Quick question,
File A has one line (10 charachters), File B has one line (10 charachters).
how do a concat these two files together to produce a file (File C) that has the contents of Files A + B together onto one line of 20 Charachters
if I use:
cat FileA FileB > FileC
I get the... (5 Replies)
Hi,
I was a typical Windows guy. Like to do things just by clicking my mouse:cool:. I got a new job now...where they are big on unix.
I am trying to wet my fingures now with unix. Haven't taken the dive yet.
I am trying to find a solution for this problem.
Please help me with some... (4 Replies)
i have data files in different directories like /jadat
/cadat etcc... i have list of this directories in a file files.
content of files:
ja
ca
directories:
/jadat
/cadat
file in each of these directories
natt_trans_like.dat
i need to loop though each directory for a... (1 Reply)
Hi all,
I have a directory with many subdirectories each named like so: KOG0001, KOG0002, ...KOG9999.
Each of these subdirectories contain a variable number two kinds of files (nuc and prot) named like so: Capitella_sp_nuc_hits.fasta (nuc) and Capitella_sp_prot_hits.fasta (prot). The... (2 Replies)
Hi, sometimes one wants to edit files while still seeing output of earlier commands in terminal. I've found out that cat test && cat - >> test does the trick for displaying file content and adding lines but I believe I saw a much cooler command that was also able to erase lines from files. I cannot... (6 Replies)
I am concatenating txt-files using cat:
cat *.txt > file.dat
However, the same directory has the installation instructions included, which is also a txt file: install.txt
I currently have the install.txt file renamed to install._txt, but I prefer a solution using regular expressions.
Is there... (5 Replies)
I want to printing into two files under difference situation.
For example, file 1 name.txt
>gma-miR172a Glyma02g28845
>gma-miR1513a-3p Glyma02g15840
>gma-miR166a-5p Glyma02g15840
>gma-miR1530 Glyma02g15130
>gma-miR1507a Glyma02g01841
File 2 a.gff
Glyma01g07930 ... (4 Replies)
I am trying to cat 3 files. They all have the same name MFExtract.txt. But, they are in 3 seperate file names. Any idea how I could cat the 3 together. It's throwing me off figuring out a way because the names are the same. I was thinking just doing a 3 cat commands with the full path names and... (2 Replies)
I am new to Linux and I am trying to cat only N files in a folder. N is dynamically given number at runtime.
If I give N as 2 then cat only 2 files in the folder
and If I give N as 5 then cat only 5 files in the folder.
Is there any way to do that? (6 Replies)
Discussion started by: KMusunuru
6 Replies
LEARN ABOUT DEBIAN
plan9-cat
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)