Thanks Alister for the concept. I have 3 related queries please:
1)
It's confirmed that SHELL parses or splits the fields based on IFS at command substitution or variable evaluation.
But how a command line is split into fields? Here IFS isn't considered!
2)
why the space character displayed when not quoted?
3) The effect of double quotes :
The former command displays the filenames in a single line with a space in between 2 names.
The latter displays as the 'ls' output is.i,e. one name with newline character in each line.
May I conclude that when quoted, the command hasn't converted the newline character to a space which it was doing when not quoted. That means, here double quotes is interpreted by command also and not only by SHELL.
I'm having some peculiar performance issues with my Gigabit Lan.
I have some 100Mb devices so I can't do the necessary "jumbo Frame" tweaks for absolute optimum performance as I'd prevent them access.
I'm getting appauling transfer rates sending files to the linux machine, around 10 Mbps 3%... (0 Replies)
Whenever I sftped a particular gzipped file to a particular directory and then try to unzip it, I get Permission Denied error.
With this file even I cannot do chmod. though the file permissions are -rw-r--r--
When same file I sftp to a different location I am able to gunzip it.
Directory... (0 Replies)
Hi all,
Ok os heres my situation. I have created a database style program that stores a persons info (name,address,phone number etc.) in a file ("database"). after i read in all the values above, i assign them to a line variable:
line="$name^$address^$phonenum" >> phonebuk
as you can see... (1 Reply)
Hi!
I am working in korn shell. I want to reset the dimiliter for the set command to "|" but instead of a command prompt return I am getting something as below
After issuing the command I am getting this....as if the shell is expecting something else. Can anybody suggest what's the problem.
... (2 Replies)
Scenario:
Step 1. I'm logging into AIX server using user id called user1
Step 2. I'm traversing to home directory of user2
Note: This user2's home directory has the permissions drwxr-s---
Step 3. I'm issuing command pwd there. I'm getting the expected output.
Step 4. I'm issuing the... (3 Replies)
hi I keep getting an error with this nested if statement and am getting the error unexpected end of file, can anyone help me as to why this wont execute?
#!/bin/bash
#script to check wether the -i -v statements run correctly
removeFile ()
{
mv $1 $HOME/deleted
}... (3 Replies)
I am using bash and resetting IFS as below when reading the command line arguments. I do this so I can call my script as in Ex1.
Ex1: ./synt2d-ray3dmod.bash --xsrc=12/20/30
This allows me to split both sides so that when I do "shift"
I can get 12/20/30
What I do not understand is... (21 Replies)
Hi ,
i am in my initial learning phase of unix. i was going thru the function part.
below is the example which was there but i am not able to understand logic and the use of IFS(internal field separator)
lspath() {
OLDIFS="$IFS"
IFS=:
for DIR in $PATH ; do echo $DIR ; done
IFS="$OLDIFS"... (8 Replies)
Discussion started by: scriptor
8 Replies
LEARN ABOUT PHP
mssql_field_seek
MSSQL_FIELD_SEEK(3)MSSQL_FIELD_SEEK(3)mssql_field_seek - Seeks to the specified field offsetSYNOPSIS
bool mssql_field_seek (resource $result, int $field_offset)
DESCRIPTION
Seeks to the specified field offset. If the next call to mssql_fetch_field(3) won't include a field offset, this field would be returned.
PARAMETERS
o $result
- The result resource that is being evaluated. This result comes from a call to mssql_query(3).
o $field_offset
- The field offset, starts at 0.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
Using mssql_field_seek(3) on the example for mssql_fetch_field(3)
<?php
// Connect to MSSQL and select the database
mssql_connect('MANGOSQLEXPRESS', 'sa', 'phpfi');
mssql_select_db('php');
// Send a select query to MSSQL
$query = mssql_query('SELECT * FROM [php].[dbo].[persons]');
// Construct table
echo '<h3>Table structure for 'persons'</h3>';
echo '<table border="1">';
// Table header
echo '<thead>';
echo '<tr>';
echo '<td>Field name</td>';
echo '<td>Data type</td>';
echo '<td>Max length</td>';
echo '</tr>';
echo '</thead>';
// Dump all fields
echo '<tbody>';
for ($i = 0; $i < mssql_num_fields($query); ++$i) {
// Fetch the field information, notice the
// field_offset parameter is not set. See
// the mssql_field_seek call below
$field = mssql_fetch_field($query);
// Print the row
echo '<tr>';
echo '<td>' . $field->name . '</td>';
echo '<td>' . strtoupper($field->type) . '</td>';
echo '<td>' . $field->max_length . '</td>';
echo '</tr>';
// Move the internal seek pointer to the next
// row in the result set
mssql_field_seek($query, $i + 1);
}
echo '</tbody>';
echo '</table>';
// Free the query result
mssql_free_result($query);
?>
SEE ALSO mssql_fetch_field(3).
PHP Documentation Group MSSQL_FIELD_SEEK(3)