想判断a变量是否包含b变量

Tim-Wang

a="1 2 3 4 "
b=3

想判断a变量是否包含b变量

yy_galois

echo $a | grep $b

ywlscpl

[ `echo "$a" |grep "$b" >/dev/null 2>&1;echo $?` -eq 0 ] && echo "matched"

infernor

原帖由 yy_galois 于 2009-5-5 19:51 发表
echo $a | grep $b

再加个wc -l

ubuntuer

1. ( echo $a | grep -q $b ) && echo matched || echo not matched
   

复制代码

xuxingyu

expr index "$a" "$b"