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Full Discussion: How to check if a file is open in editor?
Top Forums UNIX for Beginners Questions & Answers How to check if a file is open in editor? Post 303005407 by cherryTango on Tuesday 17th of October 2017 06:40:26 PM
Old 10-17-2017
So I've got a program that allows the user to edit a file either in gedit or using vim. I want a log to update only once the user has finished editing the file. Figured easiest way to do this would be only to update once the user had closed the editor. Been playing around with it for a while now - think I have found the best solution for what I want to do however I can't seem to get it to work.

My code:
Code:
gedit "$1" & PID="$!"
            # Do stuff while file is open
            wait $PID
            clear
            updateLog

(For the vim option the code is identical except 'vim' replaces 'gedit')

My logic is that this will guarantee that the process is terminated before updating the log.. however in practice it just immediately updates the log. Have absolutely no idea what I'm doing wrong! The $PID variable is being filled correctly as I've tested by printing it. Does the PID for a process change and this is why it's not working? Or is my wait command incorrect? When I put an
Code:
exit

command after the wait there are no errors in the terminal.
 

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LEARN ABOUT CENTOS

gedit

GEDIT(1)						      General Commands Manual							  GEDIT(1)

NAME

       gedit - text editor for the GNOME Desktop

SYNOPSIS

       gedit [OPTION...] [FILE...] [+LINE[:COLUMN]]
       gedit [OPTION...] -

DESCRIPTION

       gedit is the official text editor of the GNOME desktop environment.

       While  aiming  at simplicity and ease of use, gedit is a powerful general purpose text editor.  It can be used to create and edit all kinds
       of text files.

       gedit features a flexible plugin system which can be used to dynamically add new advanced features to gedit itself.

OPTIONS

       --encoding
	      Set the character encoding to be used for opening the files listed on the command line.

       -g, --geometry=GEOMETRY
	      Set the X geometry window size (WIDTHxHEIGHT+X+Y).

       --list-encodings
	      Display list of possible values for the encoding option and exit.

       --new-window
	      Create a new toplevel window in an existing instance of gedit.

       --new-document
	      Create a new document in an existing instance of gedit.

       -s, --standalone
	      Run gedit in standalone mode.

       -w, --wait
	      Open files and block the gedit process.

       --help Prints the command line options.

       --version
	      Output version information and exit.

       FILE   Specifies the file to open when gedit starts. If this is not specified, gedit will load a blank  file  with  an  "Unsaved  Document"
	      label. Multiple files can be loaded if they are separated by spaces.  gedit also supports handling of remote files. For example, you
	      can pass	the  location  of  a  webpage  to  gedit  ,  like  "http://www.gnome.org",  or	load  a  file  from  a	FTP  server,  like
	      "ftp://ftp.gnome.org/robots.txt".

       -      gedit will read from stdin

       +LINE  For  the first file, go to the line specified by LINE (do not insert a space between the "+" sign and the number).  If LINE is miss-
	      ing, go to the last line.

       COLUMN For the first file, go to the column specified by COLUMN.  If COLUMN is missing, go to the first column.

BUGS

       If you find a bug, please report it at http://bugzilla.gnome.org/enter_bug.cgi?product=gedit.

AUTHORS

       Paolo Maggi (paolo@gnome.org)

       Paolo Borelli (pborelli@katamail.com)

       Steve Frecinaux (code@istique.net)

       Jesse van den Kieboom (jessevdk@gnome.org)

       Ignacio Casal Quinteiro <icq@gnome.org>

       James Willcox (jwillcox@gnome.org)

       Federico Mena Quintero (federico@novell.com)

       Chema Celorio

								    17 May 2010 							  GEDIT(1)
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