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Write a shell script to convert all the lower case letters of a (text) file to upper case.

February 17, 2017March 27, 2017 ignougroup
*************************
if test $# -ne2
then
echo Invalid number of parameters
else

cat $1 tr'[a-z]’ 
‘[A-Z]’
**************************
Shell Script, Uncategorized, unix, upper casem linux

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With the help of an example for each, write the usage and syntax for the following LINUX commands.
basic purpose and name the OSI layer where the following devices will be operating:

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