10-09-2019
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I need to prompt for a response from a user to enter a path
read dest_dir?"Please Enter Directory :"
How do I do this until a valid directory is entered by the user. I can use
to check the existence of the directory. However when I try the following I cannot get it to work.
while ... (2 Replies)
Discussion started by: jerardfjay
2 Replies
2. Shell Programming and Scripting
I'm trying to write a script that identifies whether a directory of the form AWL.????????.IP exists. I have one that exists which is AWL.05301032.IP.
When I test like this: If ]
I get true, but when I test like this:
If ]
Or like this
If ]
Or any other variation of wild cards, I... (4 Replies)
Discussion started by: philplasma
4 Replies
3. UNIX for Dummies Questions & Answers
Hi.
I what to write a make file that inside a target I want to check if a directory exists.
some like:
### make
a:
if ;then
<command 1>
else
<command 2>
fi
### make end
Thanks a lot
---------------------- (2 Replies)
Discussion started by: zivsegal
2 Replies
4. Shell Programming and Scripting
Hello:
Can someone please help me figure out what is wrong here, my script does not move on to the "else" part even though there is no .ssh directory on my remote server:
$more putkey.sh
#!/bin/ksh
for server in `cat list`
do
if ; then
cat $HOME/.ssh/id_rsa.pub |ssh $server ' cat >>... (4 Replies)
Discussion started by: Sara-sh
4 Replies
5. Shell Programming and Scripting
Hey guys im trying to check if the directory exists
i get a syntax error on the elif statement iv tried using else and still same result im not sure. If the directory does not exist can i just insert mkdir /tmp/old under the elif once that part gets working
if ; then
#do nothing
elif
echo... (20 Replies)
Discussion started by: musicmancanora
20 Replies
6. Shell Programming and Scripting
cp $PATHLOGS/$DATE/*.* $TMP/logs_tmp/
cp $PATHLOGS/$DATE1/*.* $TMP/logs_tmp/
Before copying the files I have to check if the directory $DATE1 and $DATE2 exists.
If directory exists then, check if the folder contains some files.
if the file exists then, check if the file size is greater... (3 Replies)
Discussion started by: sandy1028
3 Replies
7. Shell Programming and Scripting
I want to perform SQL *Loader operation only if a file named "load.txt" exists in a directory "/home/loc/etc". Please help how to check this with a if condition. (8 Replies)
Discussion started by: vel4ever
8 Replies
8. Shell Programming and Scripting
Hi,
I am using solaris 10 OS and bash shell.just checking for small code snippet which follows below.
/export/home/vomappservers/spa/common/5.0
/export/home/vomappservers/spa/common/scripts
/export/home/vomappservers/spa/tools
/export/home/vomappservers/spa/scm5.0/SCCS... (5 Replies)
Discussion started by: muraliinfy04
5 Replies
9. Shell Programming and Scripting
Hi Gurus,
I have a requests to find if all the file in the filelist exist in certain directory.
example:
my filelist
abc
def
ddd
cde
afg
how can I find these 5 files exists at director /home/abc
Thanks in advance (7 Replies)
Discussion started by: ken6503
7 Replies
10. Shell Programming and Scripting
Hi guys,
I am beginner trying to learn unix. So any help is welcomed.
My requirement is to check whether is a file exists in a particular directory or not.
The directory path and filename are taken dynamically with user interaction. So the program should continue only if the $filename... (1 Reply)
Discussion started by: maris_markur
1 Replies
LEARN ABOUT PHP
clearstatcache
CLEARSTATCACHE(3) 1 CLEARSTATCACHE(3)
clearstatcache - Clears file status cache
SYNOPSIS
void clearstatcache ([bool $clear_realpath_cache = false], [string $filename])
DESCRIPTION
When you use stat(3), lstat(3), or any of the other functions listed in the affected functions list (below), PHP caches the information
those functions return in order to provide faster performance. However, in certain cases, you may want to clear the cached information. For
instance, if the same file is being checked multiple times within a single script, and that file is in danger of being removed or changed
during that script's operation, you may elect to clear the status cache. In these cases, you can use the clearstatcache(3) function to
clear the information that PHP caches about a file.
You should also note that PHP doesn't cache information about non-existent files. So, if you call file_exists(3) on a file that doesn't
exist, it will return FALSE until you create the file. If you create the file, it will return TRUE even if you then delete the file. How-
ever unlink(3) clears the cache automatically.
Note
This function caches information about specific filenames, so you only need to call clearstatcache(3) if you are performing multi-
ple operations on the same filename and require the information about that particular file to not be cached.
Affected functions include stat(3), lstat(3), file_exists(3), is_writable(3), is_readable(3), is_executable(3), is_file(3), is_dir(3),
is_link(3), filectime(3), fileatime(3), filemtime(3), fileinode(3), filegroup(3), fileowner(3), filesize(3), filetype(3), and fileperms(3).
PARAMETERS
o $clear_realpath_cache
- Whether to clear the realpath cache or not.
o $filename
- Clear the realpath and the stat cache for a specific filename only; only used if $clear_realpath_cache is TRUE.
RETURN VALUES
No value is returned.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.3.0 | |
| | |
| | Added optional $clear_realpath_cache and $file- |
| | name parameters. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
clearstatcache(3) example
<?php
$file = 'output_log.txt';
function get_owner($file)
{
$stat = stat($file);
$user = posix_getpwuid($stat['uid']);
return $user['name'];
}
$format = "UID @ %s: %s
";
printf($format, date('r'), get_owner($file));
chown($file, 'ross');
printf($format, date('r'), get_owner($file));
clearstatcache();
printf($format, date('r'), get_owner($file));
?>
The above example will output something similar to:
UID @ Sun, 12 Oct 2008 20:48:28 +0100: root
UID @ Sun, 12 Oct 2008 20:48:28 +0100: root
UID @ Sun, 12 Oct 2008 20:48:28 +0100: ross
PHP Documentation Group CLEARSTATCACHE(3)