Originally Posted by nisagnel
I thought hello111 needs only the name of the month in upper case.that's why i used awk and head.
Ahh, ok. It seems we had different interpretations of:
Display the current month using 'cal', translating to uppercase using 'tr'.
You're thinking the name of the month while I'm thinking the calendar for the month. My interpretation was mainly based on the limited tool set (cal and tr) that the question mentioned.