偶然在网上看到sina有一个查询股票信息的api，随即在linux下用shell写了个小脚本查询股票信息，方便工作之余关心一下股票行情，而且在linux终端里面查看，不容易被boss发现哦（我还故意把字体颜色调成了深蓝色，不仔细看，看不出来的哦，boss同事还以为你在认真工作写代码呢，嘿嘿）。小脚本分两个部分，checkstock.sh和stock_num.dat，把想要查询的股票代码（格式为：sh601699 或者 sz000001）添加到stock_num.dat中去，运行checkstock.sh即可查询。
顺便总结一下，写脚本时候碰到的一些问题和解决方法,以备日后查阅，也望各位大牛指点新招妙招：
1. 浮点数的比较：
两种方法：1. ds=`echo "1.23" "2.33" | awk '{if($1>=$2) {print 1;} else {print 0;}}'`
2. ds=`echo "$1 >= $2" | bc`
因为test只能比较整数，浮点数的比较借用了bc和awk，通过上述两句，ds的值为0或者1，再做判断。
2. 数组作为参数传给函数：
见函数prase_info()中的第一句， 如下：
eval $(echo $1 | awk '{split($0,array,","); for(i in array) print "hs_info_array["i"]="array[i]}')
通过这个语句，可以把参数$1(字符串数组)通过awk赋给shell数组hs_info_array 。
3. 传参数不改变字符数组的结构
见函数print_array(),传值的时候用 print_array "${STOCK_NUM[@]}",这里用@，结构不变，用*，则数组中的字符串则会被拆分，比如，STOCK_NUM[1]="aaa bbb" 如果传值时用*，则会被分成两个，一个是aaa，一个是bbb。而用@，则仍然是“aaa bbb”
配置文件stock_num.dat如下：
- sh601699
-
sh600600
-
sz000002
shell脚本checkstock.sh如下：
- #!/bin/bash
-
-
##################################################################################
-
# Read stock number data from ./stock_num_file.txt
-
#
-
#
-
#
-
###################################################################################
-
STOCK_NUM_FILE="./stock_num.dat"
-
ITEM_COLOR="\033[34m"
-
COLOR_RESET="\033[0m"
-
COLOR_RED="\033[31m"
-
COLOR_GREEN="\033[32m"
-
-
function ERRTRAP()
-
{
-
echo "[LINE:$1] Error: Comand or Function exited with status $?"
-
-
}
-
-
function print_array()
-
{
-
i=0
-
for elem in "$@"
-
do
-
echo $((i++)) $elem
-
done
-
}
-
-
function read_data_file()
-
{
-
i=0
-
if [ ! -e "./stock_num.dat" ]
-
then
-
echo "ERROR: The stock_num.dat isn't existed!"
-
exit 0
-
fi
-
-
while read line
-
do
-
STOCK_NUM[$i]=$line
-
let i+=1
-
done < $STOCK_NUM_FILE
-
for ((i=0; i < ${#STOCK_NUM[@]}; i++ ))
-
do
-
#echo "${STOCK_NUM[$i]}"
-
get_info ${STOCK_NUM[$i]}
-
done
-
}
-
-
############################################################################
-
#
-
# funciton: get_info(arg1)
-
#
-
# result: Get stock information from Internet
-
#
-
############################################################################
-
function get_info()
-
{
-
stock_info=`curl http://hq.sinajs.cn/list=$1 2>/dev/null | sed -n -e 's/var.*=\"//' -e 's/ //g' -e 's/\";$//p'`
-
# echo "$stock_info"
-
# s_name=`echo "$stock_info" | sed -n 's/,.*$//p'`
-
# echo $s_name
-
# stock_data=`echo "$stock_info" | sed -n 's/'$s_name',//p'`
-
# echo $stock_data
-
s_num=$1
-
if [ "$stock_info" != "" ];then
-
prase_info $stock_info
-
display_info
-
else
-
echo "Exception:Can't find any infomation about $s_num"
-
fi
-
}
-
-
function prase_info()
-
{
-
eval $(echo $1 | awk '{split($0,array,","); for(i in array) print "stock_info_array["i"]="array[i]}')
-
s_name=${stock_info_array[1]}
-
s_today_open=${stock_info_array[2]}
-
s_lastday_close=${stock_info_array[3]}
-
s_current_price=${stock_info_array[4]}
-
s_today_highest=${stock_info_array[5]}
-
s_today_lowest=${stock_info_array[6]}
-
s_dealed_stock_num=${stock_info_array[9]}
-
s_dealed_stock_cash_num=${stock_info_array[10]}
-
s_date=${stock_info_array[31]}
-
s_time=${stock_info_array[32]}
-
-
#####################################
-
#${stock_info_array[11-20] buy1-buy5
-
#${stock_info_array[21-30] sale1-sale5
-
######################################
-
-
-
}
-
-
############################################################################
-
#
-
# funciton: print_pre_zero(arg1)
-
#
-
# result: add prefix zero for rate
-
#
-
############################################################################
-
function print_pre_zero()
-
{
-
local cmp_value_1=`echo "$1 < 0 && $1 > -1" | bc`
-
local cmp_value_2=`echo "$1 >0 && $1 < 1" | bc`
-
if [ $cmp_value_1 -eq "1" ]
-
then
-
local tmp_val=`echo "scale=2;$1 / -1" | bc -l`
-
echo "-0$tmp_val"
-
elif [ $cmp_value_2 -eq "1" ]
-
then
-
echo "0$1"
-
else
-
echo "$1"
-
fi
-
-
}
-
-
############################################################################
-
#
-
# funciton: cmp_display(arg1,arg2)
-
#
-
# result: print arg1 with color(red or green)
-
#
-
############################################################################
-
function cmp_display()
-
{
-
#############################################################################
-
# Two methods to compare float:
-
# 1. ds=`echo "0" "0" | awk '{if($1>=$2) {print 1;} else {print 0;}}'`
-
# 2. ds=`echo "$1 >= $2" | bc`
-
# echo $ds
-
#############################################################################
-
local cmp_value=`echo "$1 >= $2" | bc -l`
-
if [ $cmp_value -eq "0" ]
-
then
-
echo -e "$COLOR_GREEN $1 $COLOR_RESET"
-
else
-
echo -e "$COLOR_RED $1 $COLOR_RESET"
