12-02-2011
No double posting thread closed
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1. Solaris
Can anyone help me find and replace blank rows in a file with a numeric value (ie blankrow=someTxtOrNumValue), the file is over 500,000 rows long so it would need to be the quickest way as I'll need to do this for multiple files...I would be greatfull for any suggestions....thanks
sample file:... (2 Replies)
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What is the command to count lines in a files, but ignore blank lines and commented lines?
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Hi i am trying to replace blank lines with a number 0. I tried the following code
awk '{print NF ? $0: blankrow}' blankrow = "0" file1.prg>file2.prg
however i get the following error: fatal: cannot open file `blankrow' for reading (No such file or directory)
file example:
1
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Hi,
Consider a file named "testfile"
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Hi,
I have one file, say file 1, that has data like below where 19900107 is the date,
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Hi.. I'm facing a trouble in replacing two blank lines in a file using shell script...
I used sed to search a line and insert two blank lines after the searchd line using the following sed command.
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So the tag for this forum says all newbies welcome...
All I want to do is go through my file and find lines which contain a given string of characters then replace these with a blank line. I really tried to find a simple command to do this but failed.
Here's what I did come up with though:
... (2 Replies)
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Hi Gurus,
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Hi All
Need Help
I have a file with the below format (ABC.TXT) :
®¿¿ABCDHEJJSJJ|XCBJSKK01|M|7348974982790
HDFLJDKJSKJ|KJALKSD02|M|7378439274898
KJHSAJKHHJJ|LJDSAJKK03|F|9898982039999
(cont......)
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LEARN ABOUT CENTOS
flipdiff
FLIPDIFF(1) Man pages FLIPDIFF(1)
NAME
flipdiff - exchange the order of two incremental patches
SYNOPSIS
flipdiff [[-p n] | [--strip-match=n]] [[-U n] | [--unified=n]] [[-d PAT] | [--drop-context=PAT]] [[-q] | [--quiet]] [[-z] | [--decompress]]
[[-b] | [--ignore-space-change]] [[-B] | [--ignore-blank-lines]] [[-i] | [--ignore-case]] [[-w] | [--ignore-all-space]]
[--in-place] diff1 diff2
flipdiff {[--help] | [--version]}
DESCRIPTION
flipdiff exchanges the order of two patch files that apply one after the other. The patches must be "clean": the context lines must match
and there should be no mis-matched offsets.
The swapped patches are sent to standard output, with a marker line ("=== 8< === cut here === 8< ===") between them, unless the --in-place
option is passed. In that case, the output is written back to the original input files.
OPTIONS
-p n, --strip-match=n
When comparing filenames, ignore the first n pathname components from both patches. (This is similar to the -p option to GNU patch(1).)
-q, --quiet
Quieter output. Don't emit rationale lines at the beginning of each patch.
-U n, --unified=n
Attempt to display n lines of context (requires at least n lines of context in both input files). (This is similar to the -U option to
GNU diff(1).)
-d pattern, --drop-context=PATTERN
Don't display any context on files that match the shell wildcard pattern. This option can be given multiple times.
Note that the interpretation of the shell wildcard pattern does not count slash characters or periods as special (in other words, no
flags are given to fnmatch). This is so that "*/basename"-type patterns can be given without limiting the number of pathname
components.
-i, --ignore-case
Consider upper- and lower-case to be the same.
-w, --ignore-all-space
Ignore whitespace changes in patches.
-b, --ignore-space-change
Ignore changes in the amount of whitespace.
-B, --ignore-blank-lines
Ignore changes whose lines are all blank.
-z, --decompress
Decompress files with extensions .gz and .bz2.
--in-place
Write output to the original input files.
--help
Display a short usage message.
--version
Display the version number of flipdiff.
LIMITATIONS
This is only been very lightly tested, and may not even work. Using --in-place is not recommended at the moment.
There are some cases in which it is not possible to meaningfully flip patches without understanding the semantics of the content. This
program only uses complete lines that appear at some stage during the application of the two patches, and never composes a line from parts.
Because of this, it is generally a good idea to read through the output to check that it makes sense.
AUTHOR
Tim Waugh <twaugh@redhat.com>
Package maintainer
patchutils 23 January 2009 FLIPDIFF(1)