How to output all lines following Nth occurrence of string
Greetings experts. Searched the forums (perhaps not hard enough?) - Am searching for a method to capture all output from a log file following the nth occurrence of a known string.
Background:
Using bash, I want to monitor my Oracle DB alert log file. The script will count the total # of occurrences the string "ORA-" appears in alert_SID.log.
Each time the script runs, it will get the current count of occurrences of the string "ORA-" and compare that count to that stored in the "curcnt.txt" text file. If the "newest" count is greater than the "current" count, then I would like to capture the alert log from the Nth occurrence (in this case, the value of "current") on and receive the contents of that file.
My thought process is that there should be a relatively straightforward way to parse my alert_SID.log up until the Nth occurrence and grab all output following.
Any constructive feedback and/or tips to get me pointed in the right direction is much appreciated.
Hi,
I have several files with data that have to be imported to a database. These files contain records with separator characters. Some records are corrupt (2 separators are missing) and I need to correct them prior to importing them into the db.
Example:
... (5 Replies)
Hello UNIX experts,
I have 124 text files in a directory. I want to extract the 45678th line of all the files sequentialy by file names. The extracted lines should be printed in the output file on seperate lines.
e.g. The input Files are one.txt, two.txt, three.txt, four.txt
The cat of four... (1 Reply)
Hello Folks..
I need your help ..
here the example of my problem..i know its easy..i don't all the commands in unix to do this especiallly sed...here my string..
dwc2_dfg_ajja_dfhhj_vw_dec2_dfgh_dwq
desired output is..
dwc2_dfg_ajja_dfhhj
it's a simple task with tail... (5 Replies)
Hi
I have requirement to find nth occurrence in a file and capture data from with in lines (between lines)
Data in File.
<QUOTE>
<SESSION>
<ATTRIBUTE NAME='Parameter Filename' VALUE='file1.parm'/>
<ATTRIBUTE NAME='Service Name' VALUE='None'/>
</SESSION>
<SESSION>
<ATTRIBUTE... (6 Replies)
There is already one thread with the same heading. But here the case is little different.
i have a line which have a field separator '|'
abc|def|ghi|jkl|mno|pqr|stu|vwx|yz
I want to replace every 3rd occurance + next character with the same + newline character.. I mean i want to enter a... (6 Replies)
Hi all,
Here is my problem for which i am breaking my head for past three days..
I have parted command output as follows..
Model: ATA WDC WD5000AAKS-0 (scsi)
Disk /dev/sdb: 500GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type ... (3 Replies)
Hi,
I am getting crazy after days on looking at it:
Bash in Ubuntu 12.04.1
I want to do this:
pattern="system /path1/file1 file1"
new_pattern=" data /path2/file2 file2"
file to edit: data.db
- I need to search in the file data.db for the nth occurrence of pattern
- pattern must... (14 Replies)
Please can someone help with this?
I have a file with lines as follows:
word1 word2 word3 word4 word5 word6 word7 word8
word1 word2 word3 word4 word5 word6 word7 word8
word1 word2 word3 word4 word5 word6 word7 word8
word1 word2 word3 word4 word5 word6 word7 word8
When I use the... (7 Replies)
Hi,
I would like to know how, using sed, be able to insert contents of file2 in file1 after say the second occurrence of a given string? e.g.
> cat file1
banana
apple
orange
apple
banana
pear
tangerine
apple
> cat file2
I don't like apples
What would be the sed command to insert... (5 Replies)
Hello,
Below command trims right after the nth occurrence of a string.
When I try in while loop, it is not working.
In Terminal
IFS=/ ; read -ra val < Textfile ; echo "${val:0:3}"
It gives only one line:
sunday/monday/tuesday
Textfile:
sunday/monday/tuesday/wednesday/thursday... (2 Replies)
Discussion started by: baris35
2 Replies
LEARN ABOUT OSX
svk::command::log
SVK::Command::Log(3) User Contributed Perl Documentation SVK::Command::Log(3)NAME
SVK::Command::Log - Show log messages for revisions
SYNOPSIS
log DEPOTPATH
log PATH
log -r N[:M] [DEPOT]PATH
OPTIONS -r [--revision] ARG : ARG (some commands also take ARG1:ARG2 range)
A revision argument can be one of:
"HEAD" latest in repository
{DATE} revision at start of the date
NUMBER revision number
NUMBER@ interpret as remote revision number
NUM1:NUM2 revision range
Unlike other commands, negative NUMBER has no
meaning.
-l [--limit] REV : stop after displaying REV revisions
-q [--quiet] : Don't display the actual log message itself
-x [--cross] : track revisions copied from elsewhere
-v [--verbose] : print extra information
--xml : display the log messages in XML format
--filter FILTER : select revisions based on FILTER
--output FILTER : display logs using the given FILTER
DESCRIPTION
Display the log messages and other meta-data associated with revisions.
SVK provides a flexible system allowing log messages and other revision properties to be displayed and processed in many ways. This
flexibility comes through the use of "log filters." Log filters are of two types: selection and output. Selection filters determine which
revisions are included in the output, while output filters determine how the information about those revisions is displayed. Here's a
simple example. These two invocations produce equivalent output:
svk log -l 5 //local/project
svk log --filter "head 5" --output std //local/project
The "head" filter chooses only the first revisions that it encounters, in this case, the first 5 revisions. The "std" filter displays the
revisions using SVK's default output format.
Selection filters can be connected together into pipelines. For example, to see the first 3 revisions with log messages containing the
string 'needle', we might do this
svk log --filter "grep needle | head 3" //local/project
That example introduced the "grep" filter. The argument for the grep filter is a valid Perl pattern (with any '|' characters as '|' and
'' as '\'). A revision is allowed to continue to the next stage of the pipeline if the revision's log message matches the pattern. If
we wanted to search only the first 10 revisions for 'needle' we could use either of the following commands
svk log --filter "head 10 | grep needle" //local/project
svk log -l 10 --filter "grep needle" //local/project
You may change SVK's default output filter by setting the SVKLOGOUTPUT environment. See svk help environment for details.
Standard Filters
The following log filters are included with the standard SVK distribution:
Selection : grep, head, author
Output : std, xml
For detailed documentation about any of these filters, try "perldoc SVK::Log::Filter::Name" where "Name" is "Grep", "Head", "XML", etc..
Other log filters are available from CPAN <http://search.cpan.org> by searching for "SVK::Log::Filter". For details on writing log
filters, see the documentation for the SVK::Log::Filter module.
perl v5.10.0 2008-08-04 SVK::Command::Log(3)