converting to lower case or upper case


 
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# 1  
Old 12-01-2011
converting to lower case or upper case

here is a code

Code:
column_name="vivek"
column_name2="ViVeK"
column_name=$(echo  $column_name | awk '{print tolower($0)}')
column_name2=$(echo  $column_name2 | awk '{print tolower($0)}')

                       echo "column name 1 lower: $column_name"
                        echo "column name 2 lower: $coulmn_name2"
 
if [[ "$column_name" = "$column_name2" ]]
then
        echo "matching"
fi

but the output is showing as matching even though the output of column_name2 is null... i think the syntax for converting to lower case or upper case is not working.. i even tried typeset -u column_name but this syntax is not working... plz help me out.... SmilieSmilie
# 2  
Old 12-01-2011
why don't use sed or tr?

Code:
column_name="vivek"
column_name2="ViVeK"
column_name=$(echo  $column_name | tr '[:upper:]' '[:lower:]')
column_name2=$(echo  $column_name2 | tr '[:upper:]' '[:lower:]')

                       echo "column name 1 lower: $column_name"
                        echo "column name 2 lower: $coulmn_name2"
  
# I think maybe you should use double equal sign
if [[ "$column_name" == "$column_name2" ]]
then
        echo "matching"
fi

This User Gave Thanks to 14th For This Post:
# 3  
Old 12-01-2011
i dont have much knowledge on sed or tr.. :-(... thanks for replying but still same issue is persisitng.. the output which i got is
Code:
column name 1 lower: vivek
column name 2 lower:
matching

the column_name2 is not printed again....this is the same output which i got previously
# 4  
Old 12-01-2011
Quote:
Originally Posted by vivek d r
i dont have much knowledge on sed or tr.. :-(... thanks for replying but still same issue is persisitng.. the output which i got is
Code:
column name 1 lower: vivek
column name 2 lower:
matching

the column_name2 is not printed again....this is the same output which i got previously
I think, that's because of the typo.

Code:
echo "column name 2 lower: $coulmn_name2

it should be.

Code:
 echo "column name 2 lower: $column_name2

This User Gave Thanks to 14th For This Post:
# 5  
Old 12-01-2011
Quote:
Originally Posted by 14th
I think, that's because of the typo.

Code:
echo "column name 2 lower: $coulmn_name2

it should be.

Code:
 echo "column name 2 lower: $column_name2


what is the difference between last two lines...? both are same right..

---------- Post updated at 11:28 AM ---------- Previous update was at 11:26 AM ----------

hey got the output.. thanks :-) but what was the typo...? is it the italised characters.. coz when i copy pasted the last line it worked :-) thanks a lot

---------- Post updated at 11:35 AM ---------- Previous update was at 11:28 AM ----------

.. :-( :-( i had used the above code in a lengthy code of mine there its not working again.... but when i used the same code independently in a script its working.... do you have any alternative like tr or sed?
# 6  
Old 12-01-2011
Hi vivek,

check the 2 bold words correctly, they two are not same and the second statement worked not because of italised...
# 7  
Old 12-01-2011
oh okay thanks :-)
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