Convert to upper or lower case in shell

convert string to upper or lower case in shell script

convert string to upper case
echo aBcD | tr '[:lower:]' '[:upper:]'

convert string to lower case
echo aBcD | tr '[:upper:]' '[:lower:]'

Configure Putty.exe to save serial console output to a file

  Impact of procedure :  Performing the following procedure should not have a negative impact on your system. Open putty by double click...

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