i would like to scan file in for duplicate lines, and print the duplicates to another file,
oh and it has to be case insensitive.
example
line1
line2
line2
line3
line4
line4
outputfile:
line2
line4
any ideas (5 Replies)
Hi, I have a noob question . Can someone help me how to concatenate line by line using this variables?
var1:
Apple|
Banana|
var2:
Red
Yellow
then how can I concatenate both line by line? in which the result would be:
Apple|Red
Banana|Yellow
just to generate a row result i was... (6 Replies)
Hi guys, I'm really happy to find this forum
I have a log file, and I have to find all lines that have "error" word, and then save this output in file, the output file has to have just only one line to any Duplicated lines and counter that show how many time this lines duplicated?
I already... (2 Replies)
I have a file a.txt having content like
deepak
ram
sham
deepram
sita
kumar
I Want to delete the first line containing "deep" ...
I tried using...
grep -i 'deep' a.txt
It gives me 2 rows...I want to delete the first one..
+ need to know the command to delete the line from... (5 Replies)
I have several hundreds of tiny files which need to be concatenated into one single line and all those in a single file. Some files have several blank lines. Tried to use this script but failed on it.
awk 'END { print r } r && !/^/ { print FILENAME, r; r = "" }{ r = r ? r $0 : $0 }' *.txt... (8 Replies)
I need help in figuring out hoe to delete lines in a data file. The data file is huge. I am currently using "vi" to search and delete the lines - which is cumbersome since it takes lots of time to save that file (due to its huge size).
Here is the issue. I have a data file with the following... (4 Replies)
Hello to all,
I'm new to perl, I have input file that contains the string below:
315350535ff450000014534130101ff4500ff45453779ff450ff45545f01ff45ff453245341ff4500000545000This string has as line separator "ff45". So, I want to print each line but the code below is not working.
perl -pe '... (2 Replies)
I have a script that builds a database ~30 million lines, ~3.7 GB .cvs file. After multiple optimzations It takes about 62 min to bring in and parse all the files and used to take 10 min to remove duplicates until I was requested to add another column. I am using the highly optimized awk code:
awk... (34 Replies)
Hi,
Do anybody experience how to concatenate multiple line into one line by using awk or perl command?
Input file:
>set1
QAWEQRQ@EWQEASED
ASDAEQW
QAWEQRQTQ
ASRFQWRGWQ
From the above Input file, it got 5 lines
Desired output file:
>set1... (6 Replies)
Hello All !
I need your help on this case,
I have a csv file with this:
ITEM105;ARI FSR;2016-02-01 08:02;243
ITEM101;ARI FSR;2016-02-01 06:02;240
ITEM032;RNO TLE;2016-02-01 11:03;320
ITEM032;RNO TLE;2016-02-02 05:43;320
ITEM032;RNO TLE;2016-02-01 02:03;320
ITEM032;RNO... (2 Replies)
Discussion started by: vadim-bzh
2 Replies
LEARN ABOUT DEBIAN
stracat
STRACAT(3pub) C Programmer's Manual STRACAT(3pub)NAME
stracat - concatenate many strings into an allocated memory block
SYNOPSIS
#include <publib.h>
char *stracat(const char *s, ...);
DESCRIPTION
stracat will allocate a block of memory with malloc and concatenate all arguments strings into this block. The user is supposed to free
the returned block. The end of the argument list is signalled by a null pointer.
RETURN VALUE
stracat returns a pointer to the allocated block, or NULL if it could not be allocated.
EXAMPLE
To concatenate "hello, " and "world", one might say the following.
p = stracat("hello, ", "world", (char *)NULL);
if (p != NULL)
puts(p);
Please note that it is necessary to case NULL as in the example above,
since there is no information about the type of the argument available
in the prototype, and since an unadorned NULL might not be of the
correct type. (See any good C reference book or the comp.lang.c FAQ for
more information.)
SEE ALSO publib(3), strcat(3)AUTHOR
Lars Wirzenius (lars.wirzenius@helsinki.fi)
Publib C Programmer's Manual STRACAT(3pub)