06-02-2008
First two columns should match
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1. Shell Programming and Scripting
Hi everybody:
Could anybody tell me how I can delete repeated rows from a file?, this is, for exemple I have a file like this:
0.490 958.73 281.85 6.67985 0.002481
0.490 954.833 283.991 8.73019 0.002471
0.590 950.504 286.241 6.61451 0.002461
0.690 939.323 286.112 6.16451 0.00246
0.790... (8 Replies)
Discussion started by: tonet
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2. Shell Programming and Scripting
I have a file content like below.
"0000000","ABLNCYI","BOTH",1049,2058,"XYZ","5711002","","Y","","","","","","","",""
"0000000","ABLNCYI","BOTH",1049,2058,"XYZ","5711002","","Y","","","","","","","",""
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3. Shell Programming and Scripting
Help
How to delete all blank rows in log file (4 Replies)
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4. Shell Programming and Scripting
Hello to all members,
I am very new in unix stuff (shell scripting), but a want to learn a lot. I am a ex windows user but now i am absolutely Linux super user... :D
So i am tryng to made a function to do this:
I have two csv files only with numbers, the first one a have:
1
2
3
4
5... (6 Replies)
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5. Shell Programming and Scripting
I need to delete rows based on the number of lines in a different file, I have a piece of code with me working but when I merge with my C application, it doesnt work.
sed '1,'\"`wc -l < /tmp/fileyyyy`\"'d' /tmp/fileA > /tmp/filexxxx
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6. UNIX for Advanced & Expert Users
Say i have a file with X rows and Y columns....i see that in some of the rows,some columns are blank (no value set)...i wish to delete such rows....how can it be done?
e.g
181766 100 2009-06-04
184443 2009-06-04
10962 151 2009-06-04
161 2009-06-04... (7 Replies)
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7. Shell Programming and Scripting
Hi
I do have a text file with 1000's of lines with 1 row and column with a specific pattern.
1102
1
1
1
1
1234
1
1
1
1
1009
1
1
1
1
1056
1 (3 Replies)
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8. Shell Programming and Scripting
I have a Unix file with 200,000 records, and need to remove all records from the file that have the character ‘I' in position 68 (68 bytes from the left). I have searched for similar problems and it appears that it would be possible with sed, awk or perl but I do not know enough about any of these... (7 Replies)
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9. Shell Programming and Scripting
Hi all,
I have a big file (about 6 millions rows) and I have to delete same occurrences, stored in a small file (about 9000 rews). I have tried this:
while read line
do
grep -v $line big_file > ok_file.tmp
mv ok_file.tmp big_file
done < small_file
It works, but is very slow.
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10. Shell Programming and Scripting
Hi All,
I am new to UNIX . Please help me in writing code to delete all records from the file where all columns after cloumn 5 in file is either 0, #MI or NULL.
Initial 5 columns are string
e.g.
"alsod" "1FEV2" "wjwroe" " wsse" "hd3" 1 2 34 #Mi
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LEARN ABOUT PHP
pg_copy_from
PG_COPY_FROM(3) PG_COPY_FROM(3)
pg_copy_from - Insert records into a table from an array
SYNOPSIS
bool pg_copy_from (resource $connection, string $table_name, array $rows, [string $delimiter], [string $null_as])
DESCRIPTION
pg_copy_from(3) inserts records into a table from $rows. It issues a COPY FROM SQL command internally to insert records.
PARAMETERS
o $connection
- PostgreSQL database connection resource.
o $table_name
- Name of the table into which to copy the $rows.
o $rows
- An array of data to be copied into $table_name. Each value in $rows becomes a row in $table_name. Each value in $rows should be
a delimited string of the values to insert into each field. Values should be linefeed terminated.
o $delimiter
- The token that separates values for each field in each element of $rows. Default is TAB.
o $null_as
- How SQL NULL values are represented in the $rows. Default is N ("\N").
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
pg_copy_from(3) example
<?php
$db = pg_connect("dbname=publisher") or die("Could not connect");
$rows = pg_copy_to($db, $table_name);
pg_query($db, "DELETE FROM $table_name");
pg_copy_from($db, $table_name, $rows);
?>
SEE ALSO
pg_copy_to(3).
PHP Documentation Group PG_COPY_FROM(3)