Changing a string to lower cases in korn shell script

[Lorenzo Meneguzzi]

Hello,
I want to change the value stored in a string variable to all lower case.
For instance :
VAR1=AbcD then I want this variable becomes :
VAR1=abcd
How can I do that ?
Thanks in advance for your help.
Laurent MENEGUZY

[Stefan Farrelly]

echo test|tr "[:lower:]" "[:upper:]"

[Pete Randall]

echo $VAR1 |tr "[:upper:]" "[:lower:]"


Pete

[Bill McNAMARA_1]

tr -s '[:upper:]' '[:lower:]'

[Stefan Farrelly · Accepted solution]

VAR1=$(echo $VAR1|tr "[:upper:]" "[:lower:]")

[Paula J Frazer-Campbell]

Hi

Varable | tr -s "[A-Z]" "[a-z]"

Paula

[Francisco J. Soler]

The ideas are all good but, but a more complete solution to your problem could be:

VAR1=`echo $VAR1 | tr -s "[A-Z]" "[a-z]"`

Be careful wit the quotation.

Frank

[Bill Hassell]

It's much more efficient to let the shell do the work rather than a separate process:


typeset -l VAR2

VAR1=AbcD
VAR2="$VAR1"
echo $VAR1 $VAR2
AbcD abcd

When assigning strings, it's always a good idea to use double quotes so any imbedded spaces, etc, are preserved. The typeset attribute has more than a dozen formatting options such as UPPERCASE, lowewrcase, left/right justified, zero-fill, etc. typeset is available in POSIX shells such as the HP-UX POSIX shell and ksh as well as BASH.

[Lorenzo Meneguzzi]

Thanks for your help. It's working fine.
Laurent MENEGUZY