Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: using sed but want to drop last line
Top Forums Shell Programming and Scripting using sed but want to drop last line Post 302279265 by atc98092 on Thursday 22nd of January 2009 09:00:21 AM
Old 01-22-2009
Quote:
Originally Posted by rwuerth

Is there nothing in the actual last line (with the 'FWD:' in it) that you can key in on to make that the last line of your sed command?

Otherwise I think but have not tested, that you could pipe the output from what I've done above through 'uniq -d'
Yeah, I was thinking of the FWD, but looking at complete log files I see that not every entry is forwarded to someone else. Unfortunately, the only constant between entries is that the next entry starts with the 4 digit time and position (which for this facility is always TMU). The only other constant is the keyword that starts the entry, such as WX: or METERING:. Even to colon isn't constant after the keyword.

I've asked the development team that works on the program to add keyword search to the reports we can generate from the command line, but even if they do it, it'll take over a year to get it in place. The government moves extremely slow when tinkering with stuff they consider "operational" to the National Airspace System, even when it doesn't have any effect on controlling aircraft! Smilie

Thanks again for the suggestions. I'll keep tinkering, but scripting isn't my strong point. I can program in Visual Basic, but that won't work on Linux Smilie
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Sed or Grep to delete line containing patter plus extra line

I'm new to using sed and grep commands, but have found them extremely useful. However I am having a hard time figuring this one out: Delete every line containing the word CEN and the next line as well. ie. test.txt blue 324 CEN green red blue 324 CEN green red blue to produce:... (2 Replies)
Discussion started by: rocketman88
2 Replies

2. Shell Programming and Scripting

print option - drop 1 line

Hi, Is there a print option to drop the data 1 line? Basically the page is too close to the top of the page and I would like to drop it one line automatically, editing the actual data is complicated. (8 Replies)
Discussion started by: mcclunyboy
8 Replies

3. Shell Programming and Scripting

Sed Comparing Parenthesized Values In Previous Line To Current Line

I am trying to delete lines in archived Apache httpd logs Each line has the pattern: <ip-address> - - <date-time> <document-request-URL> <http-response> <size-of-req'd-doc> <referring-document-URL> This pattern is shown in the example of 6 lines from the log in the code box below. These 6... (1 Reply)
Discussion started by: Proteomist
1 Replies

4. Shell Programming and Scripting

I need to know how to replace a line after a pattern match with an empty line using SED

Hi How Are you? I am doing fine! I need to go now? I will see you tomorrow! Basically I need to replace the entire line containing "doing" with a blank line: I need to the following output: Hi How Are you? I need to go now? I will see you tomorrow! Thanks in advance.... (1 Reply)
Discussion started by: sags007_99
1 Replies

5. Shell Programming and Scripting

sed command to replace a line at a specific line number with some other line

my requirement is, consider a file output cat output blah sdjfhjkd jsdfhjksdh sdfs 23423 sdfsdf sdf"sdfsdf"sdfsdf"""""dsf hellow there this doesnt look good et cetc etc etcetera i want to replace a line of line number 4 ("this doesnt look good") with some other line ... (3 Replies)
Discussion started by: vivek d r
3 Replies

6. Shell Programming and Scripting

sed command to grep multiple pattern present in single line and delete that line

here is what i want to achieve.. i have a file with below contents cat fileName blah blah blah . .DROP this REJECT that . --sport 7800 -j REJECT --reject-with icmp-port-unreachable --dport 7800 -j REJECT --reject-with icmp-port-unreachable . . . more blah blah blah --dport 3306... (14 Replies)
Discussion started by: vivek d r
14 Replies

7. Shell Programming and Scripting

sed and awk giving error ./sample.sh: line 13: sed: command not found

Hi, I am running a script sample.sh in bash environment .In the script i am using sed and awk commands which when executed individually from terminal they are getting executed normally but when i give these sed and awk commands in the script it is giving the below errors :- ./sample.sh: line... (12 Replies)
Discussion started by: satishmallidi
12 Replies

8. Shell Programming and Scripting

Multiple line search, replace second line, using awk or sed

All, I appreciate any help you can offer here as this is well beyond my grasp of awk/sed... I have an input file similar to: &LOG &LOG Part: "@DB/TC10000021855/--F" &LOG &LOG &LOG Part: "@DB/TC10000021852/--F" &LOG Cloning_Action: RETAIN &LOG Part: "@DB/TCCP000010713/--A" &LOG &LOG... (5 Replies)
Discussion started by: KarmaPoliceT2
5 Replies

9. Shell Programming and Scripting

sed command to replace a line in a file using line number from the output of a pipe.

Sed command to replace a line in a file using line number from the output of a pipe. Is it possible to replace a whole line piped from someother command into a file at paritcular line... here is some basic execution flow.. the line number is 412 lineNo=412 Now i have a line... (1 Reply)
Discussion started by: vivek d r
1 Replies

10. Shell Programming and Scripting

Replace values in script reading line by line using sed

Hi all, Let's say I have a script calling for the two variables PA_VALUE and PB_VALUE. for pa in PA_VALUE blah blah do for pb in PB_VALUE blah blah do I have a text file with two columns of values for PA and PB. 14.5 16.7 7.8 9.5 5.6 3.6 etc etc I would like to read this... (7 Replies)
Discussion started by: crimsonengineer
7 Replies

LEARN ABOUT DEBIAN

gethead

gethead(1)						      General Commands Manual							gethead(1)

Name
       gethead - Print FITS or IRAF header keyword values

Synopsis
       gethead [-hptv] [-d pathname] [-n num] <FITS or IRAF file> kw1 kw2 ... kwn

Description
       Print  values of the specified keywords from the given image header.  By default they are all listed on one line, separated by spaces.  The
       -v flag causes the keyword names and values to be printed, one keyword per line.  To read keywords from a list of files, substitute @<list-
       file>  for  the file names on the command line.	To read a lot of keywords, put them, one per line, in a file and substitute @<keylistfile>
       on the command line.  If two @ commands are present, the program will figure out which contains file names and which contains keywords.

Options
       -a     List file name even if keywords are not found

       -d     Root directory for input files (default is cwd)

       -e     Output keyword=value's on one line per file

       -f     Never print filenames (default is to print them if more than one)

       -g     Output keyword=value's on one line per keyword

       -h     flag causes the keyword names to be printed at top of columns.

       -n     Number of decimal places in numeric output

       -o     OR conditions instead of ANDing them

       -p     Print full pathnames of files

       -t     flag causes the output to be in tab-separated tables with keyword column headings.

       -u     Always print ___ if keyword not found, event if only one keyword in search

       -v     Print output as <keyword>=<value>, one per line

Web Page
       http://tdc-www.harvard.edu/software/wcstools/gethead.html

Author
       Doug Mink, SAO (dmink@cfa.harvard.edu)

6 July 2001							     WCSTools								gethead(1)
All times are GMT -4. The time now is 04:29 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy