I'm trying to add some station photos so that all the stations will have a picture. However, when I try to copy the photos into the appropriate location, I get "Permission Denied" errors. How do I get the photos in there?
Since this directory is governed by CVS, copy the pictures into ~amostella/pharosdb/www/img/overview. Perform a 'cvs add' for each photo, then perform a 'cvs commit'. After the photos have been approved, they will be added to the working site.
I'm having trouble following exactly what and how harman.cgi is doing what it's doing. I think I'm getting confused with $action=post, method=post, -action=post and action=~/amostella/blah/blah/blah... How does the program decide what method is being used when it is first summoned?
In the <form...> tag, the 'action=' parameter identifies the URL of the script that the form's data is to be sent to. In DNR scripts, the '-action=' query string parameter identifies the action to be performed by the script, such as 'post', 'list', 'edit', etc. Within a <form...> tag, this query string parameter is usually specified by <input type='hidden' name='-action' value='...'>. Then, in the script that receives the form's contents, we normally store the value of the -action= parameter in a variable called $action.
In the following line from a cgi script, what is the $serlist++ portion doing?
foreach (split(/[,\s]+,$serlist)) { $serlist++; }
The keys of %serlist will be each of the series' listed as comma or whitespace separated things in the $serlist string. The values will be a count of how many times that series appears. The ++ (increment) operator is being applied to the $serlist entry of the hash. So, for instance, after this:
$serlist = "a b,c,a,d,b"; foreach(split (/[,\s]+/,$serlist)) { $serlist++; }
The %serlist hash will look like this:
a => 2 b => 2 c => 1 d => 1
I am writing a bash script and need to execute a long/complicated command several times. How can I store the command in a variable and then later use that variable to execute the command at the appropriate times?
Create the variable with either quotes or double quotes, as such:
time='date +M:%S' or time="date +M:%S"
Don't use back quotes as this will tell the computer to execute the command immediately and store the results in the variable $time.
To execute, do one of the following:
echo "The time is now..." $time
This way, the shell will expand the variable $time, treating it as a command. To execute the command as part of a string:
echo "The time is now... $($time)"
What exactly does PDB::SCRIPT do?
$PDB::SCRIPT is the content of the environment variable. In a CGI program, this will be something like '/~duff/pharosdb/cgi-bin/qc.cgi' if I were using a URL like
http://wip.cbi.tamucc.edu/~duff/pharosdb/cgi-bin/qc.cgi/001/today,-14d
Ports of Interest
| Jet Direct | 9100 |
| Printer Port | 515 |
| Internet Printing Protocol | 631 |
| http | 80 |
How do I do a search and replace in vi?
%s/pattern/replacement/g
The '%' means to perform this operation for all lines. '/g' means perform globally on the line. You can also use the '/c' option to confirm the substitution, like so:
%s/pattern/replacement/gc
If you only want to perform the substitution of a select few lines, you can use one of the following:
| 10,50s/pattern/replacement/g | only for lines 10 through 50 |
| .,+10s/pattern/replacement/g | from the current line to 10 lines later |
| /foo/,/bar/s/pattern/replacement/g | from the line matching 'foo' to the line matching 'bar' |
What is a 'hash-slice' in Perl?
If you want to get a list of specific values from a hash based on specific keys, then you can take a slice of a hash like this:
($a, $b, $c) = @hash{$keya, $keyb, $keyc};
How do you view environmental variables from the web?
Set $EnableDiag = 1 in config.php and then add '?action=diag' to the end of the URL.
Where might I find info on using templates in PmWiki?
http://www.pmwiki.org/wiki/PmWiki/LayoutBasics http://www.pmwiki.org/wiki/PmWiki/PageLayout http://www.pmwiki.org/wiki/PmWiki/LayoutAdvanced http://www.pmwiki.org/wiki/Cookbook/Skins
Contact Information: amostella@lighthouse.tamucc.edu
Texas A&M University-Corpus Christi