实现仅首字母大写
使用 sed
echo -n "design & ENGINEERING" | sed 's/\b\([[:alpha:]]\)\([[:alpha:]]*\)\b/\u\1\L\2/g'
使用 Python
echo -n "design & ENGINEERING" | python3 -c "import sys; print(sys.stdin.read().title())"
or
echo -n "design & ENGINEERING" | python3 -c "import sys;print(sys.stdin.read().capitalize())"

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