如何使用SED或AWK附加行，直到特定模式不匹配？

Question

I want to append the line which does not start with a given pattern . But i am unable to do that using sed . Plz help me to solve the problem using either sed or awk . For an Example:

INPUT:

18:55:42[pool-1-thread-2] INFO jfileupload.download.http.a - Download completed
18:55:42[HTTPDOWNLOAD] ERROR jfileupload.download.ui.DownloadTransferUI - 
java.io.IOException: Failed to show URI:file:/home/rahul/Desktop/
    at sun.awt.X11.XDesktopPeer.launch(XDesktopPeer.java:114)
    at sun.awt.X11.XDesktopPeer.open(XDesktopPeer.java:77)
    at java.awt.Desktop.open(Desktop.java:272)
    at jfileupload.download.ui.DownloadTransferUI.a(Unknown Source)
    at jfileupload.download.http.HTTPDownloadTransfer.a(Unknown Source)
    at jfileupload.download.a.a.run(Unknown Source)
    at java.lang.Thread.run(Thread.java:745)
18:55:43[MultiThreadedHttpConnectionManager cleanup] DEBUG org.apache.commons.httpclient.MultiThreadedHttpConnectionManager - ReferenceQueueThread interrupted
java.lang.InterruptedException
    at java.lang.Object.wait(Native Method)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151)
    at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$ReferenceQueueThread.run(MultiThreadedHttpConnectionManager.java:1122)

Required Output:

18:55:42[pool-1-thread-2] INFO jfileupload.download.http.a - Download completed
18:55:42[HTTPDOWNLOAD] ERROR jfileupload.download.ui.DownloadTransferUI -java.io.IOException: Failed to show URI:file:/home/rahul/Desktop/, at sun.awt.X11.XDesktopPeer.launch(XDesktopPeer.java:114),  at sun.awt.X11.XDesktopPeer.open(XDesktopPeer.java:77), at java.awt.Desktop.open,(Desktop.java:272),    at jfileupload.download.ui.DownloadTransferUI.a(Unknown Source),    at jfileupload.download.http.HTTPDownloadTransfer.a(Unknown Source),    at jfileupload.download.a.a.run(Unknown Source),    at java.lang.Thread.run(Thread.java:745)
18:55:43[MultiThreadedHttpConnectionManager cleanup] DEBUG org.apache.commons.httpclient.MultiThreadedHttpConnectionManager - ReferenceQueueThread interrupted,java.lang.InterruptedException,  at java.lang.Object.wait(Native Method),    at java.lang.ref.ReferenceQueue.remove,(ReferenceQueue.java:135),   at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151),    at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$ReferenceQueueThread.run(MultiThreadedHttpConnectionManager.java:1122)

In the above input i want to append the next line into current line with , until the new line start with such pattern 18:55:42 .

Thanks.

Answer 1

not tried it but this should work

awk '/[0-9]+:[0-9]+:[0-9]+/{x=$0}{a[x]=a[x]?a[x]", "$0:$0}END{for (i in a)print a[i]}' file

.

/[0-9]+:[0-9]+:[0-9]+/         If this pattern is matched

{x=$0}                         Set x to the value of the line

{a[x]=a[x]?a[x]", "$0:$0}      Create associative array with x($0) using ternary
                               operator to check there is a value in a[x] to
                               begin with. Adds the current lines value to the 
                               a[x]

END{for (i in a)print a[i]}   When all records are processed loop through array 
                              and output values