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Full Discussion: How to pause a shell script
Top Forums Shell Programming and Scripting How to pause a shell script Post 302400135 by McLennon on Tuesday 2nd of March 2010 09:38:08 AM
Old 03-02-2010
How to pause a shell script

Hi,

I've written a shell script to take photos with my camera.
After every picture taken, the picture is transmitted to the computer via usb and then deleted on the camera.
But sometimes there's an error and the picture is not deleted and so, after a certain time, the camera chip will be full.
When I try to delete the pictures on the camera manually, it'll shut down, because the script also wants to access it.

I don't wanna stop the script because it's quite a long complex measurement.
Is there a possibillity to pause the script somehow from outside?

Thank you very much!
 

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GPHOTO2(1)																GPHOTO2(1)

NAME
gphoto2 - command-line gphoto2 client SYNOPSIS
gphoto2 [--debug] [-q | --quiet] [-v | --verbose] [-h | --help] [--list-cameras] [--usb-usermap-script NAME] [--print-usb-usermap] [--list-ports] [--stdout] [--stdout-size] [--auto-detect] [--port PATH] [--speed SPEED] [--camera MODEL] [--filename FILENAME] [--usbid USBID] [-a | --abilities] [--folder FOLDER] [[-R | --recurse] | --norecurse] [-l | --list-folders] [-L | --list-files] [-m NAME | --mkdir NAME] [-r NAME | --rmdir NAME] [-n | --num-files] [-p RANGE | --get-file RANGE] [-P | --get-all-files] [-t RANGE | --get-thumbnail RANGE] [-T | --get-all-thumbnails] [-r RANGE | --get-raw-data RANGE] [--get-all-raw-data] [--get-audio-data RANGE] [--get-all-audio-data] [-d RANGE | --delete-file RANGE] [-D | --delete-all-files] [-u FILENAME | --upload-file FILENAME] [--capture-preview] [--capture-image] [--capture-movie] [--capture-sound] [--capture-show-info RANGE] [--summary] [--manual] [--about] [--shell] DESCRIPTION
gphoto2(3) is a cross-platform digital camera library, and gphoto2(1) is a command-line client for it. Where an option takes a range of files, thumbnails, or other data, they are numbered beginning at 1. A range is a comma-separated list of numbers or spans (``first-last''). Ranges are XOR (exclusive or), so that ``1-5,3,7'' is equivalent to ``1,2,4,5,7''. --debug Turn on debugging. -q, --quiet Quiet output (default=verbose). -v, --version Display version and exit. -h, --help Display a short usage message. --list-cameras List supported camera models. --usb-usermap-script NAME Use NAME as the hotplug usb script used in the output of --print-usb-usermap. Default is "usbcam". --print-usb-usermap For every camera supported by your version of gphoto2, print the corresponding line for inclusion into the usb.usermap hotplug con- fig file. The script name used in these lines is specified with the --usb-usermap-script option. --list-ports List supported port devices. --stdout Send file to stdout. --stdout-size Print filesize before data. --auto-detect List auto-detected cameras. --port PATH Specify port device. --speed SPEED Specify serial transfer speed. --camera MODEL Specify camera model. Most model names contain spaces: remember to enclose the name in quotes so that the shell knows it is one parameter. For example: --camera "Kodak DC240". --filename FILENAME Specify a filename. --usbid USBID (Expert only) Override USB IDs. -a, --abilities Display camera abilities. -f, --folder FOLDER Specify camera folder (default="/"). -R, --recurse Recursion (default for download). --no-recurse No recursion (default for deletion). -l, --list-folders List folders in folder. -L, --list-files List files in folder. -m, --mkdir NAME Create a directory. -r, --rmdir NAME Remove a directory. -n, --num-files Display number of files. -p, --get-file RANGE Get files given in range. -P, --get-all-files Get all files from folder. -t, --get-thumbnail RANGE Get thumbnails given in range. -T, --get-all-thumbnails Get all thumbnails from folder. -r, --get-raw-data RANGE Get raw data given in range. --get-all-raw-data Get all raw data from folder. --get-audio-data RANGE Get audio data given in range. --get-all-audio-data Get all audio data from folder. --delete-files RANGE Delete files given in range. --delete-all-files Delete all files in folder. -u, --upload-file FILENAME Upload a file to camera. --capture-preview Capture a quick preview. --capture-image Capture an image. --capture-movie Capture a movie. --capture-sound Capture an audio clip. --show-info RANGE Show info. --summary Summary of camera status. --manual Camera driver manual. --about About the camera driver. --shell Start the gphoto2 shell, an interactive environment. See SHELL MODE for a detailed description. SHELL MODE
The following commands are available: cd Change to a directory on the camera. lcd Change to a directory on the local machine. exit, quit, q Exit the gphoto2 shell. get Download the file to the current directory. get-thumbnail Download the thumbnail to the current directory. get-raw Download raw data to the current directory. show-info Show information. delete Delete a file or directory. show-exif Show EXIF information (only if compiled with EXIF support). help, ? Displays command usage. ls List the contents of the current directory on the camera. SEE ALSO
gphoto2(3), gphoto2.txt, gphoto2-cli.txt, http://www.gphoto.org/ EXAMPLES
gphoto2 --list-files List files on camera. gphoto2 --get-file 7-13 Get files number 7 through 13 from the list output by gphoto2 --list-files. gphoto2 --usb-usermap-script gphoto2cam --print-usb-usermap >> /etc/hotplug/usb.usermap Append a line to the hotplug config file /etc/hotplug/usb.usermap for every supported camera, using /etc/hotplug/usb/gphoto2cam for setting up permissions correctly. AUTHOR
The gPhoto2 Team. Man page edited by Tim Waugh <twaugh@redhat.com>. February 2002 GPHOTO2(1)
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