-
fi
-
}
-
-
-
############################################################################
-
#
-
# funciton: cmp_display_rate(arg1,arg2)
-
#
-
# result: print arg1 with color(red or green) and add prefix zero.
-
#
-
############################################################################
-
function cmp_display_rate()
-
{
-
local tmp_rate=`echo "($1 - $2) / $2 * 100" | bc -l`
-
local cmp_rate=`echo "scale=2;$tmp_rate/1" | bc`
-
-
local cmp_value=`echo "$1 >= $2" | bc`
-
-
if [ $cmp_value -eq "0" ]
-
then
-
echo -e "$COLOR_GREEN $1 ($(print_pre_zero $(echo $1 - $2 | bc -l)) $(print_pre_zero $cmp_rate)%)$COLOR_RESET"
-
else
-
echo -e "$COLOR_RED $1 (+$(print_pre_zero $(echo $1 - $2 | bc -l)) $(print_pre_zero $cmp_rate)%)$COLOR_RESET"
-
fi
-
-
-
}
-
-
function display_info()
-
{
-
echo -e "$s_date"
-
echo -e "$s_time"
-
echo -e "$ITEM_COLOR STOCK: $s_name No. $s_num $COLOR_RESET"
-
echo -e "$ITEM_COLOR Last Day Closed Price:$COLOR_RESET $s_lastday_close"
-
echo -e "$ITEM_COLOR Today Open Price:$COLOR_RESET $(cmp_display $s_today_open $s_lastday_close)"
-
echo -e "$ITEM_COLOR Curren Price:$COLOR_RESET $(cmp_display_rate $s_current_price $s_lastday_close)"
-
echo -e "$ITEM_COLOR Highest Price:$COLOR_RESET $(cmp_display $s_today_highest $s_lastday_close)"
-
echo -e "$ITEM_COLOR Lowest Price:$COLOR_RESET $(cmp_display $s_today_lowest $s_lastday_close)"
-
echo -e "$ITEM_COLOR Dealed Stock Num(per 100):$COLOR_RESET $(expr $s_dealed_stock_num / 100)"
-
echo -e "$ITEM_COLOR Dealed Stock Cash Num:$COLOR_RESET $s_dealed_stock_cash_num"
-
}
-
-
function display_hs_index()
-
{
-
eval $(echo $1 | awk '{split($0,array,","); for(i in array) print "hs_info_array["i"]="array[i]}')
-
echo -e "$ITEM_COLOR Index:$COLOR_RESET ${hs_info_array[1]}$COLOR_RESET"
-
echo -e "$ITEM_COLOR Today Open:$COLOR_RESET $(cmp_display ${hs_info_array[2]} ${hs_info_array[3]})"
-
echo -e "$ITEM_COLOR Last CLosed:$COLOR_RESET ${hs_info_array[3]}"
-
echo -e "$ITEM_COLOR Curren :$COLOR_RESET $(cmp_display_rate ${hs_info_array[4]} ${hs_info_array[3]})"
-
echo -e "$ITEM_COLOR Highest:$COLOR_RESET $(cmp_display ${hs_info_array[5]} ${hs_info_array[3]})"
-
echo -e "$ITEM_COLOR Lowest:$COLOR_RESET $(cmp_display ${hs_info_array[6]} ${hs_info_array[3]})"
-
-
-
-
}
-
-
function view_hs_index()
-
{
-
sh_info=`curl http://hq.sinajs.cn/list=sh000001 2>/dev/null | sed -n -e 's/var.*=\"//' -e 's/\";$//p'`
-
if [ "$sh_info" != "" ];then
-
display_hs_index $sh_info
-
else
-
echo "Exception:Can't find any infomation about $s_num"
-
fi
-
sz_info=`curl http://hq.sinajs.cn/list=sz399001 2>/dev/null | sed -n -e 's/var.*=\"//' -e 's/\";$//p'`
-
if [ "$sz_info" != "" ];then
-
display_hs_index $sz_info
-
else
-
echo "Exception:Can't find any infomation about $s_num"
-
fi
-
-
}
-
-
view_hs_index
-
read_data_file
-
#trap "ERRTRAP $LINENO" ERR
附件：
check_stock.rar
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