如何在awk脚本中将0加到少于两位数

Question

输入：在x.sh

中的函数trimline中输入以下文字

May 13 00:01:58 BBAOMACBOOKAIR2 com.apple.xpc.launchd[1] (com.apple.mdworker.bundles[12513]): Service exited with abnormal code: 78
May 13 00:02:12 BBAOMACBOOKAIR2 com.apple.xpc.launchd[1] (com.apple.xpc.launchd.domain.pid.mdmclient.12523): Failed to bootstrap path: path = /usr/libexec/mdmclient, error = 108: Invalid path
May 13 00:04:20 BBAOMACBOOKAIR2 syslogd[113]: ASL Sender Statistics
May 13 00:05:58 BBAOMACBOOKAIR2 com.apple.xpc.launchd[1] (com.apple.mdworker.bundles[12535]): Could not find uid associated with service: 0: Undefined error: 0 501

我在x.sh文件中使用如下语句调用error.awk文件实现我想要的输出

文件：x.sh

trimline| awk -f error.awk

文件：error.awk

{
    gsub(/^ */, "", [=12=])
    gsub(/ *$/, "", [=12=])
    FS = ":"
    if ( == "") {
        next
    }
}
{
    FS = " "
    deviceName = 
    processId = 
    gsub(/^.*\[/, "", processId)
    gsub(/\].*$/, "", processId)
    processName = 
     =  =  =  =  = ""
    gsub(/^ */, "", [=12=])
    description = [=12=]
    trimtime = 
    FS = ":"
    time = 
   #timeplus=$(echo "$time+1"|bc)
    timeplus=let $time + 1
    timeadd='{ printf "%02d" timeplus }'
    timeWindow=$time"00_"$timeadd"00"

    printf "deviceName:" deviceName
    printf "processId:" processId
    printf "processName:" processName
    printf "description:" description
    printf "timeWindow:" timeWindow
}

但是下一句报语法错误，这句话的目的是将文本中的时间重新排列成时间段再输出，比如00:01:58转换为0000-0100，原理就是取小时的值

timeadd='{ printf "%02d" timeplus }'

问题是这个语句怎么修正，作用是当只有一位时，左边加0

处理流程是取出冒号隔开的第一项的值加1，0加1。

       step 1 00:01:58
       step 2 00
       step 3 00+1
       step 4 01

我要timeWindow输出的是时间间隔：

Answer 1

这就是您想要做的（基于 my answer to your previous question）吗？

$ cat tst.sh
#!/usr/bin/env bash

# Using "cat file" in place of "trimline" which I dont have.
cat file |
awk '
    { split([=10=],errChk,/:/) }

    errChk[5] != "" {
        split(,t,/:/)
        timeRange = sprintf("%02d00-%02d00",t[1],t[1]+1)
        deviceName = 
        processId = processName = 
        gsub(/.*\[|].*/,"",processId)
        description = [=10=]
        sub(/[^(]*/,"",description)

        print timeRange
        print deviceName
        print processId
        print processName
        print description
    }
'

$ ./tst.sh
0000-0100
BBAOMACBOOKAIR2
1
com.apple.xpc.launchd[1]
(com.apple.mdworker.bundles[12513]): Could not find uid associated with service: 0: Undefined error: 0 501
0000-0100
BBAOMACBOOKAIR2
1
com.apple.xpc.launchd[1]
(com.apple.mdworker.bundles[12513]): Service exited with abnormal code: 78
0000-0100
BBAOMACBOOKAIR2
1
com.apple.xpc.launchd[1]
(com.apple.xpc.launchd.domain.pid.mdmclient.12523): Failed to bootstrap path: path = /usr/libexec/mdmclient, error = 108: Invalid path

如何在awk脚本中将0加到少于两位数

How to add 0 to less than two digits in awk script

shell

awk