01-29-2014
You have changed your requirements so many times that I have absolutely no idea what you want to do. Please give us a complete set of requirements.
Are we processing a single line in a file or every line in a file? If it is a single line, how do we identify which line you want to process? If some lines are not to be processed, are they copied unchanged from the input to the output, or are they removed from the output?
What constitutes a field?
Are you trying to change data from a certain point in a field to the end of that field, to the end of that line, for some number of characters in that field, or for some number of characters in that line?
This User Gave Thanks to Don Cragun For This Post:
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
--------------------------------------------------------------------------------
Have to check in a file that the lines starting with 620 and 705
are ending at same posiotin.
82012345
62023232323
70523949558
62023255454
9999
In the above lines, i have to check the lines starting... (1 Reply)
Discussion started by: senthil_is
1 Replies
2. Shell Programming and Scripting
I've got a file that would have lines similar to:
12345678 x.00 xx.00 x.00 xxx.00 xx.00 xx.00 xx.00
23456781 x.00 xx.00 xx.00 xx.00 xx.00 x.00 xxx.00 xx.00 xx.00 xx.00
34567812 x.00 xx.00 x.00 xxx.00 xx.00 xx.00 xx.00
45678123 x.00 xx.00 xx.00 xx.00 xx.00 x.00 xxx.00 xx.00 xx.00 xx.00 xx.00... (10 Replies)
Discussion started by: Cailet
10 Replies
3. Shell Programming and Scripting
Hi, guys. I have one question:
How can I search for a line with certain string in it and then insert a string into this line?
For example:
There is a file called shadow, the contents of it are below:
**************************
...
yuanz:VIRADxMsadfDF/Q:0:0:50:7:::... (9 Replies)
Discussion started by: daikeyang
9 Replies
4. Shell Programming and Scripting
I have two files abc.dat and sant.dat (Big file 60k rows)
for every line's 1,4 of abc.dat need to seach if this is present on 28,4 of sant.dat every line.
if its present the output needs to go to bde.dat
Example:
contents abc.dat
aaaa
bbbb
cccc
dddd
contents sant.dat
this is... (4 Replies)
Discussion started by: ssantoshss
4 Replies
5. Shell Programming and Scripting
hello I'm doing a unix program and i'm using many file csv.in each csv file the colums are separated by ";" I would like to know the position of a pattern. For example for a line yyyy, bbbb, cccc; ddddd;eeee. I will like for example by finding the position of the pattern "cccc" and the response is... (6 Replies)
Discussion started by: papis
6 Replies
6. Shell Programming and Scripting
Hi,
I am trying to get an output like :
+----------------------------------+ ----------- +
+ some variable substitution + some text +
Is there a way I can specify in printf (in ksh) the particular position I want to print a character, and also repeat a character from... (1 Reply)
Discussion started by: neil.k
1 Replies
7. Shell Programming and Scripting
Hi,
I have some files that i want to concatene and put each of lines of this files on a specific position :
File1
AAAAAAA
BBBBBBB
CCCCCCC
File2
DDDDDDD
EEEEEEE
FFFFFFF
File3
GGGGGG
HHHHHH
IIIIII
New file (6 Replies)
Discussion started by: apippo70
6 Replies
8. Shell Programming and Scripting
Need command for position based replace:
I need a command to replace with 0 for characters in the positions 11 to 20 to all the lines starts with 6 in a file.
For example the file ABC.txt has:
abcdefghijklmnopqrstuvwxyz
6abcdefghijklmnopqrstuvwxyz
abcdefghijklmnopqrstuvwxyz... (4 Replies)
Discussion started by: thangabalu
4 Replies
9. Shell Programming and Scripting
Hi,
I need to remove line breaks from a file, but only the ones at specific position.
Input file:
this is ok
this line is divided at posit
ion 30. The same as this one,
also position 30
the rest of lines are ok
with different lengths
The longest ones are always s
plitted at same... (15 Replies)
Discussion started by: qranumo
15 Replies
10. Shell Programming and Scripting
I will appreciate if you help me here in this script in Solaris Enviroment.
Scenario:
i have 2 files :
1) /tmp/TRANSACTIONS_DAILY_20180730.txt:
201807300000000004
201807300000000005
201807300000000006
201807300000000007
201807300000000008
2)... (10 Replies)
Discussion started by: teokon90
10 Replies
LEARN ABOUT OPENDARWIN
uniq
UNIQ(1) BSD General Commands Manual UNIQ(1)
NAME
uniq -- report or filter out repeated lines in a file
SYNOPSIS
uniq [-c | -d | -u] [-i] [-f num] [-s chars] [input_file [output_file]]
DESCRIPTION
The uniq utility reads the specified input_file comparing adjacent lines, and writes a copy of each unique input line to the output_file. If
input_file is a single dash ('-') or absent, the standard input is read. If output_file is absent, standard output is used for output. The
second and succeeding copies of identical adjacent input lines are not written. Repeated lines in the input will not be detected if they are
not adjacent, so it may be necessary to sort the files first.
The following options are available:
-c Precede each output line with the count of the number of times the line occurred in the input, followed by a single space.
-d Only output lines that are repeated in the input.
-f num Ignore the first num fields in each input line when doing comparisons. A field is a string of non-blank characters separated from
adjacent fields by blanks. Field numbers are one based, i.e. the first field is field one.
-s chars
Ignore the first chars characters in each input line when doing comparisons. If specified in conjunction with the -f option, the
first chars characters after the first num fields will be ignored. Character numbers are one based, i.e. the first character is
character one.
-u Only output lines that are not repeated in the input.
-i Case insensitive comparison of lines.
DIAGNOSTICS
The uniq utility exits 0 on success, and >0 if an error occurs.
COMPATIBILITY
The historic +number and -number options have been deprecated but are still supported in this implementation.
SEE ALSO
sort(1)
STANDARDS
The uniq utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
HISTORY
A uniq command appeared in Version 3 AT&T UNIX.
BSD
June 6, 1993 BSD