Hello There!
I am trying to write this SIMPLE script in Bourne Shell but I keep on getting syntax errors. Can you see what I am doing wrong? I've done this before but I don't see the difference. I am simply trying to take the day of the week from our system and when the teachers sign on I want... (7 Replies)
Hi guys
sed -e "s/$<//g"
the $< can allow me to assign an input value to the variable right?
do the double quotes check the previous context? (1 Reply)
Hi, I am new to UNIX, and am learning from this tutorial : http://www.ee.surrey.ac.uk/Teaching/Unix/index.html
It keeps telling me to files downloaded from the internet (like .txt files) to the directory, and I dont know how to.
How do I add .txt files to my directory? Thanks. (6 Replies)
from command prompt I did grep two words on a same line for eg: grep abc | grep xyz and I got tht particular line, but I want to know when I vi that file how to directly search for that particular line? I appreciate if any one can provide answer, thanks in advance (2 Replies)
Hello all,
Quick question from a fairly new to Unix developer.
if
then
completedLogFile=$logfile.$(date +%Y%m%d-%H:%M:%S)
mv $logfile $completedLogFile
fi
I understand that this portion of code is simply copying a tmp logfile to a completed logfile when a condition is true. The... (2 Replies)
I'd like to list all userid's on the system that have a .bashrc file in their home directory with a command like "cat /etc/passwd | grep -f", however I'm not quite familiar with using grep. Any suggestions? (2 Replies)
When I have a file like this:
0084AF aj-123-a NAME Ajay NAME Kumar Engineer
015ED6 ck-345-c
020B25 ef-456-e
027458 pq-890-p NAME Peter NAME Salob Doctor
0318F0 xy-123-x NAME Xavier Arul NAME Yesu Supervisor
0344CA de-456-d
where - The first NAME is followed by... (6 Replies)
Discussion started by: ajay41aj
6 Replies
LEARN ABOUT PHP
is_link
IS_LINK(3) 1 IS_LINK(3)is_link - Tells whether the filename is a symbolic linkSYNOPSIS
bool is_link (string $filename)
DESCRIPTION
Tells whether the given file is a symbolic link.
PARAMETERS
o $filename
- Path to the file.
RETURN VALUES
Returns TRUE if the filename exists and is a symbolic link, FALSE otherwise.
EXAMPLES
Example #1
Create and confirm if a file is a symbolic link
<?php
$link = 'uploads';
if (is_link($link)) {
echo(readlink($link));
} else {
symlink('uploads.php', $link);
}
?>
ERRORS /EXCEPTIONS
Upon failure, an E_WARNING is emitted.
NOTES
Note
The results of this function are cached. See clearstatcache(3) for more details.
Tip
As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to "Supported Protocols and Wrappers" to determine
which wrappers support stat(3) family of functionality.
SEE ALSO is_dir(3), is_file(3), readlink(3).
PHP Documentation Group IS_LINK(3)