11-01-2011
[Solved] Value of a variable is not recognised for commands comes from external file
Hi,
my script is setting a variable with value and this variable is present in my another command that is coming from external file and this command is internally called after this variable is set. but while execution of this command, the value is not retrieved properly.
say,
my script has a variable PWD and it is set to some value say abcd
export PWD=abcd
echo $PWD #here it is returinng the value abcd perfectly.
in the same shell script i am using some piece of code which will bring the unix commands from a external file and execute it one by one. one of the commands is echo $PWD
while execution at this time, it is not returning the value abcd
echo $PWD
simply it is returning $PWD instead of abcd
what is the mistake i do not understand. Please suggest.
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi, I have a script that interacts with a config file in the format:
file1.txt
file2.txt
file3.txt
file4.txt
file5.txt
file6.txt
I would like to return the Category, when given the file name. (11 Replies)
Discussion started by: MoreCowbell
11 Replies
2. Web Development
Hi,
I am trying to implement a server monitoring dashboard using cgi scripting. I am planning to run the necessary unix scripts from the web page using cgi. This method works fine for standard unix commands but I am unable to run some external unix commands (like swadm show_processes, swadm... (9 Replies)
Discussion started by: jofinjoseph
9 Replies
3. Shell Programming and Scripting
greetings!
how do i get an env variable that looks like this when echoed:
into a file that looks like this:
keeping in mind that the two constants are the fields from the env variable will always be in odd positions of the string that need to go into the file AND they will always start... (3 Replies)
Discussion started by: crimso
3 Replies
4. Shell Programming and Scripting
hello. this is the code
#!/bin/sh
total1024=0
total2048=0
total8192=0
if ; then
if ; then
while read variable
do
if ; then
total1024=$(( $total1024 + 1 ))
fi
if ; then
total2048=$((... (4 Replies)
Discussion started by: Telis
4 Replies
5. Shell Programming and Scripting
Hi all, im having snags creating a variable which uses commands like cut and grep. In the instance below im simply trying to take a value from another file and assign it to a variable. When i do this it only prints the $a rather than the actual value. I know its simple but does anyone have any... (1 Reply)
Discussion started by: somersetdan
1 Replies
6. Shell Programming and Scripting
is it possible to assign value to an array variable from an external file?? if yes then how??
I am using below code but its not working.
#!bin/bash
myarray < file_name
echo ${mayarray} (6 Replies)
Discussion started by: mukulverma2408
6 Replies
7. Shell Programming and Scripting
Hi,
How can I modify the FILETYPE command ?
I want to provide the file extension, like txt, root .?
Thanks,
#!/bin/bash
FROM=$1
TO=$2
FILETYPE=$3
... (4 Replies)
Discussion started by: nrjrasaxena
4 Replies
8. Shell Programming and Scripting
Hi there
I have the following code
SDFFILE_SRC=$BACKEND_DIR/$SDFFILE_MIN_tar
SDFFILE_DST=$SIM_DIR/$SDFFILE_MIN
if ]
....
....
....
fi
Simply I need to check if $SDFFILE_SRC isa newer than $SDFFILE_DST or $SDFFILE_DST does not exist then execute the IF Body.
Although the the... (2 Replies)
Discussion started by: aelhosiny
2 Replies
9. Shell Programming and Scripting
data:
bblah1_blah2_blah3_blah4_blah5
bblahA_blahB_blahC_blahD_blahE
im using the following code to grab the field i want:
cat data | while IFS='_' read v1 v2 v3 v4 v5; do printf '%s\n' "${v4}"; done
im catting data here. in the real world, the exact content of data will be in a variable.... (4 Replies)
Discussion started by: SkySmart
4 Replies
LEARN ABOUT PHP
sqlsrv_connect
SQLSRV_CONNECT(3) SQLSRV_CONNECT(3)
sqlsrv_connect - Opens a connection to a Microsoft SQL Server database
SYNOPSIS
resource sqlsrv_connect (string $serverName, [array $connectionInfo])
DESCRIPTION
Opens a connection to a Microsoft SQL Server database. By default, the connection is attempted using Windows Authentication. To connect
using SQL Server Authentication, include "UID" and "PWD" in the connection options array.
PARAMETERS
o $serverName
- The name of the server to which a connection is established. To connect to a specific instance, follow the server name with a
forward slash and the instance name (e.g. serverNamesqlexpress).
o $connectionInfo
- An associative array that specifies options for connecting to the server. If values for the UID and PWD keys are not specified,
the connection will be attempted using Windows Authentication. For a complete list of supported keys, see SQLSRV Connection
Options.
RETURN VALUES
A connection resource. If a connection cannot be successfully opened, FALSE is returned.
EXAMPLES
Example #1
Connect using Windows Authentication.
<?php
$serverName = "serverNamesqlexpress"; //serverNameinstanceName
// Since UID and PWD are not specified in the $connectionInfo array,
// The connection will be attempted using Windows Authentication.
$connectionInfo = array( "Database"=>"dbName");
$conn = sqlsrv_connect( $serverName, $connectionInfo);
if( $conn ) {
echo "Connection established.<br />";
}else{
echo "Connection could not be established.<br />";
die( print_r( sqlsrv_errors(), true));
}
?>
Example #2
Connect by specifying a user name and password.
<?php
$serverName = "serverNamesqlexpress"; //serverNameinstanceName
$connectionInfo = array( "Database"=>"dbName", "UID"=>"userName", "PWD"=>"password");
$conn = sqlsrv_connect( $serverName, $connectionInfo);
if( $conn ) {
echo "Connection established.<br />";
}else{
echo "Connection could not be established.<br />";
die( print_r( sqlsrv_errors(), true));
}
?>
Example #3
Connect on a specifed port.
<?php
$serverName = "serverNamesqlexpress, 1542"; //serverNameinstanceName, portNumber (default is 1433)
$connectionInfo = array( "Database"=>"dbName", "UID"=>"userName", "PWD"=>"password");
$conn = sqlsrv_connect( $serverName, $connectionInfo);
if( $conn ) {
echo "Connection established.<br />";
}else{
echo "Connection could not be established.<br />";
die( print_r( sqlsrv_errors(), true));
}
?>
NOTES
By default, the sqlsrv_connect(3) uses connection pooling to improve connection performance. To turn off connection pooling (i.e. force a
new connection on each call), set the "ConnectionPooling" option in the $connectionOptions array to 0 (or FALSE). For more information, see
SQLSRV Connection Pooling.
The SQLSRV extension does not have a dedicated function for changing which database is connected to. The target database is specified in
the $connectionOptions array that is passed to sqlsrv_connect. To change the database on an open connection, execute the following query
"USE dbName" (e.g. sqlsrv_query($conn, "USE dbName")).
SEE ALSO
sqlsrv_close(3), sqlsrv_errors(3), sqlsrv_query(3).
PHP Documentation Group SQLSRV_CONNECT(3)