Using dd or similar tools to recover data from 2 damaged cdroms, I need a way to then combine the 2 files, 1 from each cd, and make a good file: this all result from finding that certain cd's tops scratch easily even when using the "proper" cd markers, hence making the file useless, however the... (1 Reply)
Hi,
I have 5 files basically;namely file1.txt situated each at folder A to E respectively.
I would like to extract out third column from each of these file1.txt from folder A to folder E. Also, I wanted to extract the first and second column which are common. In other words, e.g
... (6 Replies)
I need to write a shell script which combines/joins 3 text files into one file. Do i put the txt files in the same folder as my script? Here is what i have:
#!/bin/bash
file1=$1
file2=$2
file3=$3
out="output.txt"
count=0
if
then
echo "$(basename $0) file1 file2 file3"
... (3 Replies)
my first post ... please be gentle.
I have been working on a script to get info out of mysql. Its a support ticket system database OTRS. I can write the subject of open tickets to a text file with a unique user id.
I also have a text file with the unique user id, username and email adres. I... (11 Replies)
Hi, Great minds, I have some files, in fact header files, of CTD profiler, I tried a lot C programming, could not get output as I was expected, because my programming skills are very poor, finally, joined unix forum with the hope that, I may get what I want, from you people,
Here I have attached... (17 Replies)
i made a script on my own. this is for the inventory to all of my AWS servers, and i run it to all of my servers to get the hostname, please look at file2. Then i need some data in file3 as well,. i need to combine them
#cat file1
192.10.1.41
server.age.com
######
192.10.0.40
ssh cant... (10 Replies)
Hi,
How can I combine the data of of three files into one new file?
I try to give as much informations as possible.
The three existing files are called file1 file2 and file3
the new file should named output_combined.
The size of the files will be around 900 words/lines each .. but always... (5 Replies)
Discussion started by: MyMemberName
5 Replies
LEARN ABOUT OSX
cat
CAT(1) BSD General Commands Manual CAT(1)NAME
cat -- concatenate and print files
SYNOPSIS
cat [-benstuv] [file ...]
DESCRIPTION
The cat utility reads files sequentially, writing them to the standard output. The file operands are processed in command-line order. If
file is a single dash ('-') or absent, cat reads from the standard input. If file is a UNIX domain socket, cat connects to it and then reads
it until EOF. This complements the UNIX domain binding capability available in inetd(8).
The options are as follows:
-b Number the non-blank output lines, starting at 1.
-e Display non-printing characters (see the -v option), and display a dollar sign ('$') at the end of each line.
-n Number the output lines, starting at 1.
-s Squeeze multiple adjacent empty lines, causing the output to be single spaced.
-t Display non-printing characters (see the -v option), and display tab characters as '^I'.
-u Disable output buffering.
-v Display non-printing characters so they are visible. Control characters print as '^X' for control-X; the delete character (octal
0177) prints as '^?'. Non-ASCII characters (with the high bit set) are printed as 'M-' (for meta) followed by the character for the
low 7 bits.
EXIT STATUS
The cat utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
The command:
cat file1
will print the contents of file1 to the standard output.
The command:
cat file1 file2 > file3
will sequentially print the contents of file1 and file2 to the file file3, truncating file3 if it already exists. See the manual page for
your shell (i.e., sh(1)) for more information on redirection.
The command:
cat file1 - file2 - file3
will print the contents of file1, print data it receives from the standard input until it receives an EOF ('^D') character, print the con-
tents of file2, read and output contents of the standard input again, then finally output the contents of file3. Note that if the standard
input referred to a file, the second dash on the command-line would have no effect, since the entire contents of the file would have already
been read and printed by cat when it encountered the first '-' operand.
SEE ALSO head(1), more(1), pr(1), sh(1), tail(1), vis(1), zcat(1), setbuf(3)
Rob Pike, "UNIX Style, or cat -v Considered Harmful", USENIX Summer Conference Proceedings, 1983.
STANDARDS
The cat utility is compliant with the IEEE Std 1003.2-1992 (``POSIX.2'') specification.
The flags [-benstv] are extensions to the specification.
HISTORY
A cat utility appeared in Version 1 AT&T UNIX. Dennis Ritchie designed and wrote the first man page. It appears to have been cat(1).
BUGS
Because of the shell language mechanism used to perform output redirection, the command ``cat file1 file2 > file1'' will cause the original
data in file1 to be destroyed!
The cat utility does not recognize multibyte characters when the -t or -v option is in effect.
BSD March 21, 2004 BSD