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Full Discussion: Nesting backticks
Top Forums Shell Programming and Scripting Nesting backticks Post 302791009 by ahamed101 on Sunday 7th of April 2013 03:36:20 PM
Old 04-07-2013
Use $( )

Code:
val=$( echo $( echo $( echo "abc" ) ) )
echo $val
abc

--ahamed
 

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tk_chooseDirectory(n)					       Tk Built-In Commands					     tk_chooseDirectory(n)

__________________________________________________________________________________________________________________________________________________

NAME
tk_chooseDirectory - pops up a dialog box for the user to select a directory. SYNOPSIS
tk_chooseDirectory ?option value ...? _________________________________________________________________ DESCRIPTION
The procedure tk_chooseDirectory pops up a dialog box for the user to select a directory. The following option-value pairs are possible as command line arguments: -initialdir dirname Specifies that the directories in directory should be displayed when the dialog pops up. If this parameter is not specified, then the directories in the current working directory are displayed. If the parameter specifies a relative path, the return value will convert the relative path to an absolute path. -mustexist boolean Specifies whether the user may specify non-existent directories. If this parameter is true, then the user may only select directo- ries that already exist. The default value is false. -parent window Makes window the logical parent of the dialog. The dialog is displayed on top of its parent window. On Mac OS X, this turns the file dialog into a sheet attached to the parent window. -title titleString Specifies a string to display as the title of the dialog box. If this option is not specified, then a default title will be dis- played. EXAMPLE
set dir [tk_chooseDirectory -initialdir ~ -title "Choose a directory"] if {$dir eq ""} { label .l -text "No directory selected" } else { label .l -text "Selected $dir" } SEE ALSO
tk_getOpenFile(n), tk_getSaveFile(n) KEYWORDS
directory, selection, dialog, platform-specific Tk 8.3 tk_chooseDirectory(n)
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