrix written out to file, say like this:
1,2,3,4,5,6
2,6,3,10,34,67
1,45,6,7,8,8
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hi
i have file which hav following entries
1501,AAA,2.00
1525,AAA,2.00
1501,AAA,2.00
1525,AAA,2.00
1501,AAA,3.00
1525,AAA,3.00
1525,AAA,3.00
1501,AAA,3.00
1501,AAA,3.00
i want to have a o/p coloum wise
like
1501,AAA,13
1525,AAA,10
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3. Shell Programming and Scripting
Shell script for the below operation :
File "A" contains :
SEQ++1'
MOA+9:000,00:ABC'
RFF+AIK:000000007'
FII+PH+0170++AA'
NAD+PL+++XXXXXXXXXXX XXXXXXX XX++XXX XXXX XXXX X.X. XXXXXXXXX+++NL'
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4. Solaris
Hi,
I have two files. Want to make an addition of the fifth column of from both the files and redirect it to a third file.
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5. UNIX for Advanced & Expert Users
Hi All,
I have two txt files like this
File1:
no name
----------
12 aaaa
23 bbbb
55 cccc
File2
dname dno
------------
civil 33
mech 55
arch 66
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Hello All ,
I have a problem with summing of column by group
Input File -
COL_1,COL_2,COL_3,COL_4,COL_5,COL_6,COL_7,COL_8,COL_9,COL_10,COL_11
3010,21,1923D ,6,0,0.26,0,0.26,-0.26,1,200807
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i have a file which has a column that is unique
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the file looks like
ROLLNO,NAME ,SUB1,SUB2,SUB3,TOTAL,PERCENTAGE,RESULT
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Scottn, m really sorry but i have not got my answer yet.
my concern is how to delete the row !!!
i have a file which has a column that is unique
i am intending to serach it and if it is there to remove the row.
the file looks like
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9. Shell Programming and Scripting
awk '{ gsub(/....=/,""); print }' want.dat >final.dat
the above awk command which removes all the chars before and including '=' on the entire row. --thats what it meant be.:)
but i need to remove text on column-wise on each row.
many thanks,
EM
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10. Shell Programming and Scripting
Hi I have pasted sample data as below:- in data.txt
Please suggest any way out: as the 3rd field is
cat data.txt
22:37:34 STARTING abc
22:37:40 FAILURE sadn
00:06:42 STARTING asd
00:06:51 FAILURE ad
02:06:38 STARTING acs
02:06:46 FAILURE cz
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LEARN ABOUT MOJAVE
set_constraints
SET
CONSTRAINTS(7) SQL Commands SET CONSTRAINTS(7)
NAME
SET CONSTRAINTS - set constraint checking modes for the current transaction
SYNOPSIS
SET CONSTRAINTS { ALL | name [, ...] } { DEFERRED | IMMEDIATE }
DESCRIPTION
SET CONSTRAINTS sets the behavior of constraint checking within the current transaction. IMMEDIATE constraints are checked at the end of
each statement. DEFERRED constraints are not checked until transaction commit. Each constraint has its own IMMEDIATE or DEFERRED mode.
Upon creation, a constraint is given one of three characteristics: DEFERRABLE INITIALLY DEFERRED, DEFERRABLE INITIALLY IMMEDIATE, or NOT
DEFERRABLE. The third class is always IMMEDIATE and is not affected by the SET CONSTRAINTS command. The first two classes start every
transaction in the indicated mode, but their behavior can be changed within a transaction by SET CONSTRAINTS.
SET CONSTRAINTS with a list of constraint names changes the mode of just those constraints (which must all be deferrable). The current
schema search path is used to find the first matching name if no schema name is specified. SET CONSTRAINTS ALL changes the mode of all
deferrable constraints.
When SET CONSTRAINTS changes the mode of a constraint from DEFERRED to IMMEDIATE, the new mode takes effect retroactively: any outstanding
data modifications that would have been checked at the end of the transaction are instead checked during the execution of the SET CON-
STRAINTS command. If any such constraint is violated, the SET CONSTRAINTS fails (and does not change the constraint mode). Thus, SET CON-
STRAINTS can be used to force checking of constraints to occur at a specific point in a transaction.
Currently, only foreign key constraints are affected by this setting. Check and unique constraints are always effectively not deferrable.
Triggers that are declared as ``constraint triggers'' are also affected.
NOTES
This command only alters the behavior of constraints within the current transaction. Thus, if you execute this command outside of a trans-
action block (BEGIN/COMMIT pair), it will not appear to have any effect.
COMPATIBILITY
This command complies with the behavior defined in the SQL standard, except for the limitation that, in PostgreSQL, it only applies to for-
eign-key constraints.
SQL - Language Statements 2010-05-14 SET CONSTRAINTS(7)