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Full Discussion: echo the NAME of the variable
Top Forums Shell Programming and Scripting echo the NAME of the variable Post 302630151 by neutronscott on Wednesday 25th of April 2012 12:46:32 PM
Old 04-25-2012
Use two arrays, or associative arrays (bash v4), or write them out again (you already did in the loop), or printf like so:

Code:
[mute@geek ~]$ varA=AAA1 varB=BBB2 varC=CCC3
[mute@geek ~]$ printf 'the current name is %s, the value is %s\n' varA "$varA" varB "$varB" varC "$varC"
the current name is varA, the value is AAA1
the current name is varB, the value is BBB2
the current name is varC, the value is CCC3

---------- Post updated at 12:46 PM ---------- Previous update was at 12:45 PM ----------

or bash's indirection:

Code:
$ for var in varA varB varC; do echo "$var is ${!var}"; done
varA is AAA1
varB is BBB2
varC is CCC3

 

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LEARN ABOUT NETBSD

mixerctl.conf

MIXERCTL.CONF(5)					      BSD File Formats Manual						  MIXERCTL.CONF(5)

NAME

     mixerctl.conf -- audio mixer configuration file

SYNOPSIS

     mixerctl.conf

DESCRIPTION

     The /etc/mixerctl.conf file consists of mixerctl(1) variables to set at boot time.  Each line of mixerctl.conf has the following format:
	   variable=value

     To generate a mixerctl.conf from the current mixer settings, execute:
	   mixerctl -a > /etc/mixerctl.conf

     Set mixerctl to YES in rc.conf(5) to have the variables set at boot time.	Additionally, you can have the settings saved and restored for the
     devices of your choice by listing them in mixerctl_mixers in rc.conf(5).

FILES

     /etc/mixerctl.conf

EXAMPLES

     Example mixer settings for an esa(4) audio adapter:

     outputs.master=255,255
     outputs.master.mute=off
     outputs.mono=255
     outputs.mono.mute=on
     outputs.mono.source=mixerout
     outputs.headphones=255,255
     outputs.headphones.mute=off
     outputs.tone=255,255
     inputs.speaker=255
     inputs.speaker.mute=off
     inputs.phone=191
     inputs.phone.mute=on
     inputs.mic=191
     inputs.mic.mute=on
     inputs.mic.preamp=off
     inputs.mic.source=mic0
     inputs.line=191,191
     inputs.line.mute=on
     inputs.cd=191,191
     inputs.cd.mute=on
     inputs.video=255,255
     inputs.video.mute=off
     inputs.aux=255,255
     inputs.aux.mute=off
     inputs.dac=191,191
     inputs.dac.mute=off
     record.source=mic
     record.volume=255,255
     record.volume.mute=off
     record.mic=0
     record.mic.mute=off
     outputs.loudness=off
     outputs.spatial=off
     outputs.spatial.center=0
     outputs.spatial.depth=0

SEE ALSO

     mixerctl(1), rc.conf(5)

HISTORY

     The mixerctl.conf configuration file first appeared in NetBSD 2.0.

BSD
								   April 5, 2003							       BSD
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