Sponsored Content
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

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Display from a variable using echo.

I have a variable that is outputting a lot of space. here has been 45 lines returned ... how can I remove the spaces between the "been and the 45" CODE: fil_len=`wc -l < coshb.txt` if ; then cat coshb.txt | more echo " " echo "There has been ${fil_len} lines... (4 Replies)
Discussion started by: jagannatha
4 Replies

2. Shell Programming and Scripting

echo variable problem

hi I have say five variable. I would ask the user which one they want me to print and then print accordingly. TEST_1='10.2.3.4' TEST_2='11.2.3.5' TEST_3='12.2.3.5' TEST_4='13.2.3.5' TEST_5='14.2.3.5' print_var() { echo "Accessing var num $1" echo TEST$1 #??? But How do... (6 Replies)
Discussion started by: sabina
6 Replies

3. Shell Programming and Scripting

assigning variable value using echo

I am modifying an existing script and it has the following line: export SomeEnvVar=`echo ${SomeLocalVar}` Why wouldn't it just read: export SomeEnvVar=${SomeLocalVar} Is there some reason to use echo instead of a direct assignment? :confused: (2 Replies)
Discussion started by: shellburger
2 Replies

4. Shell Programming and Scripting

calling a variable to echo to a log

Hi everyone, I am trying to create a simple batch file to make SQL backups. this part of it works fine. Currently the script can mysql dump the databases, compress them, delete the .sql, compress the individual tar.gz into one larger one, delete the smaller files, encrypt the final tar.gz and... (1 Reply)
Discussion started by: luma
1 Replies

5. Shell Programming and Scripting

echo multiple variable with calculation

$total=500 echo "scale=2; $val1*100/$total" | bc echo "scale=2; $val2*100*100/$total" | bc echo "scale=2; $val3*100/$total" | bc I want to make the above code to be accomplish in a single echo line. For instance output:21.3, 44.2, 51.6 How to achieve that, some one please help, i just... (5 Replies)
Discussion started by: alvin0618
5 Replies

6. Shell Programming and Scripting

read variable after echo

Hi, i want to create an user-friendly script where you are asked for two numbers. i would like that these two number to be separated with "--" for example, but i can't figure out how to do this. for example read -p "Insert lowest and highest value: " min ; echo -n "-- "; read max so... (3 Replies)
Discussion started by: ezitoc
3 Replies

7. UNIX for Dummies Questions & Answers

How to assign echo in variable

I've testing the following code: echo test.txt | cut -d . -f1and get the output "text" So why can't i assign the command to a variable? VAR='"echo test.txt | cut -d . -f1"' echo $VAR (5 Replies)
Discussion started by: jl487
5 Replies

8. Shell Programming and Scripting

Problem with variable ECHO $((SED...

Hi, I'm new here so I want to say hello to everyone first! I searched google and this forum for a similar problem, but wasn't successful #! /bin/bash I'm trying to output (echo) n lines of a text file to the screen (later into another file). But I have problem with the sed command, it won't... (1 Reply)
Discussion started by: studiologe
1 Replies

9. Shell Programming and Scripting

Echo awk output from its variable

Stumped with the formatting of the awk output when used with variables, e.g.: awk -F, 'BEGIN {OFS=","} print {$2,$3,$4}' $infile1 produces the desired output (with rows), but when echoing the variable below, the output is one continuous line var1=$(awk -F, 'BEGIN {OFS=","} print... (4 Replies)
Discussion started by: ux4me
4 Replies

10. Shell Programming and Scripting

How to echo a value of a var stored in another variable?

I'm writing a shell script in AIX and using ksh. I have a scenario where I have a variable A which stores $B. so when i echo "$A" it prints $B But I wish to print value stored in var b ie. \a\dir\res\ I wish to store \a\dir\res\ in a third variable C. later I want to cd into that path :... (1 Reply)
Discussion started by: simpltyansh
1 Replies
UPDATE-RCCONF-GUIDE(8)						 Debian GNU/Linux					    UPDATE-RCCONF-GUIDE(8)

NAME
update-rcconf-guide - Create default guide file for rcconf SYNOPSIS
update-rcconf-guide DESCRIPTION
Update-rcconf-guide creates the default guide file which rcconf uses. Update-rcconf-guide searches the package names corresponding to each service file in /etc/init.d directory from dpkg info files(/var/lib/dpkg/info/*.list) and get the description of these packages using apt-cache. Update-rcconf-guide uses Short-Description in priority to the description if service files has Short-Description field. Update-rcconf-guide writes those results to /var/lib/rcconf/guide.default file. You can write your own guide in user guide file(/var/lib/rcconf/guide) by hand. Rcconf refers Guides in /var/lib/rcconf/guide before those in /var/lib/rcconf/guide.default. If you install some packages after executed update-rcconf-guide, you need to re-create this file using update-rcconf-guide so as to refresh guide.default that includes new guides for installed new services. Notice: update-rcconf-guide was not executed when you installed rcconf package. FILE
/var/lib/rcconf/guide.default Guide File update-rcconf-guide generates. /var/lib/rcconf/guide Guide File user(Administrator) can define. SEE ALSO
rcconf(8) AUTHOR
Atsushi KAMOSHIDA <kamop@debian.org> perl v5.10.1 2009-01-21 UPDATE-RCCONF-GUIDE(8)
All times are GMT -4. The time now is 04:24 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy