You can build a valid list programmatically of direcoties to display rather than have the user input a directory. Alternatively, you can build the list of directories to display and allow the user to enter a directory. If you programmatically build the list then all you have to worry about is validating input from your user. Can you elaborate more on what it is you are trying to build?
Code:
testf () {
dir=$reply
if [ -x /main/$dir ]
then
echo dir $dir exists
#useless use of the command break here #
FLAG=1
else
echo "no dir $dir exists, try again"
bflag=n
FLAG=0
fi
}
FLAG=0
typeset -u reply
while [ $FLAG -eq 0 ]
do
echo " a b "
echo " Enter one of the directories from above: \c"
read reply
case $reply in
A) testf
break
;;
B) testf
break
;;
*) echo $reply is not valid dir to choose - try again
esac
done
In Darwin, when typing "ifconfig en0 media 10baseT/UTP mediaopt half-duplex" I recieve the error message "ifconfig: SIOCSIFMEDIA: Operation not permitted". The same thing occurs when I sudo the command. Any suggestions?
Thanks... (1 Reply)
Hi there everyone,
I'm using redhat 7.3 at the moment and am currently trying to install chkconfig-1.3.5-3.i386.rpm , but when I type this command:
rpm -Uvh chkconfig-1.3.5-3.i386.rpm
I get the following error:
error: failed dependencies:
chkconfig = 1.2.24 is needed by... (3 Replies)
Please note: This solution does require some soldering ability.
If, like me today, you really really need to get into OpenBoot on a non booting Solaris machine (in my case an Ultra 5) but your USB dongle won't send <BREAK> then here is a -really- simple hardware hack that works a treat:
... (0 Replies)
i just installed Debian Lenny on HP DL380. After the server rebooted, it still asks for me to insert a cd rom. where can I exactly check the settings for the boot menu? Should it use the hard disk since I didnt insert any cd? pls advise (1 Reply)
...when the lines use both a colon and commas to separate the parts you want read as information.
The first version of this script used cut and other non-Bash-builtins, frequently, which made it nice and zippy with little more than average processor load in GNOME Terminal but, predictably, slow... (2 Replies)
We currently have a setup with SLES11SP1 where we have an AutoYaST ISO set up for automated network installs. I'm attempting to port this to SP2 to make new installs current, but I'm running into a few problems. The process seems the same, and after running mkisofs to build a new SP2 ISO the... (0 Replies)
After some thought.
I am uncomfortable issuing my professors name where, there may be unintended side effects from any negative responses/feedback. Willing to re post if I can omit school / professor publicly, but can message moderator for validation? I am here for knowledge and understanding,... (1 Reply)
I am working on an embbeded system. On the system in /usr/bin there are a host of programs one of which is called alsamixer. I want to use this utility but whenever I try to run any alsamixer commands I get and error message:
Error opening terminal: vt100
Anyone ever seen this error... (10 Replies)
Discussion started by: Circuits
10 Replies
LEARN ABOUT PHP
opendir
OPENDIR(3) 1 OPENDIR(3)opendir - Open directory handleSYNOPSIS
resource opendir (string $path, [resource $context])
DESCRIPTION
Opens up a directory handle to be used in subsequent closedir(3), readdir(3), and rewinddir(3) calls.
PARAMETERS
o $path
- The directory path that is to be opened
o $context
- For a description of the $context parameter, refer to the streams section of the manual.
RETURN VALUES
Returns a directory handle resource on success, or FALSE on failure.
If $path is not a valid directory or the directory can not be opened due to permission restrictions or filesystem errors, opendir(3)
returns FALSE and generates a PHP error of level E_WARNING. You can suppress the error output of opendir(3) by prepending '@' to the front
of the function name.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.0.0 | |
| | |
| | $path supports the ftp:// URL wrapper. |
| | |
| 4.3.0 | |
| | |
| | $path can also be any URL which supports direc- |
| | tory listing, however only the file:// URL wrap- |
| | per supports this in PHP 4 |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
opendir(3) example
<?php
$dir = "/etc/php5/";
// Open a known directory, and proceed to read its contents
if (is_dir($dir)) {
if ($dh = opendir($dir)) {
while (($file = readdir($dh)) !== false) {
echo "filename: $file : filetype: " . filetype($dir . $file) . "
";
}
closedir($dh);
}
}
?>
The above example will output something similar to:
filename: . : filetype: dir
filename: .. : filetype: dir
filename: apache : filetype: dir
filename: cgi : filetype: dir
filename: cli : filetype: dir
SEE ALSO is_dir(3), readdir(3), dir(3).
PHP Documentation Group OPENDIR(3)