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区分下shell和makefile中的特殊字符

 
  • Feb 04, 2015

主要是在Makefile中看到了这种字符($@)，不理解含义，查阅了一下，跟shell中意义不一样：

$@ -is the name of the target currently being processed. 
$<     -is the name of the first dependency.

顺便提下shell下的

$# Stores the number of command-line arguments that were passed to the shell program. 
$?    Stores the exit value of the last command that was executed.
$0    Stores the first word of the entered command (the name of the shell program).
$*    Stores all the arguments that were entered on thecommand line ($1 $2 ...).
"$@"  Stores all the arguments that were entered on the command line, individually quoted ("$1" "$2" ...).
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