Set rxvt bg/fg colors using variables [SOLVED]

[Argolance]

Bonjour,
How to: all is in the title...
This works:

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rxvt +sb -b 20 -g 40x2 -fg \#000000 -bg \#ffffff -title "$(gettext 'TEST')"

This doesn't (it is the one I started from because I tried many things, using " and/or/both ', here and there "\'''" ' "\\$ *: @#°^}ch... ).

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# FG=#000000
# BG=#ffffff
# rxvt +sb -b 20 -g 40x2 -fg \$FG -bg \$BG -title "$(gettext 'TEST')"
rxvt: unable to parse color '$FG', using pink instead.
rxvt: unable to parse color '$BG', using pink instead.
rxvt: unable to parse color '$BG', using pink instead.
# 

Probably simple but...
Thank you!

Cordialement.

[MochiMoppel]

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FG='#000000' 
BG='#ffffff' 
rxvt +sb -b 20 -g 40x2 -fg $FG -bg $BG -title "$(gettext 'TEST')"

[Argolance]

Hello,
Thank you for answering.
Things are more complicated in my case because I get colors from cat commands:

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# FOREGROUND=`cat /root/.jwm/jwm_colors | grep 'FOREGROUND'| cut -d'=' -f2`
# ACTIVE_BG=`cat /root/.jwm/jwm_colors | grep 'ACTIVE_BG'| cut -d'=' -f2`
# echo $FOREGROUND
'#000000'
# echo $ACTIVE_BG
'#B0ADA7'

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# rxvt +sb -b 20 -g 40x2 -fg $FOREGROUND -bg $ACTVE_BG -title "$(gettext 'TEST')"
rxvt: "TEST": malformed option.
rxvt-unicode (urxvt) v9.05 - released: 2008-06-15
options: xft,styles,combining,blink,encodings=eu+vn,transparent,tint,XIM,frills,selectionscrolling,wheel,slipwheel,smart-resize,cursorBlink,pointerBlank,scrollbars=plain+rxvt
Usage: rxvt [-help] [--help]
 [-display string] [-tn string] [-geometry geometry] [-C] [-iconic]
 [-cd string] [-/+rv] [-/+ls] [-/+j] [-/+ss] [-/+ptab] [-/+sb] [-/+sr] [-/+st]
 [-sbt number] [-/+si] [-/+sk] [-/+sw] [-/+ip] [-/+tr] [-tint color]
 [-sh number] [-/+ut] [-/+vb] [-/+tcw] [-/+insecure] [-/+uc] [-/+bc] [-/+pb]
 [-bg color] [-fg color] [-hc color] [-cr color] [-pr color] [-pr2 color]
 [-bd color] [-fn fontname] [-fb fontname] [-fi fontname] [-fbi fontname]
 [-/+is] [-im name] [-pt style] [-imlocale string] [-imfont fontname]
 [-name string] [-title string] [-n string] [-sl number] [-embed windowid]
 [-depth number] [-/+override-redirect] [-pty-fd fileno] [-/+hold] [-w number]
 [-b number] [-/+bl] [-lsp number] [-/+sbg] [-mod modifier] [-/+ssc] [-/+ssr]
 [-e command arg ...]

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# rxvt +sb -b 20 -g 40x2 -fg \$FOREGROUND -bg \$ACTVE_BG -title "$(gettext 'TEST')" 
rxvt: unable to parse color '$FOREGROUND', using pink instead.
rxvt: unable to parse color '$ACTVE_BG', using pink instead.
rxvt: unable to parse color '$ACTVE_BG', using pink instead.

... and so on!

Cordialement.

[SFR]

Don't worry, it happens to the best of us.

Greetings!

[Argolance]

Thanks a lot SFR!
... But this doesn't solve the problem!

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# FOREGROUND=`cat /root/.jwm/jwm_colors | grep 'FOREGROUND'| cut -d'=' -f2`
# ACTIVE_BG=`cat /root/.jwm/jwm_colors | grep 'ACTIVE_BG'| cut -d'=' -f2` 
# rxvt +sb -bd $FOREGROUND -b 2 -g 40x4+100+100 -fg $FOREGROUND -bg $ACTIVE_BG -title "Xlock: $(gettext 'TEST')"
rxvt: unable to parse color ''#000000'', using pink instead.
rxvt: unable to parse color ''#B0ADA7'', using pink instead.
rxvt: unable to parse color ''#000000'', using pink instead.

Cordialement.

[SFR]

Thanks a lot SFR!
... But this doesn't solve the problem!

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# FOREGROUND=`cat /root/.jwm/jwm_colors | grep 'FOREGROUND'| cut -d'=' -f2`
# ACTIVE_BG=`cat /root/.jwm/jwm_colors | grep 'ACTIVE_BG'| cut -d'=' -f2` 
# rxvt +sb -bd $FOREGROUND -b 2 -g 40x4+100+100 -fg $FOREGROUND -bg $ACTIVE_BG -title "Xlock: $(gettext 'TEST')"
rxvt: unable to parse color ''#000000'', using pink instead.
rxvt: unable to parse color ''#B0ADA7'', using pink instead.
rxvt: unable to parse color ''#000000'', using pink instead.

Cordialement.

Well, the variables contain, e.g. 'black' (note the single quotes) instead of just black.
Try this instead:

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# FOREGROUND=`grep 'FOREGROUND' /root/.jwm/jwm_colors | cut -d "'" -f2`
# ACTIVE_BG=`grep 'ACTIVE_BG' /root/.jwm/jwm_colors | cut -d "'" -f2`

Greetings!

[Argolance]

Thank you!
This works fine.

Cordialement

[amigo]

echo (or eval) will get rid of quotes, so this should work:

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rxvt +sb -b 20 -g 40x2 -fg $(echo $FOREGROUND) -bg $(echo $ACTIVE_BG) -title "$(gettext 'TEST')" 

[Argolance]

Thanks!

Cordialement.