04-22-2013
Ya exactly dividing the file would be more hectic due do my large data set
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This is the cronjob
----------------------
root@a7germ:/home/paxtemp > crontab -l|grep test
57 * * * * /home/paxtemp/test_1.sh
0,5,10,15,20,25,30,35,40,45,50,55 * * * * /home/paxtemp/test.sh
root@a7germ:/home/paxtemp >
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2. UNIX for Dummies Questions & Answers
Hi All
I like to know how can we calculate the number of rows and the average of the values present in the file. I will not know what will be the rowcount, which will be dynamic in nature of the file.
eg.
29
33
48
30
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Hi,
i have 12 float variables in a bash file and i want to calculate the average of them.
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Dear all,
i have 200 values in a file. How can i calculate a weighted average and output into a new file avg.dat?
INPUT:
file1.dat
1.3453
2.434
2.345
.....
OUTPUT:
avg.dat
file1: 1.762
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Hey guys.....
I have many files (lets say 100 or more) of same size, and I want to create a new output file and calculate the average of first row fifth column in all files and print it in first row of output file, then 2nd row fifth col in all 100 files and print it in 2nd row of output... (1 Reply)
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I need to find the average from a file like:
data => BW:123 M:30 RTD:0 1 0 1 0 0 1 1 1 1 0 0 1 1 0'
data => BW:123 N:30 RTD:0 1 0 1 0 0 1 1 1 1 0 0 1 1 0'
data => BW:123 N:30 RTD:0 1 0 1 0 0 1 1 1 1 0 0 1 1 0'
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Hi
I have file like below
111,victor,48,12,36
342,Peter,54,58,30
476,Scott,25,36,48
567,Patty,74,17,95
I have written below code to calcualte avereage for every id
Victor = 48+12+36/3
#!/bin/ksh
/usr/xpg4/bin/awk '
BEGIN {FS=","} {sum=0; n=0;i=3 (1 Reply)
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I have some files with the following contents.I would like to calculate average of fifth column. How can I do this with awk?
file1
cat 95.9 152 78.0 17.9
rat 67.1 153 36.5 30.6
dog 81.4 154 68.1 13.3
dog 92.0 155 55.5 36.5
rat 73.8 156 23.9 49.9
file2
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LEARN ABOUT PHP
pg_lo_open
PG_LO_OPEN(3) PG_LO_OPEN(3)
pg_lo_open - Open a large object
SYNOPSIS
resource pg_lo_open (resource $connection, int $oid, string $mode)
DESCRIPTION
pg_lo_open(3) opens a large object in the database and returns large object resource so that it can be manipulated.
Warning
Do not close the database connection before closing the large object resource.
To use the large object interface, it is necessary to enclose it within a transaction block.
Note
This function used to be called pg_loopen(3).
PARAMETERS
o $connection
- PostgreSQL database connection resource. When $connection is not present, the default connection is used. The default connection
is the last connection made by pg_connect(3) or pg_pconnect(3).
o $oid
- The $OID of the large object in the database.
o $mode
- Can be either "r" for read-only, "w" for write only or "rw" for read and write.
RETURN VALUES
A large object resource or FALSE on error.
EXAMPLES
Example #1
pg_lo_open(3) example
<?php
$database = pg_connect("dbname=jacarta");
pg_query($database, "begin");
$oid = pg_lo_create($database);
echo "$oid
";
$handle = pg_lo_open($database, $oid, "w");
echo "$handle
";
pg_lo_write($handle, "large object data");
pg_lo_close($handle);
pg_query($database, "commit");
?>
SEE ALSO
pg_lo_close(3), pg_lo_create(3).
PHP Documentation Group PG_LO_OPEN(3)