Comments on: Using variables in Unix shell scripts

By: kavita

kavita — Tue, 29 Mar 2011 06:33:33 +0000

I want to name html file as tp5_7.html where s=5 and e=7. I tried using tp$s_$e.html. but it gives me only tp7.html. can you please help me here?

By: suman

suman — Sat, 05 Sep 2009 09:16:10 +0000

Hi, i want to know the storage capacity of a shell variable i.e how many bytes they ocupy in memory?

By: Chandra

Chandra — Tue, 21 Jul 2009 09:27:14 +0000

i think
if [[ "$Dir" = "New" ]]; then
echo "Correct"
fi

is much better, thanks chandra

By: Chandra Sekhar

Chandra Sekhar — Thu, 25 Jun 2009 02:47:36 +0000

I was able to find the solution myself….
I changed the code as follows and it works!!

if [[ "$Dir" = "New" ]]; then
echo "Correct"
fi

By: Chandra Sekhar

Chandra Sekhar — Wed, 24 Jun 2009 07:21:43 +0000

FYI: This is how the code is written
if [ "$Dir" = "New" ]
then
echo "Correct"
fi

when Dir's value is ! then it throws the following error:
new_test.sh[26]: [: New: unknown operator

By: Chandra Sekhar

Chandra Sekhar — Wed, 24 Jun 2009 07:13:25 +0000

Hi. Could someone explain me how to use ! as a variable in unix if command? (It always complains me that unknown operator when I compare two variables and one variable's value is !)

Thanks in advance.

By: Unix scripts: how to sum numbers up — UNIX Tutorial: Learn UNIX

Unix scripts: how to sum numbers up — UNIX Tutorial: Learn UNIX — Tue, 16 Jun 2009 08:39:45 +0000

[...] Variables in Unix shells [...]

By: sree

sree — Tue, 09 Jun 2009 12:11:19 +0000

Thanks for the article Gleb.
Could you please tell me the difference between the two statements

var1=$var2
var1={$var2}

By: Gleb Reys

Gleb Reys — Thu, 26 Feb 2009 14:44:04 +0000

You're welcome, Adolfo!

By: adolfo.trinca

adolfo.trinca — Tue, 24 Feb 2009 10:51:24 +0000

thank you