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Full Discussion: Need Help in assinging a value to a Variable !!
Top Forums Shell Programming and Scripting Need Help in assinging a value to a Variable !! Post 302240077 by era on Thursday 25th of September 2008 02:43:21 AM
Old 09-25-2008
You have a number of errors in there. Perhaps simply posting a correct solution is a bit of a cheat, but you need to understand at least that redirection operates on file names, not strings (so < $unix1 doesn't do what you want) and you need to use $(...) or `...` to actually execute the tr command. var=value foo bar means "assign value to $var, then execute foo bar while this assignment is in place."

Code:
echo "$unix1" | tr A-Z a-z

or if you need the value to be in $unix2,

Code:
unix2=$(echo "$unix1" | tr A-Z a-z)

If your shell is very old, you will need to use backticks (grave accents, ASCII 96 -- not regular single quotes) instead of $(...).
Last edited by era; 09-25-2008 at 03:45 AM.. Reason: How to properly capture result in unix2
 

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LEARN ABOUT PLAN9

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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