09-19-2018
My wisdom comes from the man pages: man sed, plus, infrequently, info sed.
And, DON'T forget, regular consumption of these fora! Many a trick I learned in here. Above little one copies a line into the hold buffer (h), reads the next line (n), appends from the hold buffer (G), and prints (p). It depends on the lines always coming in pairs.
This User Gave Thanks to RudiC For This Post:
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Hi,
I want to write a shell script which increments a particular column in a row from a text file and then adds another row below the current row with the incremented value .
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Hi
I want to append line 2n to 2n-1 line where n=1...LastLine in my file.
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Actual File:
Hello
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Welcome
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Dear masters,
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i need a script that reads a wwn file like this:
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50:01:24:82:00:6c:a9:04
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Hi Friends,
I have a single column data like below.
1
2
3
4
5
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0
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this is the requirement
list.txt
table1
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table3
testfile.txt
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LEARN ABOUT PHP
fbsql_data_seek
FBSQL_DATA_SEEK(3) 1 FBSQL_DATA_SEEK(3)
fbsql_data_seek - Move internal result pointer
SYNOPSIS
bool fbsql_data_seek (resource $result, int $row_number)
DESCRIPTION
Moves the internal row pointer of the FrontBase result associated with the specified result identifier to point to the specified row num-
ber.
The next call to fbsql_fetch_row(3) would return that row.
PARAMETERS
o $
result -A result identifier returned by fbsql_query(3) or fbsql_db_query(3).
o $row_number
- The row number. Starts at 0.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
fbsql_data_seek(3) example
<?php
$link = fbsql_pconnect("localhost", "_SYSTEM", "secret")
or die("Could not connect");
fbsql_select_db("samp_db")
or die("Could not select database");
$query = "SELECT last_name, first_name FROM friends;";
$result = fbsql_query($query)
or die("Query failed");
// fetch rows in reverse order
for ($i = fbsql_num_rows($result) - 1; $i >=0; $i--) {
if (!fbsql_data_seek($result, $i)) {
printf("Cannot seek to row %d
", $i);
continue;
}
if (!($row = fbsql_fetch_object($result)))
continue;
echo $row->last_name . $row->first_name . "<br />
";
}
fbsql_free_result($result);
?>
PHP Documentation Group FBSQL_DATA_SEEK(3)