Ví dụ Echo_(lệnh)

C:\>echo Xin chàoXin chào

Sử dụng mã escape ANSI chuỗi SGR, các terminal tương thích có thể in chữ có màu. Ví dụ, một triển khai kiểu UNIX System III:

BGRED=`echo "\033[41m"`FGBLUE=`echo "\033[35m"`BGGREEN=`echo "\033[42m"`NORMAL=`echo "\033[m"`

Hoặc trong Unix Version 8:

BGRED=`echo -e "\033[41m"`FGBLUE=`echo -e "\033[35m"`BGGREEN=`echo -e "\033[42m"`NORMAL=`echo -e "\033[m"`

sau đó

echo "${FGBLUE} Text in blue ${NORMAL}"echo "Text normal"echo "${BGRED} Background in red"echo "${BGGREEN} Background in Green and back to Normal ${NORMAL}"

Sử dụng printf thay vì echo:

BGRED=`printf '\33[41m'`NORMAL=`printf '\33[m'`printf '%s\n' "${BGRED}Text on red background${NORMAL}"

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Tài liệu tham khảo

WikiPedia: Echo_(lệnh) http://www.flexusergroup.com/flexusergroup/pdfs/sw... http://software.intel.com/en-us/articles/efi-shell... http://www.jatomes.com/Help/Os2Bat.php#ECHO http://www.teamnaconsulting.com/compresources/pdfs... http://www.in-ulm.de/~mascheck/various/echo+printf... http://www.cs.dartmouth.edu/~doug/reader.pdf http://zsh.sourceforge.net/Doc/Release/Shell-Built... http://archive.org/details/1988-rugheimer-spanik-a... http://www.bitsavers.org/pdf/digitalResearch/flexo... http://man.cat-v.org/inferno/1/echo