Question

如何将以下各项的第一个字母从大写字母转换为lowere case？

例如，sentMessage将成为NotAttemptedCreditLimitReached而notAttemptedCreditLimitReached将成为SentMessage DeliverySucceeded DeliveryFailed DeliveryTimedOut NotAttemptedCreditLimitReached NotAttemptedChargingFailure SubscriptionFailed SentReportSMDeliveryStatus FailedToSendReportSMDeliveryStatus ReportSMSucceeded ReportSMFailed ......等等

下面的单词列表。它们只是一个文本文件。

$ cat testw
SentMessage
DeliverySucceeded
DeliveryFailed
DeliveryTimedOut
NotAttemptedCreditLimitReached
NotAttemptedChargingFailure
SubscriptionFailed
SentReportSMDeliveryStatus
FailedToSendReportSMDeliveryStatus
ReportSMSucceeded
ReportSMFailed
$ sed -i 's/[A-Z]/\L&/' testw
$ cat testw
sentMessage
deliverySucceeded
deliveryFailed
deliveryTimedOut
notAttemptedCreditLimitReached
notAttemptedChargingFailure
subscriptionFailed
sentReportSMDeliveryStatus
failedToSendReportSMDeliveryStatus
reportSMSucceeded
reportSMFailed

最初看着做notepadd ++，但对其他建议开放bash / python ......等

EDIT1 - 解决方案

hostname

Answer 1

如果您有gnu sed，请使用：

sed -i 's/[A-Z]/\L&/' file

[A-Z]将匹配首个大写字母
&是模式匹配字符串的反向引用（在本例中为单个大写字母）
\L将后引用转换为小写

如何将列表中每个单词的首字母从大写转换为小写？

EDIT1 - 解决方案

1 个答案: