Question

我正在尝试将Debian Bash脚本转换为Linux Busybox sh脚本。我一直在尝试转换以下命令：

read

问题是echo "RESULTS: $MESSAGE" >> $LOGFILE sendmail -S smtp.server.com -f "$FROM" "$RECIPIENTS" <<EOF subject:$SUBJECT from:$FROM $MESSAGE EOF的-d选项不适用于Busybox。如何将变量（在这种情况下为$ MESSAGE）设置为包含多行包含其他变量值的多行字符串？

输出MESSAGE进入日志文件和sendmail发送的消息中：

type MyCustomObj<Key extends string | number, Value, Rest = {}> =
    Key extends string ? { [key: string]: Value } & Rest: { [key: number]: Value } & Rest;

Answer 1

最简单的答案是不使用读取。

MESSAGE=$(cat <<EOM
Return code: $retn_code
Start of backup: $DATESTART
End of backup: $DATEEND
$(df -h | grep '/share/USB')
EOM
)

MESSAGE=$( printf "%s\n%s\n%s\n%s\n" \
    "Return code: $retn_code" \
    "Start of backup: $DATESTART" \
    "End of backup: $DATEEND" \
    "$(df -h | grep '/share/USB')" \
)

Answer 2

在任何shell中都不需要特殊的命令；只是常规作业。

message="Return code: $retn_code
Start of backup: $DATESTART
End of backup: $DATEEND
$(df -h | grep '/share/USB')
"

使用busybox sh将多行输出捕获到Bash变量中

2 个答案: