A few observations here:
1. As suggested earlier, either "escape" the double quotes surrounding "hello" or use single quote i.e. use
2. By doing >$file two times the second echo (i.e. good bye) will over write $file. Instead use
to append the contents of the echo into the file.
3. It is a best practice to refrain from creating elaborate scripts using the echo command. Instead use shell "here documents"
is certainly a lot cleaner.
Here is the file named tuwork..........
209 200 WZ 6529 SKTNCA01X4X C POI LODI LODI 738 SKTNCA0127T LOD
Here is the scipt.......
cat tuwork |
while
read rva
do
num=`echo $rva | cut -d" " -f1-2`
reg=`echo $rva | cut -c10`
ocn=`echo $rva | cut -c12-15`
x=`echo $rva | cut -c29`... (3 Replies)
So in my shell i execute:
{ while true; do echo string; sleep 1; done } | read line This waits one second and returns.
But
{ while true; do /bin/echo string; sleep 1; done } | read line continues to run, and doesn't stop until i kill it explicitly.
I have tried this in bash as well as zsh,... (2 Replies)
echo `echo ` doesn't echoes anything. And it's logic. But
echo `echo `echo ` ` does echoes "echo". What's the logic of it? the `echo `echo ` inside of the whole (first) echo, echoes nothing, so the first echo have to echo nothing but echoes "echo"
(too much echoing :P):o (2 Replies)
Hi everyone,
I'm echo some text with extended ascii characters as below:
echo -e "Pr\xE9sentation du spectacle" > output
or
echo -e "Présentation du spectacle" > outputIf I open the file created I see this text
Présentation du spectacleThe text is shown correctly in this created file when... (7 Replies)
hi,
just wanted to make a shortcut of this one
a="a b c"
b=`echo $a | awk '{print $2}'`
echo "the middle is $b"
why can't i do this:
a="a b c"
echo "the middle is ${`echo $a | awk '{print $2}'`}" <- bad substitution :wall:
thanks (6 Replies)
I came across and unexpected behavior with redirections in tcsh. I know, csh is not best for redirections, but I'd like to understand what is happening here.
I have following script (called out_to_streams.csh):
#!/bin/tcsh -f
echo Redirected to STDOUT > /dev/stdout
echo Redirected to... (2 Replies)
# echo 'export HISTFILE=/var/log/history/history_$(uname -n)_$(date +%Y:%b:%d:%H:%M)_$(who am i | awk '{print \$1}')' >> new_file
#
# cat new_file
export HISTFILE=/var/log/history/history_$(uname -n)_$(date +%Y:%b:%d:%H:%M)_$(who am i | awk {print $1})
#
Now how to echo the quotes around the... (2 Replies)
I am using echo in bash. Have created a function prargv which takes a number of arguments.
Example:
prargv "-e" "--examples"
Inside prargv, I want to print all the arguments using echo
echo "$@"
This returns
--examples
rather than
-e --examples"
This problem can be fixed... (3 Replies)
Hi guys,
Been messing around with shell programming for a couple of days and I found something that was pretty odd in the behavior of the echo command. Below is an example-:
When I type the following in my /home directory from my lxterminal in Debian-:
echo "`ls -l`"
I get the... (2 Replies)
Is there a better way to show the results of a file on the screen other then less , which exits the program and displays:
Input Status
AB026906.1:c.274G>T OK
c:/Users/cmccabe/Desktop/Python27/syntax_verify.txt (END)
authenticate() {
printf "\n\n"
less... (4 Replies)
Discussion started by: cmccabe
4 Replies
LEARN ABOUT PHP
mssql_num_fields
MSSQL_NUM_FIELDS(3)MSSQL_NUM_FIELDS(3)mssql_num_fields - Gets the number of fields in resultSYNOPSIS
int mssql_num_fields (resource $result)
DESCRIPTION mssql_num_fields(3) returns the number of fields in a result set.
PARAMETERS
o $result
- The result resource that is being evaluated. This result comes from a call to mssql_query(3).
RETURN VALUES
Returns the number of fields, as an integer.
EXAMPLES
Example #1
mssql_num_fields(3) example
<?php
// Connect to MSSQL and select the database
$link = mssql_connect('KALLESPCSQLEXPRESS', 'sa', 'phpfi');
mssql_select_db('php', $link);
// Select some data from our database
$data = mssql_query('SELECT [name], [age] FROM [php].[dbo].[persons]');
// Construct a table
echo '<table border="1">';
$header = false;
// Iterate through returned results
while ($row = mssql_fetch_array($data)) {
// Build the table header
if (!$header) {
echo '<thead>';
echo '<tr>';
for ($i = 1; ($i + 1) <= mssql_num_fields($data); ++$i) {
echo '<td>' . ucfirst($row[$i]) . '</td>';
}
echo '</tr>';
echo '</thead>';
echo '<tbody>';
$header = true;
}
// Build the row
echo '<tr>';
foreach($row as $value) {
echo '<td>' . $value . '</td>';
}
echo '</tr>';
}
// Close table
echo '</tbody>';
echo '</table>';
// Clean up
mssql_free_result($data);
mssql_close($link);
?>
SEE ALSO mssql_query(3), mssql_fetch_field(3), mssql_num_rows(3).
PHP Documentation Group MSSQL_NUM_FIELDS(3)