How to change Case of a string(BASH Scripting)?

pinga123 · 07-09-2010, 12:10 AM

Is there any inbuilt functionality in Unix shell script so that i can able to convert lower case string input to an upper case?

I dont want to use high level languages like java,python or perl for doing the job.

pixellany · 07-09-2010, 12:25 AM

Code:

tr a-z A-Z filename

Telengard · 07-09-2010, 12:26 AM

Quote:

Originally Posted by pinga123

Is there any inbuilt functionality in Unix shell script so that i can able to convert lower case string input to an upper case?

I dont want to use high level languages like java,python or perl for doing the job.

Try this:

Code:

$ echo 'my string' | tr 'a-z' 'A-Z'
MY STRING

loftus49 · 07-09-2010, 12:29 AM

I believe you can try "cat <name of file> | tr 'a-z' 'A-Z'" (without the < > or " ") to go from lower case to uppercase. Consequently "cat <name of file> | tr 'A-Z' 'a-z'" would take you from upper case to lower case.

cat myfile | tr 'a-z' 'A-Z'

wizman56 · 07-09-2010, 12:31 AM

Ok, simply put you could do this:

export lower=somevalue
export lower=`echo $lower | tr 'a-z' 'A-Z'`