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Full Discussion: [awk] printing value of a variable assignment from a file
Top Forums Shell Programming and Scripting [awk] printing value of a variable assignment from a file Post 302943996 by sea on Thursday 14th of May 2015 04:17:00 PM
Old 05-14-2015
[awk] printing value of a variable assignment from a file
Heyas

Me try to print only the value of a (specific) variable assignment from a file.

What i get (1):
Code:
:) tui $ bin/tui-conf-get ~/.tui_rc TUI_THEME

dot-blue
""
"$TUI_DIR_INSTALL_ROOT/usr"
"$TUI_DIR_INSTALL_ROOT/etc/tui"
"$TUI_PREFIX/share/doc/tui"
"$TUI_PREFIX/share/tui"
"/home/sea/.config/tui"
"$TUI_DIR_USER/logs"
"$TUI_DIR_SYSTEM/themes"
"/home/sea/.cache"
"/home/sea/.local/bin"
"/home/sea/.local/man/man1"
"/home/sea/.cache/tui.tmp~"
"$TUI_DIR_USER/loadlist.conf"
"$TUI_DIR_USER/apps.conf"
"$TUI_DIR_USER/user.conf"
"$TUI_DIR_USER/settings.conf"
"$TUI_DIR_CONF/tui.conf"

What i want: (2)
Code:
✔ tui $ bin/tui-conf-get ~/.tui_rc TUI_THEME

dot-blue

Code i got:
Code:
CONFILE="$1"
VARNAME="$2"
awk	'  
		/^#/  ||
		/^\[/  ||
		/!VAR/ { next }
		{
			if (VAR = $1) {
				if ("-z" != $2) {
					print $2
				}
			}
	}' VAR="$VARNAME" FS="=" "$CONFFILE"


The RC file looks like:
Code:
#/home/sea/.tui_rc
# This file is not ment to be changed manualy!
# Any change of this file may result in an unusable TUI.
# Do changes at your own risk!
#
#	Theme
#	Options are: 	default, default-red, dot-blue, dot-red, \
#			floating, mono, witch-purple, witch-yellow
#	See /usr/share/tui/themes
#
 	TUI_THEME=dot-blue
#
#	Paths
#
[ -z "$TUI_DIR_INSTALL_ROOT" ] &&  \
 	TUI_DIR_INSTALL_ROOT=""
[ -z "$TUI_PREFIX" ] && \
 	TUI_PREFIX="$TUI_DIR_INSTALL_ROOT/usr"
[ -z "$TUI_DIR_CONF" ] && readonly \
 	...
#
#	Files
#
[ -z "$TUI_FILE_TEMP" ] && readonly \
 	TUI_FILE_TEMP="/home/sea/.cache/tui.tmp~"
[ -z "$TUI_FILE_CONF_LOADLIST" ] && readonly \
 	TUI_FILE_CONF_LOADLIST="$TUI_DIR_USER/loadlist.conf"
...

What am i missing?
Tia
 

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LEARN ABOUT PHP

times

times(1)                                                           User Commands                                                          times(1)

NAME

       times - shell built-in function to report time usages of the current shell

SYNOPSIS

   sh
       times

   ksh
       times

DESCRIPTION

   sh
       Print the accumulated user and system times for processes run from the shell.

   ksh
       Print the accumulated user and system times for the shell and for processes run from the shell.

       On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:

       1.  Variable assignment lists preceding the command remain in effect when the command completes.

       2.  I/O redirections are processed after variable assignments.

       3.  Errors cause a script that contains them to abort.

       4.  Words,  following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
           able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation  are  not
           performed.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       ksh(1), sh(1), time(1), attributes(5)

SunOS 5.10                                                          15 Apr 1994                                                           times(1)
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