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Full Discussion: Delete blank lines in a file
Top Forums Shell Programming and Scripting Delete blank lines in a file Post 302636619 by rkumar28 on Monday 7th of May 2012 05:34:32 PM
Old 05-07-2012
Delete blank lines in a file

Hi All,

I have a file and I need to delete the lines that are blank and is starting with some characters below. Something like below:

Code:
Regular Ascii File:

Line1:  AGODA1	BUSAN||SK	Lord Beach	4/6/2012	4/7/2012	68060
Line2:  AGODA2	BUSAN||SK	Beach Hotel	4/6/2012	4/7/2012	610200
Line3:  Skahds4
Line4:  AMAN12	CHI	MMa	4/6/2012	4/7/2012	612134
Line5:  Depp
Line6:  ROGER|south|MMa1|4/6/2012|4/7/2012|53106
Line7:  Mango
And so on

I need to delete the lines that has character in the beginning but nothing after that. In my case, I need to delete lines 3, line 5 and line 7(which are shown in bold above).

I will really appreciate any advice.
rkumar28
 

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fmt(1)								   User Commands							    fmt(1)

NAME
fmt - simple text formatters SYNOPSIS
fmt [-cs] [-w width | -width] [inputfile...] DESCRIPTION
fmt is a simple text formatter that fills and joins lines to produce output lines of (up to) the number of characters specified in the -w width option. The default width is 72. fmt concatenates the inputfiles listed as arguments. If none are given, fmt formats text from the standard input. Blank lines are preserved in the output, as is the spacing between words. fmt does not fill nor split lines beginning with a `.' (dot), for compatibility with nroff(1). Nor does it fill or split a set of contiguous non-blank lines which is determined to be a mail header, the first line of which must begin with "From". Indentation is preserved in the output, and input lines with differing indentation are not joined (unless -c is used). fmt can also be used as an in-line text filter for vi(1). The vi command: !}fmt reformats the text between the cursor location and the end of the paragraph. OPTIONS
-c Crown margin mode. Preserve the indentation of the first two lines within a paragraph, and align the left margin of each subsequent line with that of the second line. This is useful for tagged paragraphs. -s Split lines only. Do not join short lines to form longer ones. This prevents sample lines of code, and other such formatted text, from being unduly combined. -w width | -width Fill output lines to up to width columns. OPERANDS
inputfile Input file. ENVIRONMENT VARIABLES
See environ(5) for a description of the LC_CTYPE environment variable that affects the execution of fmt. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
nroff(1), vi(1), attributes(5), environ(5) NOTES
The -width option is acceptable for BSD compatibility, but it may go away in future releases. SunOS 5.10 9 May 1997 fmt(1)
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