delete rows in a file based on the rows of another file
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.
Can anyone give me an alternate solution for the above
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)
Hi
I have a file having 1000 rows. Now I would like to remove 10 rows from it. Plz give me the script.
Eg:
input file like
4 1 4500.0 1
5 1 1.0 30
6 1 1.0 4500
7 1 4.0 730
7 2 500000.0 730
8 1 785460.0 45
8 7 94255.0 30
9 1 31800.0 30
9 4 36000.0 30
10 1 15000.0 30... (5 Replies)
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)
I have to find the number of rows in a file and delete those many rows in another file.
For example, if I have 3 rows in a file A, i have to delete first 3 rows in anothe file B,
I have the code, it works as standalone, when I merge this with m application (c with unix), it doesnt work.
... (2 Replies)
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)
Hi All,
I have a file which is like this:
rows.dat
1 2 3 4 5 6
3 4 5 6 7 8
7 8 9 0 4 3
2 3 4 5 6 7
1 2 3 4 5 6
I have another file with numbers like these (numbers.txt):
1
3
4
5
I want to read numbers.txt file line by line. The extract the row from rows.dat based on the... (3 Replies)
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.
How... (2 Replies)
I have 2 files,
file01= 7 columns, row unknown (but few)
file02= 7 columns, row unknown (but many)
now I want to create an output with the first field that is shared in both of them and then subtract the results from the rest of the fields and print there
e.g.
file 01
James|0|50|25|10|50|30... (1 Reply)
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
"malasl" "wses" "trwwwe" " wsse" "hd3" 1 2 0... (4 Replies)
Discussion started by: alok2082
4 Replies
LEARN ABOUT PHP
pg_num_rows
PG_NUM_ROWS(3)PG_NUM_ROWS(3)pg_num_rows - Returns the number of rows in a resultSYNOPSIS
int pg_num_rows (resource $result)
DESCRIPTION pg_num_rows(3) will return the number of rows in a PostgreSQL result resource.
Note
This function used to be called pg_numrows(3).
PARAMETERS
o $result
- PostgreSQL query result resource, returned by pg_query(3), pg_query_params(3) or pg_execute(3) (among others).
RETURN VALUES
The number of rows in the result. On error, -1 is returned.
EXAMPLES
Example #1
pg_num_rows(3) example
<?php
$result = pg_query($conn, "SELECT 1");
$rows = pg_num_rows($result);
echo $rows . " row(s) returned.
";
?>
The above example will output:
1 row(s) returned.
SEE ALSO pg_num_fields(3), pg_affected_rows(3).
PHP Documentation Group PG_NUM_ROWS(3)