Here is an alternate solution. The nonstandard cgrep allows one to specify the edges of a window around a regular expression. The window edges may themselves be specified as regular expressions. So we can tell cgrep to look for the line matching the last line of interest, and then go backwards to find the preceding line of interest.
Then the sub-block needs to be deleted except for the first and last lines -- again a set of bounds or edges.
In the middle of this script is the call to cgrep, piped into a short perl script to do the sub-block work:
which, when run, produces:
As it turns out, extracting and deleting blocks is a common task, so one might create a script to do that based on parameters.
Changing the operative lines to do that in a script s3:
produces:
Best wishes ... cheers, drl
The source for cgrep can be found at: http://sourceforge.net/projects/cgrep/
I need to extract a particular block from a file whose locations are not known but the only identity is a word. For example
in a file I have
ABC
asdklf
asdfk
FGH
dfdfg
asdlfk
asdfl
...
JHK (5 Replies)
Hi , this is my first enty in our forum.
Problem scenario:
Using informatica tool am loding records from source DB to target DB. While loading some records getting rejected due to some reason. Informatica will capture those rejected records in session log file.now the session log ll be... (2 Replies)
Hi,
There's an xml file produced from a front-end tool as shown below:
<INPUT DATABASE ="ORACLE" DBNAME ="UNIX" NAME ="FACT_TABLE" OWNERNAME ="DIPS">
<INPUTFIELD DATATYPE ="double" DEFAULTVALUE ="" DESCRIPTION ="" NAME ="STORE_KEY" PICTURETEXT ="" PORTTYPE ="INPUT" PRECISION ="15" SCALE... (6 Replies)
Hello all,
I have a large output file from which I would like to extract a single block of text.
An example block of text is shown below:
***** EQUILIBRIUM GEOMETRY LOCATED *****
COORDINATES OF ALL ATOMS ARE (ANGS)
ATOM CHARGE X Y Z
... (10 Replies)
Hi,
I have some CVS log files, which are divided into blocks. Each block has many fields of information and I want to extract those blocks with a pattern. Here is the sample input.
RCS file: /cvsroot/eclipse/org.eclipse.debug.core/core/org/eclipse/debug/core/DebugPlugin.java,v
head: 1.174... (7 Replies)
I have a "main" file which has blocks of data for each user defined by tags BEGIN and END.
BEGIN
ID_NUM:24879
USER:abc123
HOW:47M
CMD1:xyz1
CMD2:arp2
STATE:active
PROCESS:id60
END
BEGIN
ID_NUM:24880
USER:def123
HOW:4M
CMD1:xyz1
CMD2:xyz2
STATE:running
PROCESS:id64
END (7 Replies)
I want to process a file block by block using sed, and if that block does not contain two patterns, then that complete block has to be printed.
See below for the example data.
................................server 1...............................
running process 1
running... (8 Replies)
Hello all,
I am working on a script which should parse a large file called input.txt which contains table definitions, index definitions and comments like these ones:
------------------------------------------------
-- DDL Statements for table "CMWSYS"."CMWD_TEC_SUIVI_TRT"... (12 Replies)
Hi everyone,
So i'm struggling with an xml (log file) where we get information about some devices, so the logfile is filled with multiple "blocks" like that.
Based on the <devId> i want to extract this part of the xml file. If possible I want it to have an script for this, cause we'll use... (5 Replies)