The solution shared by you is very impressive..... but in case if file1 has same lines multiple times (which is common to other files as well) then it will result in multiple occurrence of that line in output.
Maybe we can use sort and unique to overcome this little problem somewhat like:
and then apply while loop on this tmp. file
Hi,
There are multiple files like
file1_11
file2_11
file3_11.....and so on.
How to rename them such tht the suffix _11 is removed and they become file1, file2, file3.
Any help is appreciated.
Regards
er_ashu (1 Reply)
Hi,
I'm using AWK to try to extract data from multiple files (*.txt). The script should look for a flag that occurs at a specific position in each file and it should return the data to the right of that flag.
I should end up with one line for each file, each containing 3 columns:... (8 Replies)
Hi,
I'd like to process multiple files. For example:
file1.txt
file2.txt
file3.txt
Each file contains several lines of data. I want to extract a piece of data and output it to a new file.
file1.txt ----> newfile1.txt
file2.txt ----> newfile2.txt
file3.txt ----> newfile3.txt
Here is... (3 Replies)
I have two (or more, to make it generic) csv files. Each line contains words separated by comma. None of words have any space. The number of words per line is not fixed. Some may have one, and some may have 12... The number of lines per file is also not fixed.
What I need is to find common words... (1 Reply)
Hello everyone
A few years Ago the user radoulov posted a fancy solution for a problem, which was about finding common lines (gene variation names) between multiple samples (files). The code was:
awk 'END {
for (R in rec) {
n = split(rec, t, "/")
if (n > 1)
dup = dup ?... (5 Replies)
I have this code
awk 'NR==FNR{a=$1;next} a' file1 file2
which does what I need it to do, but for only two files. I want to make it so that I can have multiple files (for example 30) and the code will return only the items that are in every single one of those files and ignore the ones... (7 Replies)
Hi,
I have directory with multiple files from which i need to extract portion of specif lines and insert it in a new file, the new file will contain a separate columns for each file data.
Example:
I need to extract Value_1 & Value_3 from all files and insert in output file as below:
... (2 Replies)
Hi,
I have 5 files with two columns. I need to merge all the 5 files based on column 1. If any of them are missing then corresponding 2nd column should be substituted by missing value.
I know hoe to do this for 2 files. but how can I implement for 5 files. I tried this based on 5 files but it... (2 Replies)
Hi all,
Say i have multiple files x1 x2 x3 x4, all with common header (date, time, year, age),,
How can I merge them to one singe file "X" in shell scripting
Thanks for your suggestions. (2 Replies)
Discussion started by: msarguru
2 Replies
LEARN ABOUT NETBSD
comm
COMM(1) BSD General Commands Manual COMM(1)NAME
comm -- select or reject lines common to two files
SYNOPSIS
comm [-123f] file1 file2
DESCRIPTION
The comm utility reads file1 and file2, which should be sorted lexically, and produces three text columns as output: lines only in file1;
lines only in file2; and lines in both files.
The filename ``-'' means the standard input.
The following options are available:
-1 Suppress printing of column 1.
-2 Suppress printing of column 2.
-3 Suppress printing of column 3.
-f Fold case in line comparisons.
Each column will have a number of tab characters prepended to it equal to the number of lower numbered columns that are being printed. For
example, if column number two is being suppressed, lines printed in column number one will not have any tabs preceding them, and lines
printed in column number three will have one.
comm assumes that the files are lexically sorted; all characters participate in line comparisons.
EXIT STATUS
comm exits 0 on success, >0 if an error occurred.
SEE ALSO cmp(1), diff(1), sort(1), uniq(1)STANDARDS
The comm utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').
BSD June 6, 1993 BSD