08-01-2008
No need for sort | uniq because sort -u will do it in one step.
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1. UNIX for Dummies Questions & Answers
hi,
I have the following input in file:
abc
ab
a
AB
b
c
a
C
B
When I use uniq -u file,the out put file is:
abc
ab
AB
c
v
B
C (17 Replies)
Discussion started by: hellsd
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2. UNIX for Dummies Questions & Answers
Hi,
I am trying to remove duplicate lines from a file. For example the contents of example.txt is:
this is a test
2342
this is a test
34343
this is a test
43434
and i want to remove the "this is a test" lines only and end up with the numbers in the file, that is, end up with:
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Hi,
how to remove the blank lines from the file only If we have more than one blank line.
thanks
rameez (8 Replies)
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4. Shell Programming and Scripting
please help me in getting following:
Input Desired output
x="foo" foo
x="foo foo" foo
x="foo foo" foo
x="foo abc foo" foo abc
x="foo foo1 foo2" foo foo1 foo2
I need to remove duplicated from string.. (8 Replies)
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5. Shell Programming and Scripting
Hello,
I am in need of removing duplicate lines from within a file per section.
File:
ABC1 012345 header
ABC2 7890-000
ABC3 012345 Header Table
ABC4
ABC5 593.0000 587.4800
ABC5 593.5000 587.6580 <= dup need to remove
ABC5 593.5000 ... (5 Replies)
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6. Shell Programming and Scripting
So I have two files. The first file, file1.txt, has lines of numbers separated by commas.
file1.txt
10,2,30,50
22,6,3,15,16,100
73,55
78,40,33,30,11
73,55
99,82,85
22,6,3,15,16,100
The second file, file2.txt, has sentences.
file2.txt
"the cat is fat"
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Hi all,
I have a file with the data
1 abc
2 123
3 ;
4 rao
5 bell
6 ;
7 call
8 abc
9 123
10 ;
11 rao
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Hi,
How do i remove a set of duplicate lines from a file.
My file contains the lines:
abc
def
ghi
abc
def
ghi
jkl
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Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
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Hi,
I have tried to remove dublicate lines based on first column with pipe delimiter . but i ma not able to get some uniqu lines
Command : sort -t'|' -nuk1 file.txt
Input :
38376KZ|09/25/15|1.057
38376KZ|09/25/15|1.057
02006YB|09/25/15|0.859
12593PS|09/25/15|2.803... (2 Replies)
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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)