10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have a file
Line 1 a
Line 22
Line 33
Line 1 b
Line 22
Line 1 c
Line 4
Line 5
I want to delete all lines before last occurrence of a line which contains something which is defined in a variable. Say a variable var contains 'Line 1', then I need the following in the output.
... (21 Replies)
Discussion started by: Soham
21 Replies
2. Shell Programming and Scripting
GM,
I have an issue at work, which requires a simple solution. But, after multiple attempts, I have not been able to hit on the code needed.
I am assuming that sed, awk or even perl could do what I need.
I have an application that adds extra blank page feeds, for multiple reports, when... (7 Replies)
Discussion started by: jxfish2
7 Replies
3. Shell Programming and Scripting
Hi - I have req to join broken lines and remove empty lines but should NOT be in one line. It has to be as is line by line. The challenge here is there is no end of line/start of line char.
thanks in advance
Source:-
2003-04-34024|04-10-2003|Claims|Claim|01-13-2003|Air Bag:Driver;... (7 Replies)
Discussion started by: Jackceasar123
7 Replies
4. UNIX for Dummies Questions & Answers
Hi Everybody! First post! Totally noobie.
I'm using the terminal to read a poorly formatted book.
The text file contains, in the middle of paragraphs, hyphenation to split words that are supposed to be on multiple pages. It looks ve -- ry much like this.
I was hoping to use grep -v " -- "... (5 Replies)
Discussion started by: AxeHandle
5 Replies
5. Shell Programming and Scripting
This is my problem, my file (file A) contains the following information:
Now, I would like to create a file (file B) containing only the lines with 10 or more characters but less than 20 with their corresponding ID:
Then, I need to compare the entries and determine their frequency. Thus, I... (7 Replies)
Discussion started by: Xterra
7 Replies
6. Shell Programming and Scripting
I have an awk script that replaces ">" with
%
%>
%< SOURCE", ++i
%( PHASE 1", i
I use the following script
/>/ {
if ( FNR > 1 ) {
print "%)"
print "%>"
}
print ""
print "%< SOURCE", ++i (11 Replies)
Discussion started by: kristinu
11 Replies
7. Shell Programming and Scripting
Hello to all,
I am looking for a way to display only the names of function (calls & definition) of a C++ source code.There is already a post related to this, but the script is to find the functions using a specific variable, and the replies are not that convincing since they cannot be used for... (2 Replies)
Discussion started by: frozensmilz
2 Replies
8. Shell Programming and Scripting
Hi,
Please provide shell script to Remove empty lines(space) between two lines containing strings in a file.
Input File :
A1/EXT "BAP_BSC6/07B/00" 844 090602 1605
RXOCF-465 PDTR11 1
SITE ON BATTERY
A2/EXT... (3 Replies)
Discussion started by: sudhakaryadav
3 Replies
9. Shell Programming and Scripting
I have a script which goes to different directories and gives the values of all the input parameters, Something as follows
cd /opt
grep script-filter = yes *.conf
grep user-and-group-in-same-suffix = yes *.conf
grep worker-threads = 300 *.conf
grep failover-auth = *.conf
grep... (9 Replies)
Discussion started by: openspark
9 Replies
10. Shell Programming and Scripting
I want to write a shell script that will remove lines of C code that is defined under a certain flag, for eg, "#ifdef PRODUCT" in all the C files in a directory. Please help me somebody..I'm clueless!! (1 Reply)
Discussion started by: laxmi
1 Replies
DIFF(1) General Commands Manual DIFF(1)
NAME
diff - differential file comparator
SYNOPSIS
diff [ -efbh ] file1 file2
DESCRIPTION
Diff tells what lines must be changed in two files to bring them into agreement. If file1 (file2) is `-', the standard input is used. If
file1 (file2) is a directory, then a file in that directory whose file-name is the same as the file-name of file2 (file1) is used. The
normal output contains lines of these forms:
n1 a n3,n4
n1,n2 d n3
n1,n2 c n3,n4
These lines resemble ed commands to convert file1 into file2. The numbers after the letters pertain to file2. In fact, by exchanging `a'
for `d' and reading backward one may ascertain equally how to convert file2 into file1. As in ed, identical pairs where n1 = n2 or n3 = n4
are abbreviated as a single number.
Following each of these lines come all the lines that are affected in the first file flagged by `<', then all the lines that are affected
in the second file flagged by `>'.
The -b option causes trailing blanks (spaces and tabs) to be ignored and other strings of blanks to compare equal.
The -e option produces a script of a, c and d commands for the editor ed, which will recreate file2 from file1. The -f option produces a
similar script, not useful with ed, in the opposite order. In connection with -e, the following shell program may help maintain multiple
versions of a file. Only an ancestral file ($1) and a chain of version-to-version ed scripts ($2,$3,...) made by diff need be on hand. A
`latest version' appears on the standard output.
(shift; cat $*; echo '1,$p') | ed - $1
Except in rare circumstances, diff finds a smallest sufficient set of file differences.
Option -h does a fast, half-hearted job. It works only when changed stretches are short and well separated, but does work on files of
unlimited length. Options -e and -f are unavailable with -h.
FILES
/tmp/d?????
/usr/lib/diffh for -h
SEE ALSO
cmp(1), comm(1), ed(1)
DIAGNOSTICS
Exit status is 0 for no differences, 1 for some, 2 for trouble.
BUGS
Editing scripts produced under the -e or -f option are naive about creating lines consisting of a single `.'.
DIFF(1)
Removing lines of code defined under flag