代码: 全选
#!/bin/bash
# generate a index
index=0
last |\
while read TMPLINE;do
echo -n $index
echo -n ","
index=$(($index+1)) # index明明在增加的!
done
echo
echo -n "index="
echo $index # 为什么这里的index还是等于0?
※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,
20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,3
6,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,
53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69
,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,8
6,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,1
02,103,104,105,106,107,108,109,110,111,112,113,114
,115,116,117,118,119,120,121,122,123,124,125,126,1
27,128,129,130,131,132,133,134,135,136,137,138,139
,140,141,142,143,144,145,146,147,148,149,150,151,1
52,153,154,155,156,157,158,159,160,161,162,163,164
,165,166,167,168,169,170,171,172,173,174,175,176,1
77,178,179,180,181,182,183,184,185,186,187,188,189
,190,191,192,193,194,195,196,197,198,199,200,201,
index=0
我在想是不是管道的问题哦?
代码: 全选
#!/bin/bash
i=0
while [ $i -lt 10 ];do
i=$(($i+1))
echo -n $i
echo -n ","
done
echo
echo "i is: $i"
1,2,3,4,5,6,7,8,9,10,
i is: 10