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如何在 Bash 中从数组中获取值

tag-icon • tag-icon linux shell-script bash-scripting
如何在 Bash 中从数组中获取值

下面我检查退出状态，如果它不是零（即失败）我将通过 echo 语句显示它

while read -r record
 reccount=$((reccount + 1 ))
/usr/bin/java -jar NSGalinaMail.jar "$email_text"  "$email_subject" "$contact_email" "[email protected]" $lang  $cny_cd $MY_WORK/"Notify_$2.pdf"
        if [ $? -ne 0 ]; then
            emailCountFailure[$reccount-1]="Failure: Email to $contact_email for $ref_nr"
            echo "$emailCountFailure"
        fi
        echo "record_count=$reccount" >> $MY_WORK/"raw_data_$2"
        echo "emailCountFailure=$emailCountFailure" >> $MY_WORK/"raw_data_$2"
done < fileName ## a file with 10 records##

如果没有失败，我期望至少是 0 值，但它显示空白

emailCountFailure=

有没有什么解决办法？谢谢

答案1

至少你忘了while ... ; do。这是我的版本，可以实现你所期望的功能：

#!/bin/bash

# proposed
set -e
set -u
# disable in production code
#set -v
# disable in production code
set -x

reccount=0
declare -a emailCountFailure
while read -r record; do
    reccount=$((reccount + 1 ))

    # do not exit on non-zero status
    set +e
    # execute something
    perl -Mstrict -Mwarnings -E "say 1/$record" > /dev/null 2>&1
    # store exit code as `set` will exit, too
    _rc=$?
    # re-enable exit on non-zero status
    set -e

    idx=$[$reccount-1]
    if [ $_rc -eq 0 ]; then
        # I don't know if you need this
        emailCountFailure[$idx]=''
    else
        emailCountFailure[$idx]="Failure: division by $record"
        # do what you need
    fi
done < lines

echo "record_count=$reccount"
echo "emailCountFailure=$emailCountFailure"

该文件lines仅包含几行数字，并且被 0 阻塞。

希望有所帮助。

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