linux 合并多行文件

文件内容
cat  test .txt 
reportType
 
orderId
 
sid
hospitalName
customerName
customerSex
customerPhone
customerId
orderNum
doctorName
recordName
 
symptom
docSymptom
diagnosis
checkResult
medicine
surgery
prevTreatment
curMedHistory
prevMedHistory
bodyCheck

多行合并

tr  -s  "\n"  " "  <  test .txt ; echo
reportType orderId sid hospitalName customerName customerSex customerPhone customerId orderNum doctorName recordName symptom docSymptom diagnosis checkResult medicine surgery prevTreatment curMedHistory prevMedHistory bodyCheck medicalOrders check imgs docImages channelId brokerId brokerAvator reportSelf status createdAt updatedAt isDeleted version lock

方法一合并之后添加，

echo  ` tr  -s  "\n"  " "  <  test .txt; echo ` |  sed  "s/ /,/g"
reportType,orderId,sid,hospitalName,customerName,customerSex,customerPhone,customerId,orderNum,doctorName,recordName,symptom,docSymptom,diagnosis,checkResult,medicine,surgery,prevTreatment,curMedHistory,prevMedHistory,bodyCheck,medicalOrders,check,imgs,docImages,channelId,brokerId,brokerAvator,reportSelf,status,createdAt,updatedAt,isDeleted,version,lock

方法二

echo  ` sed  "/^$/d"  test .txt |  sed  "s@\(.*\)@\1,@g" `

先删除文件的空行，在添加，然后打印到一行