Grep last two lines, calc & adding comments

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Using Grep & find & while read line in a script

Hello people! I would like to create one script following this stage I have one directory with 100 files File001 File002 ... File100 (This is the format of content of the 100 files) 2012/03/10 12:56:50:221875936 1292800448912 12345 0x00 0x04 0 then I have one...

2. UNIX for Dummies Questions & Answers

Remove blank lines and comments from text file

Hi, I am using BASH. How can I remove any lines in a text file that are either blank or begin with a # (ie. comments)? Thanks in advance. Mike

3. Shell Programming and Scripting

Adding new lines to a file + adding suffix to a pattern

I need some help with adding lines to file and substitute a pattern. Ok I have a file: #cat names.txt name: John Doe stationed: 1 name: Michael Sweets stationed: 41 . . . And would like to change it to: name: John Doe employed permanently stationed: 1-office

4. UNIX for Advanced & Expert Users

grep source code and exclude comments

I often find myself grepping source code for a variable name and many times the name would be present in comment lines that I 'd prefer not to see. Do you guys know any tricks to filter out comments? Example: snippet of the source code /*** * type comment 1 ***/ void ...

5. Shell Programming and Scripting

Sed script, changing all C-comments to C++-comments

I must write a script to change all C++ like comments: // this is a comment to this one /* this is a comment */ How to do it by sed? With file: #include <cstdio> using namespace std; //one // two int main() { printf("Example"); // three }//four the result should be:

6. Shell Programming and Scripting

grep string & a few lines after

i need to grep a STRING_A & the next few lines after the STRING_A example file: STRING_A yada yada line 1 line 2 STRING_B yada yada line 1 line 2 line 3 STRING_A yada yada line 1 line 2 line 3 line 4 STRING_A yada yada line 1 line 2 line 3 line 4

7. UNIX for Advanced & Expert Users

Add Comments to the specifi lines i na file

I have a requirement like below.I need to Comment some lines in a file. File contains following information. { attribute1 attribute2 atrribute3 attribute4 attribute5 attribute6 attribute7 } I have a requirement like some times i need to comment lines 3 to before '}' and some...

8. UNIX for Dummies Questions & Answers

How to put the comments to 50 lines, using vi editor?

Hi All, Please let me know how I can put a comment (e.g // or #) to more than 50 lines using vi editor in a .cpp/.sh file. Thanks in advance.

9. Shell Programming and Scripting

grep string & next n lines

need help on this. let say i hv 1 file contains as below: STRING Description bla bla bla Description yada yada yada Data bla bla Data yada yada how do i want to display n lines after the string? thanks in advance!

LEARN ABOUT HPUX

fmt

fmt(1)							      General Commands Manual							    fmt(1)

NAME

       fmt - format text

SYNOPSIS

       width] [file...]

DESCRIPTION

       The  command is a simple text formatter that fills and joins lines to produce output lines of (up to) the number of characters specified in
       the width option.  The default width is 72.  concatenates the arguments.  If none are given, formats text from the standard input.

       Blank lines are preserved in the output, as is the spacing between words.  does not fill lines beginning with a	period	for  compatibility
       with Nor does it fill lines starting with

       Indentation is preserved in the output and input lines with differing indentation are not joined (unless is used).

       can also be used as an in-line text filter for the command:

       reformats the text between the cursor location and the end of the paragraph.

   Options
       recognizes the following options:

	      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.

	      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.

	      Fill output lines to up to
		    width columns.

WARNINGS

       The width option is acceptable for BSD compatibility, but it may go away in future releases.

SEE ALSO

       nroff(1), vi(1).

																	    fmt(1)

Shell Programming and Scripting