Bash从文本文件计算打印输出
我尝试创建的脚本将有两个函数。然而,我面临着一些错误,如果有人能指导我,我将不胜感激 根据销售价格和数量使用字段计算利润。 打印出文本文件中的所有内容。 my BookDB文本文件中的数据格式如下所示。文本文件仅包含5个字段,第6个字段表示利润,应仅显示,而不保存到文本文件中。我的数据库中的分隔符是:Bash从文本文件计算打印输出,bash,awk,Bash,Awk,我尝试创建的脚本将有两个函数。然而,我面临着一些错误,如果有人能指导我,我将不胜感激 根据销售价格和数量使用字段计算利润。 打印出文本文件中的所有内容。 my BookDB文本文件中的数据格式如下所示。文本文件仅包含5个字段,第6个字段表示利润,应仅显示,而不保存到文本文件中。我的数据库中的分隔符是: Title:Author:Price:Quantity avilable:Quantity Sold a(Title):b(Author):$1.00(Quantity.avilable):52:
Title:Author:Price:Quantity avilable:Quantity Sold
a(Title):b(Author):$1.00(Quantity.avilable):52:248(Quantity Sold)
下面是所需的输出
Title:Author:Price:Quantity Available:Quantity Sold:Profit
A:B:1.00:20:10:$10
现在,我的输出是这样的
Advanced Book Inventory System
1.) Inventory summary report
2.) Quit
Enter selection: 1
6) inventory_summary_report
./filesearch.sh: line 17: (40.30
40.80
50.00
55.00
15.00
56.80
89.10
76.00
23.60
12.99
1.00)*(50
10
248): command not found
./filesearch.sh: line 18: BEGIN: command not found
Harry Potter - The Half Blood Prince,J.K Rowling,$40.30,10,50,Harry Potter - The Half
Blood Prince:J.K Rowling:40.30:10:50
The little Red Riding Hood,Dan Lin,$40.80,20,10,The little Red Riding Hood:
Dan Lin:40.80:20:10
下面是我的编码,如果有人能告诉我编码中的错误,我将不胜感激
#!/bin/bash
clear
function press_enter
{
echo ""
echo -n "Press Enter to continue"
read
clear
}
function inventory_summary_report
{
echo "1) inventory_summary_report"
echo ""
price="$(cat BookDB.txt | cut -d: -f3)"
sold="$(cat BookDB.txt | cut -d: -f5)"
sales=$(echo scale=3;"($price)*($sold)" |bc)
BEGIN { printf "%s,%s,$%s,%s,%s,%s\n" , "Title", "Author", "Price", "Qty Avail", "Qty Sold", "Total Sales" }
awk -F':' -v search="$1" '$1 ~ search || $2 ~ search { i++; printf "%s,%s,$%s,%s,%s,%s\n", $1, $2, $3, $4, $5,$sales} END { printf "%d records found\n", i }' BookDB.txt
}
#Display menu options and wait for selection
selection=0
until [ "$selection" = "1" ]; do
echo ""
echo ""
echo "Advanced Book Inventory System"
echo ""
echo ""
echo " 1.) Inventory summary report"
echo " 2.) Quit"
echo -n "Enter selection: "
read selection
echo ""
case $selection in
1 ) inventory_summary_report;press_enter;;
2 ) break ;;
* ) tput setf 4;echo "Please enter 1 or 2, ";tput setf 7; press_enter
esac
done`
这是一份礼物。到目前为止,这是我的建议
#!/bin/bash
clear
function press_enter {
echo ""
echo -n "Press Enter to continue. "
read
clear
}
function inventory_summary_report {
awk -F : -v search="$1" '
BEGIN {
OFS = "\t"
print "Title", "Author", "Price", "Qty Avail", "Qty Sold", "Total Sales"
count = 0
}
$1 ~ search {
printf "%s\t%s\t$%0.2f\t%s\t%s\t%0.2f\n", $1, $2, $3, $4, $5, ($3 * $5)
++count
}
END {
printf "%d records found\n", count
}
' BookDB.txt | column -t ## Better than relying on constant column sizes with printf.
}
# Display menu options and wait for selection
selection=0
for (( ;; )); do
echo ""
echo ""
echo "Advanced Book Inventory System"
echo ""
echo ""
echo " 1.) Inventory summary report"
echo " 2.) Quit"
echo ""
read -p "Enter selection: " selection
echo ""
case "$selection" in
1)
inventory_summary_report ## You're not passing any argument for the search. You probably still need to ask input here.
press_enter
break ## Optional.
;;
2)
break
;;
*)
tput setf 4
echo "Please enter 1 or 2, "
tput setf 7
press_enter
;;
esac
done
一般来说,awk在其语法中要求>用于文件输出。因此,这可能很容易:
awk -F':' -v search="$1" '$1 ~ search || $2 ~ search { i++; printf "%s,%s,$%s,%s,%s,%s\n", $1, $2, $3, $4, $5,$sales} END { printf "%d records found\n", i }' > BookDB.txt,
这是一个作业问题吗?@RishiDua我想它应该是:嘿,伙计!你的工作一团糟。开始块不合适。另外,去掉设置价格、销售额和销售额的bash行,并在awk中计算所有这些内容。编辑您的帖子以显示更改。