shell腳本對字符串的拼接 如何在shell中執(zhí)行字符串拼接起來的命令c？
如何在shell中執(zhí)行字符串拼接起來的命令c？[根@localhost~]#a=123您在/var/spool/mail/root中有新郵件[根@localhost~]#b=456[根@localho
如何在shell中執(zhí)行字符串拼接起來的命令c？
[根@localhost~]#a=123您在/var/spool/mail/root中有新郵件[根@localhost~]#b=456[根@localhost~]#回聲$a$b123456[根@localhost~]#c=$a$b美元[根@localhost~]#回音$123456