Hi,
I have two files. 1st file has 1 column (huge file containing ~19200000 lines) and 2nd file has 2 columns (small file containing ~6000 lines).
#################################
huge_file.txt
a
a
ab
b
##################################
small_file.txt
a 1.5
b 2.5
ab ... (4 Replies)
I have two files... file1 and file2.
Where columns 1 and 2 of file1 match columns 1 and 2 of file2 I want to create a new file that is all file1 + columns 3 and 4 of file2
:b: Many thanks if you know how to do this.... :b:
file1
31-101 106 0 92
31-101 106 29 ... (2 Replies)
Hello,
I have two files which are of the following format
File 1 which has two columns
Protein_ID Substitution
NP_997239 T53R
NP_060668 V267M
NP_058515 P856A
NP_001206 T55M
NP_006601 D371Y ... (2 Replies)
Hi all, I know this sounds suspiciously like a homework course; but, it is not.
My goal is to take a file, and match my "ID" column to the "Date" column, if those conditions are true, add the total number of minutes worked and place it in this file, while not printing the original rows that I... (6 Replies)
Kindly help merging information from two files with the following data structure.
I want to match for the CHR-SNP in Foo and get the columns that match from CHROM-rsID
Fields 1 & 2 of foo may have duplicates, however, a joint key of Fields $1$2$3$4 is unique.
Also would be helpful to clean up... (4 Replies)
Hi,
i have 2 files , the data i need to match is in masterfile and i need to pull out column 3 from master if column 1 and 2 match and output entire row to new file
I have tried with join and awk and i keep getting blank outputs or same file
is there an easier way than what i am... (4 Replies)
Discussion started by: axis88
4 Replies
LEARN ABOUT DEBIAN
plan9-read
CAT(1) General Commands Manual CAT(1)NAME
cat, read, nobs - catenate files
SYNOPSIS
cat [ file ... ]
read [ -m ] [ -n nline ] [ file ... ]
nobs [ file ... ]
DESCRIPTION
Cat reads each file in sequence and writes it on the standard output. Thus
cat file
prints a file and
cat file1 file2 >file3
concatenates the first two files and places the result on the third.
If no file is given, cat reads from the standard input. Output is buffered in blocks matching the input.
Read copies to standard output exactly one line from the named file, default standard input. It is useful in interactive rc(1) scripts.
The -m flag causes it to continue reading and writing multiple lines until end of file; -n causes it to read no more than nline lines.
Read always executes a single write for each line of input, which can be helpful when preparing input to programs that expect line-at-a-
time data. It never reads any more data from the input than it prints to the output.
Nobs copies the named files to standard output except that it removes all backspace characters and the characters that precede them. It is
useful to use as $PAGER with the Unix version of man(1) when run inside a win (see acme(1)) window.
SOURCE
/src/cmd/cat.c
/src/cmd/read.c
/bin/nobs
SEE ALSO cp(1)DIAGNOSTICS
Read exits with status eof on end of file or, in the -n case, if it doesn't read nlines lines.
BUGS
Beware of and which destroy input files before reading them.
CAT(1)