11-12-2008
ignoring blank line in a file
i have a file called Cleaner1.log . This files have some blank lines also.My requirement is that it should ignore the blank lines and give me the lines that contain some data.
I m using this logic in a script:
below the contents of file :
Maximum Time Taken for Processing(Failed) RR Message with DB Read : 0 ms
Minimum Time Taken for Processing(Failed) RR Message with DB Read : 0 ms
Maximum Time Taken for Processing(Successful) RR Message without DB Read : 1608 ms
Minimum Time Taken for Processing(Successful) RR Message without DB Read : 1 ms
Average Time Taken for Processing(Successful) RR Message without DB Read : 25 ms
Maximum Time Taken for Processing(Failed) RR Message without DB Read : 2897 ms
Minimum Time Taken for Processing(Failed) RR Message without DB Read : 2 ms
Average Time Taken for Processing(Failed) RR Message without DB Read : 11 ms
***** Completed Execution Summary *****
--------------------------------------------------------------------------
after the line "***** Completed Execution Summary *****" there is another line (i.e. last line ) which is totally blank,so when i gave the below command it shows the value as 1
cat Cleaner1.log | tail -1 | wc -l---------->1
i want whenever i do tail and if the last line is blank line it should give me the count as 0
plz help me in this ?
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g3cat(1) mgetty+sendfax manual g3cat(1)
NAME
g3cat - concatenate multiple g3 documents
SYNOPSIS
g3cat [-l] [-a] g3-file1 ...
DESCRIPTION
g3cat concatenates g3 files. These can either be 'raw', that is, bitmaps packed according to the CCITT T.4 standard for one-dimensional
bitmap encoding, or 'digifax' files, created by GNU's GhostScript package with the digifax drivers. Its output is a concatenation of all
the input files, in raw G3 format, with two white lines in between.
If a - is given as input file, stdin is used.
If the input data is malformed, a warning is printed to stderr, and the output file will have a blank line at this place.
OPTIONS
-l separate files with a one-pixel wide black line.
-h <blank lines>
specifies the number of blank lines g3cat should prepend to each page. Default is 0.
-L <lines>
limit lenght of output page to maximum <lines> lines.
SPECIAL-CASE OPTIONS
-w <width>
specifies the desired page width in pixels per line. Default is 1728 PELs, and this is mandatory if you want to send the fax to a
standard fax machine. If one of the input files doesn't match this line width (for example because it was created by a broken G3
creator), a warning is printed, and the line width is transparently fixed.
-a byte-align the end-of-line codes (EOL) in the file. Every EOL will end at a byte boundary, that is, with a 01 byte.
-p <pad>
specifies a minimum number of bytes that each output line must be padded to. Padding is done with 0-bits before the EOL code.
-R suppress output of end-of-page code (RTC).
Example
The following example will put a header line on a given g3 page, 'page1' and put the result into 'page2':
echo '$header' | pbmtext | pbm2g3 | g3cat - page1 >page2
FILES
--
BUGS
Hopefully none :-).
SEE ALSO
g32pbm(1), sendfax(8), faxspool(1)
AUTHORS
g3cat is Copyright (C) 1993 by Gert Doering, <gert@greenie.muc.de>
greenie 27 Oct 93 g3cat(1)