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Full Discussion: Nested sed commands
Top Forums Shell Programming and Scripting Nested sed commands Post 302930341 by sea on Friday 2nd of January 2015 12:02:38 PM
Old 01-02-2015
uhm am i misunderstanding something?
At first i thought the command just prints that list, now i assume it expects the user to do some input?

By my thinking, those grep and awk commands should work just as good as sed.
But, since it requires/expects user interaction, the output might remain empty until the choice was done.

If that applies, you could try to redirect the output to a file abort the task and parse the files output, catch the return value, and call the command again, this time with here-doc to pass the selected option.

hth

---------- Post updated at 18:02 ---------- Previous update was at 17:58 ----------

Quote:
Originally Posted by Nic2015
No index 3 is what i have to found and this value can change next time if i call this statement again. gphoto returns the current setting of the ISO on the digital camera and this can changing. So next time it could be the index 1, then 10 etc...
In that case you should make it a script:
Code:
#!/bin/bash
gphoto2 --get-config /main/$1 | \
    grep -v [LTC][auy]] | \
    grep ^$2" " | \
    awk '{print $3}'

Place it in (as example for yourself): $HOME/bin, lets say photo-conf.sh.
Give it execution falg:
Code:
chmod +x $HOME/bin/photo-conf.sh

And call it:
Code:
photo-conf.sh "imsettings/iso" 3

hth
 

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LEARN ABOUT CENTOS

sane-gphoto2

sane-gphoto2(5) 					   SANE Scanner Access Now Easy 					   sane-gphoto2(5)

NAME

       sane-gphoto2 - SANE backend for gphoto2 supported cameras

DESCRIPTION

       The  sane-gphoto2  library  implements  a  SANE	(Scanner Access Now Easy) backend that provides access to the digital cameras supported by
       gphoto2.  This backend has only been tested with a handful of cameras so far.  Patches to support other models are welcome.

       Because of the limited testing of this backend, it is commented out in /etc/sane.d/dll.conf by default.	Either the comment character  must
       be removed or the backend must be called explicitly.  E.g. `scanimage -d gphoto2' or `xscanimage gphoto2'.

DEVICE NAMES

       The current version of the backend only allows one camera to be connected.  The device name is always "0".

CONFIGURATION

       The  contents of the gphoto2.conf specify the characteristics of the camera to be used.	 Resolutions (high resolution, low resolution, and
       thumbnail size) are required since they are needed by the sane frontends, but can't be obtained through the gphoto2 interface.  Valid ports
       and cameras can be obtained by "gphoto2 --list-cameras" and "gphoto2 --list-ports".

       The dumpinquiry line causes some information about the camera to be printed.

       Empty lines and lines starting with a hash mark (#) are ignored.  A sample configuration file is shown below:

       The  "topfolder"  line  specifies  the  "fixed" part of the file path.  For example, on the Kodak DC-240, files are stored in the directory
       /DCIM/100DC240.	The /DCIM portion is constant, but 100DC240 will change and must be read from the camera.  In this case,  the  line  would
       read "topfolder=/DCIM"

       Some  cameras  don't implement a file structure and store all pictures in the "/" directory.  This is indicated by setting "subdirs=0" with
       "topfolder=/"

	      port=usb:
	      camera=Kodak DC240
	      # this is a comment
	      high_resolution=1280x960
	      low_resolution=640x480
	      thumb_resolution=160x120
	      dumpinquiry

FILES

       /etc/sane.d/gphoto2.conf
	      The backend configuration file (see also description of SANE_CONFIG_DIR below).

       /usr/lib64/sane/libsane-gphoto2.a
	      The static library implementing this backend.

       /usr/lib64/sane/libsane-gphoto2.so
	      The shared library implementing this backend (present on systems that support dynamic loading).

ENVIRONMENT

       SANE_CONFIG_DIR
	      This environment variable specifies the list of directories that may contain the configuration file.  Under  UNIX,  the  directories
	      are  separated  by a colon (`:'), under OS/2, they are separated by a semi-colon (`;').  If this variable is not set, the configura-
	      tion file is searched in two default directories: first, the current working directory (".") and then in /etc/sane.d.  If the  value
	      of the environment variable ends with the directory separator character, then the default directories are searched after the explic-
	      itly specified directories.  For example, setting SANE_CONFIG_DIR to "/tmp/config:" would result in directories  "tmp/config",  ".",
	      and "/etc/sane.d" being searched (in this order).

       SANE_DEBUG_GPHOTO2
	      If  the library was compiled with debugging support enabled, this environment variable controls the debug level for this backend.  A
	      value of 128 requests maximally copious debug output; smaller levels reduce verbosity.

       GP_DEBUG
	      Set to 1, 2, or 3, to enable various levels of debugging within the gphoto2 libraries.

SEE ALSO

       sane(7)

AUTHOR

       Peter S. Fales

       The manpage was largely copied from the dc210 manpage.

BUGS

       Many, no doubt.

       More general comments, suggestions,  and  inquiries  about  frontends  or  SANE	should	go  to	the  SANE  Developers  mailing	list  (see
       http://www.sane-project.org/mailing-lists.html  for details).  You must be subscribed to the list, otherwise your mail won't be sent to the
       subscribers.

								    11 Jul 2008 						   sane-gphoto2(5)
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