从字符分隔文件中读取并赋值给变量 | ksh Unix shell

Question

我正在使用 ksh。

我需要从文件中读取数据到变量中，然后进一步使用它们来发送电子邮件。

文件可以由任何不常用的字符（如 | ^ 等）或字符组分隔。
需要从文件中检索邮件、抄送、密件抄送、主题、正文。
我正在从 table 假脱机到文件中，因此定界符可以是任何字符，但在通用英语中较少使用，因为像 , & * 等字符可能出现在 Body 中并且可能 return 错误的值。

文件：（cc 和 bcc 在文件即它们是空白的)

na734@company.com|NA734@company.COM|||TEST EMAIL FOR LMS ERROR|Hi <<FIRST_NAME>>, <br><br>

Following errors are generated during migration of LMS data into FIMS application.<br><br><br>
The respective details of Error(s) occured is logged into the attached file.
Regards,<br>
FIMS Web Application<br><br><br>

This is an auto-generated e-mail, please don't reply to this e-mail
Reply to the following person for further details:
na734@company.com

代码使用：

while IFS='|' read -r a1 a2 a3 a4 a5 a6
do 
flag1=`echo $a1`
flag2=`echo $a2`
flag3=`echo $a3`
flag4=`echo $a4`
flag5=`echo $a5`
flag6=`echo $a6`
done < $RUNTIME/EMAIL_$System`date +%y%m%d`.csv

没有设置变量。

并且在使用以下代码时：它显示了不需要的输出：

while IFS='|' read -r a1 a2 a3 a4 a5 a6
do 
echo $a1
echo $a2
echo $a3
echo $a4
echo $a5
echo $a6
done < $RUNTIME/EMAIL_$System`date +%y%m%d`.csv

输出：（一堆空行）

na734@company.com
NA734@company.COM


TEST EMAIL FOR LMS ERROR
Hi <<FIRST_NAME>>, <br><br>






Following errors are generated during migration of LMS data into FIMS application.<br><br><br>





The respective details of Error(s) occured is logged into the attached file.





Regards,<br>





FIMS Web Application<br><br><br>











This is an auto-generated e-mail, please don't reply to this e-mail





Reply to the following person for further details:





na734@company.com

Answer 1

在 ksh 中，管道中的最后一个命令在当前 shell 中执行。

我会处理第一行，然后将所有其他行附加到 body 变量。

file="$RUNTIME/EMAIL_$System$(date +%y%m%d).csv"
sed 1q "$file" | IFS="|" read -r from to cc bcc subj body
body="$body
$(sed 1d "$file")"

printf "%s: %s\n" from "$from" to "$to" cc "$cc" bcc "$bcc" subj "$subj" body "$body"

from: na734@company.com
to: NA734@company.COM
cc:
bcc:
subj: TEST EMAIL FOR LMS ERROR
body: Hi <<FIRST_NAME>>, <br><br>

Following errors are generated during migration of LMS data into FIMS application.<br><br><br>
The respective details of Error(s) occured is logged into the attached file.
Regards,<br>
FIMS Web Application<br><br><br>

This is an auto-generated e-mail, please don't reply to this e-mail
Reply to the following person for further details:
na734@company.com

我有时喜欢用sed代替head/tail

Answer 2

我使用了 cut 命令，将它们分配给变量似乎效果很好。虽然，我不确定您的文件中是否会有多个条目。

Testing.sh

#!/usr/bin/ksh

a1=$(cat test.txt | cut -f1 -d '|' -s)
a2=$(cat test.txt | cut -f2 -d '|' -s)
a3=$(cat test.txt | cut -f3 -d '|' -s)
a4=$(cat test.txt | cut -f4 -d '|' -s)
a5=$(cat test.txt | cut -f5 -d '|' -s)
a6=$(cat test.txt | cut -f6 -d '|')

echo $a1
echo $a2
echo $a3
echo $a4
echo $a5
echo $a6

test.txt

na734@company.com|NA734@company.COM|||TEST EMAIL FOR LMS ERROR|Hi <<FIRST_NAME>>, <br><br>

Following errors are generated during migration of LMS data into FIMS application.<br><br><br>
The respective details of Error(s) occured is logged into the attached file.
Regards,<br>
FIMS Web Application<br><br><br>

This is an auto-generated e-mail, please don't reply to this e-mail
Reply to the following person for further details:
na734@company.com

输出：

$Testing.sh
na734@company.com
NA734@company.COM


TEST EMAIL FOR LMS ERROR
Hi <<FIRST_NAME>>, <br><br> Following errors are generated during migration of LMS data into FIMS application.<br><br><br> The respective details of Error(s) occured is logged into the attached file. Regards,<br> FIMS Web Application<br><br><br> This is an auto-generated e-mail, please don't reply to this e-mail Reply to the following person for further details: na734@company.com

从字符分隔文件中读取并赋值给变量 | ksh Unix shell

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