Hi All,
I am trying to read data from two files and then compare them and only print the records on the screen that have a same ID.i.e TAGNO =CUSTOMERNO
For Eg
My Input Files are (a) Transaction (b) Customer detail
The data in file a is like:
TagNo Date Time Station... (0 Replies)
hi all,
I'm trying to resolve a scenario where we prompt the user to enter 1 or more disk names.
From there we would run a command on each disk which would give its location.
This would allow us to create a list of disks at location A, a list of disks at location B,....etc...
Any help... (1 Reply)
I have a file where i have files name with absolute path.
Ex: files.dat and contents are:
/root/xy/yz/zz/abc.txt
/root/xx/yy/zz/ac.txt
/root/xz/yz/zx/bc.txt
/root/xy/yz/zx/abcd.txt
now i want to create all above files(dummy files and can be 0 byte). i thought of using touch but it doesn't... (10 Replies)
Hello Everyone,
The situation is:
$ alias rm="sh abc.sh"
#abc.sh:
read input
echo "The input was: " $input
$ rm xyz.txt
should return
"The input was: xyz.txt"
Here, I want the alias "rm" to execute the file "abc.sh", where "abc.sh" should take "xyz.txt"... (1 Reply)
Hi
I used this command:
mplayer http://host/axis-cgi/mjpg/video.cgi -user root -passwd root \
-cache 1024 -fps 25.0 -nosound -vc ffh264 \
-demuxer 3 -dumpstream -dumpfile output.avi It's ok but...
Video Playing is very fast! Why? Is it a synch problem?
What parameter I have to use for... (1 Reply)
Hi,
I got a requirement to automate the process.
We have SLA files, there are some 80 SLA files comes from 1.30pm - 5.30pm.
I was asked to write a script to check for the SLA files in the load directory, if the files come then we got to send the mail to the group, if the mails doesnt come... (1 Reply)
Hello there, I am posting to seek help with a KSH script,
I am making a simple calculation program where the user can enter as many numbers as they like, I am getting their input using the read command, however I am not sure how to repeat doing this and storing the input in to new variables... (7 Replies)
Hi I'm trying to create a basic script that pauses for user input to verify a file name before generating the output.
I have numerous SSL certificate files which I am trying to determine the expiry date so what I'm trying to do is write a script so that is pauses to request the name of the .pem... (9 Replies)
Hi All,
I am really new to Linux.I am trying to write a script for creating a new directory by getting input of folder name from the user.Please help me in this regard.
#! /bin/bash
echo "Enter name of dir":$filename
mkdir -p $filename
When executing this I am getting following error
... (13 Replies)
Experts,
Need your help for this. Please support
My motive is to create seperate output file for each Input Files(File 1 and File2) in another folder say(/tmp/finaloutput)
Input files
File 1(1.1.1.1.csv)
a,b,c
43,17104773,3
45,17104234,4
File 2(2.2.2.2.csv)
a,b,c
43,17104773,1... (2 Replies)
Discussion started by: as7951
2 Replies
LEARN ABOUT NETBSD
cat
CAT(1) BSD General Commands Manual CAT(1)NAME
cat -- concatenate and print files
SYNOPSIS
cat [-beflnstuv] [-] [file ...]
DESCRIPTION
The cat utility reads files sequentially, writing them to the standard output. The file operands are processed in command line order. A
single dash represents the standard input, and may appear multiple times in the file list.
The word ``concatenate'' is just a verbose synonym for ``catenate''.
The options are as follows:
-b Implies the -n option but doesn't number blank lines.
-e Implies the -v option, and displays a dollar sign ('$') at the end of each line as well.
-f Only attempt to display regular files.
-l Set an exclusive advisory lock on the standard output file descriptor. This lock is set using fcntl(2) with the F_SETLKW command.
If the output file is already locked, cat will block until the lock is acquired.
-n Number the output lines, starting at 1.
-s Squeeze multiple adjacent empty lines, causing the output to be single spaced.
-t Implies the -v option, and displays tab characters as '^I' as well.
-u The -u option guarantees that the output is unbuffered.
-v Displays 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), hexdump(1), lpr(1), more(1), pr(1), tail(1), view(1), vis(1), fcntl(2)
Rob Pike, "UNIX Style, or cat -v Considered Harmful", USENIX Summer Conference Proceedings, 1983.
STANDARDS
The cat utility is expected to conform to the IEEE Std 1003.2-1992 (``POSIX.2'') specification.
The flags [-belnstv] 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! This is performed by the shell before cat is run.
BSD September 23, 2006 BSD