Sorry about that. I was typing from my phone, blindly. This is a cool website, thanks. Here is the correct solution: cal -y | sed -E '1,2d;s/(.{20}) /\1\n/g;'

Sorry about that. I was typing from my phone, blindly. This is a cool website, thanks. Here is the correct solution: cal -y | sed -E '1,2d;s/(.{20}) /\1\n/g;' | python3 -c "from calendar import month_name;import sys;[print(ln.strip()) for ln in sys.stdin.readlines() if ln.strip() in month_name and len(ln.strip())]" https://tio.run/##TY1BDsIgFAWv8tJNIbGtrUvWnsIag4VaEvohwKZRz440MdHtZN68u4xLzpO0aDa8ELVCc0bdHwYlYsfa53B8c3RjP1L3EHVR/JYWRyc0E6o5uBVlrEnJALN6FxJWR2m5kVy1@JK4RXHxwVBiltqYgvGMc8wuwBIM7ULBylAbtFTWkI6Mw8z46bv2K0OSQrn9712rnD8 https://tio.run/##TY1BDsIgFAWv8tJNIbGtrUvWnsIag4VaEvohwKZRz4...