Hi,
I have one situation. I have some 6-7 no. of files in one directory & I have to extract all the lines which exist in all these files. means I need to extract all common lines from all these files & put them in a separate file.
Please help. I know it could be done with the help of... (11 Replies)
Hello guys,
I need a script to get the common lines from two files with a criteria that if the first two columns match then I keep the maximum value of the 3rd column.(tab separated columns)
Sample input:
file1:
111 222 0.1
333 444 0.5
555 666 0.4
file 2:
111 222 0.7
555 666... (5 Replies)
Hello guys,
I need a script to get the common lines from two files with a criteria that if the first two columns match then I keep the maximum value of the 5th column.(tab separated columns) . 3rd and 4th columns corresponds to the row which has highest value for the 5th column.
Sample... (2 Replies)
I've been a Unix admin for nearly 30 years and never learned AWK. I've seen several similar posts here, but haven't been able to adapt the answers to my situation. AWK is so damn cryptic! ;)
I have a single file with ~900 lines (CSV list). Each line starts with an ID, but with different stuff... (6 Replies)
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)
Thanks everyone. I got that problem solved.
I require one more help here. (Yes, UNIX definitely seems to be fun and useful, and I WILL eventually learn it for myself. But I am now on a different project and don't really have time to go through all the basics. So, I will really appreciate some... (6 Replies)
Hi
I have a file like
1 2
1 2 3
1 5 6
11 12
10 2
7 5
17 12
I would like to have an output as
1 2 3 5 6 10 7
11 12 17
any help would be highly appreciated
Thanks (4 Replies)
Hello,
I have a file with 2 columns ( tableName , ColumnName) delimited by a Pipe like below . File is sorted by ColumnName.
Table1|Column1
Table2|Column1
Table5|Column1
Table3|Column2
Table2|Column2
Table4|Column3
Table2|Column3
Table2|Column4
Table5|Column4
Table2|Column5
From... (6 Replies)
Could it be possible to find common lines between all of the files in one folder? Just like comm -12 . So all of the files two at a time. I would like all of the outcomes to be written to a different files, and the file names could be simply numbers - 1 , 2 , 3 etc. All of the file names contain... (19 Replies)
Discussion started by: Eve
19 Replies
LEARN ABOUT V7
diff
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)