shell编程(课件第7章)
============shell 参数传递======================P2
$ cat args
echo $# arguments passed
echo arg 1=:$1,arg 2=:$2,arg 3=:$3
$ ./args a b c
3 arguments passed
arg 1=:a,arg 2=:b,arg 3=:c
$ ./args x*
1 arguments passed
arg 1=:x*,arg 2=:,arg 3=:
$
p3
$ cat arg2
echo $# arguments passed
echo they are:$*:
$ ./arg2 a b c
3 arguments passed
they are:a b c:
$
p4
$ cat m1.c
main(){
printf("Begin/n");
}
$ vi m2.c
$ cat m2.c
#include <stdio.h>
main(){
prinf("ok!/n");
}
$ vi biao
$ cat biao
cat $1 $2 |wc -l
$ chmod +x biao
$ ./biao m1.c m2.c
7
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