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Top Forums Shell Programming and Scripting Execution problem unix commands in Perl CGI Post 302587963 by Corona688 on Friday 6th of January 2012 11:52:40 AM
Old 01-06-2012
In what way does it "not work"? What is the code which is "not working"?

From another thread:

Quote:
Originally Posted by Corona688
It's probably eating the backslash since perl double-quotes evaluate those. You may need to escape the escaping. You'll probably also need to escape those $ in your awk, since perl evaluates those into variables, and escape the double-quotes i the awk statement, so perl won't mistake them for its own.

I remember writing Perl like that: Line after line after line of nothing but system() and backticks [because I wanted to avoid using the shell]. Eventually I noticed they were starting entire bourne shells just to parse one "mv a b" and was horrified -- by avoiding the shell I'd actually used eight of them consecutively Smilie

Returning much later, I rewrote some of these "perl" scripts as shell, making them much smaller, simpler, and saner.

Code:
$ wc -l dispatch.pl
49 dispatch.pl
$ wc -l dispatch.sh
25 dispatch.sh
$

---------- Post updated at 10:41 AM ---------- Previous update was at 10:39 AM ----------

Is ssh configured to login without a password, there? You'll probably need to tell it what key files to use with ssh -i /path/to/key. You'll need to give the key the right permissions so the webserver can read it, too.

---------- Post updated at 10:43 AM ---------- Previous update was at 10:41 AM ----------

You may also find it useful to redirect standard error into standard output so you can see error messages from shell programs instead of them all being swallowed by the web server. Unfortunately, while trivial in a shell exec 2>&1, that's extremely difficult in perl.

---------- Post updated at 10:52 AM ---------- Previous update was at 10:43 AM ----------

"right permissions" so a webserver can read it would probably be 0600 or 0400, owned by apache:root
 

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PHOTON(1)																 PHOTON(1)

NAME
photon - generates photo albums SYNOPSIS
photon [OPTIONS] [PATH] DESCRIPTION
Photon generates clean, yet configurable, static HTML photo galleries. All of the work is done from the command line, and the resulting output can easily be configured by changing the template files found in /usr/share/photon/templates. To create a new template (skin), first create a new directory: mkdir -p ${HOME}/.photon/templates/my_theme/ Then copy the contents of /usr/share/photon/templates/photonv1/ to this new directory. Photon only needs three files to build pages: index.html used to display the content of a folder image.html used to display the page for an image movie.html used to display the page for a movie If a file is missing, then photon will throw an error and will not run. HOW TO BUILD A GALLERY
Quick start $ photon -o myoutputdir /photos Use the gimp plugin $ photon --resize-plugin=gimp -v -o myoutputdir /photos Change the size for all images and the thumbnail and keep the original photo $ photon --sizelist=0,1600x1200,800x600 --thumbsize=320x240 -o myoutputdir /photos Create a gallery from your custom template (skin) $ photon -k my_theme -o myoutputdir /photos See photon help $ photon --help OPTIONS
-a | --awstats Insert Javascript for Awstats --awstats-url=URL Change default value for Awstats script url -c NAME | --comment Name of the comment file (default .comments) -d NUM | --display-columns=NUM Number of columns in index (default 3) -E | --no-exif Don't include EXIF information in HTML file -f | --force Overwrite non-image generated files (html, javascript, etc) (default no) -ff | --force --force Overwrite image files (default no) -h | --help Print this help -I | --no-index Do not generate the high level index.html -J | --no-javascript Do not use javascript (no shortcuts, ... ) -k | --skin=THEME Skin selector (default photonv1) --print-skins Print out available skins (templates) -l NUM | --display-lines=NUM Number of lines in index (default 5) -m | --movie Movie mode, include link to movie (*.mov) -o NAME | --output-directory=NAME Name of the output directory -s LIST | --sizelist=LIST Image sizes (default 0,1024x768,800x600,640x480). Zero, which is the default, uses the original resolution. W x H specifies the width and height of the image in pixels. -t SIZE | --thumbsize=SIZE Size of thumbnails (default 160x120) -v | --verbose Verbosely print information -V | --version Print program version number -z | --compress Compress the original image if selected (default copy the image) --exif-bordercolor=COLOR Exif window border color (default #008000) --exif-bgcolor=COLOR Exif window background color (default #f0fff0) --exif-fgcolor=COLOR Exif window text color (default black) --body-bgcolor=COLOR Body background color (default #ccccff) --img-bgcolor=COLOR Image background color (default white) --exclude=PATTERN Exclude files matching PATTERN --resize-plugin=PLUG Where PLUG is the program used to create thumbnails internal: fastest method (default) gimp: use Gimp>1.x (better quality) --resize-quality-low=NUM Quality for small image. 0 (bad) and 100 (good) --resize-quality-high=NUM Quality for big image 0 (bad) and 100 (good) --gimp-program=PROG use PROG for gimp SHORTCUTS WHILE VIEWING AN IMAGE
n/SPACE Go to the next image (with the same resolution) p/BACKSPACE Go to the previous image (with the same resolution) s Start/Stop the slideshow +/- Increase/Decrease by one second the slideshow's period h Show shortcut and help i Show Exif information z Change to the higher resolution [NOT YET IMPLEMENTED] SEE ALSO
gimp(1) AUTHOR
Written by Luc Saillard, <luc@saillard.org> Main web site: http://www.saillard.org/programs_and_patches/photon/ This manual page was written by Kevin Coyner <kcoyner@debian.org> for the Debian project but may be used by others. 12/16/2006 PHOTON(1)
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