Having assumed that
- you being an sql developer as explained in post#1 NOT posting homework questions
- the original headers of both files shall be eliminated
- the 1 trailing in output line 2 and missing in line 3 is a hyphenation error
- usage of shell and grep are NOT compulsory
hi
i am having four files in a directory.like
1)sampleRej
2)exampleRej
3)samplemain
4)examplemain
my requirement is i have to search for the rejected files (sampleRej,exampleRej) in a directory.if these files in that directory then i have to delete the main files... (3 Replies)
Hi I am Newbie to Unix.Appreciate Help from forum
user would loada b.Csv File(Below example) in /data/m/ directory.Program need to read the b.csc to extract certain column and create a new file /data/d/ directory as csv file with new name.
User File Format
1232,samshouston,12345... (3 Replies)
Hi Gurus,
I am having an requirement. i have to read a list file which contains file names and send mail to different users based on the files in the list file.
eg. if file a.txt exists then send a mail to a@a.com
simillary for b.txt,c.txt etc.
Thanks for your help,
Nimu (6 Replies)
I have a requirement, which is as follows
*. Folder contains list of xmls. Script has to create new xml files by copying the existing one and renaming it by appending "_pre.xml" at the end.
*. Each file has multiple <Name>fileName</Name> entry. The script has to find the first occurance of... (1 Reply)
Hey guy,
how to make bash script to create foo.txt file and add current date into file content and that file always append.
example: today the script run and add today date into content foo.txt
and tomorrow the script will run and add tomorrow date in content foo.txt without remove today... (3 Replies)
Hello Guys ,
I need an another help regarding the below problem.
I want to create a new file based on the existing file ,where two columns will be changed according to user input .(say column 4 and column 5)
Please let me know how to proceed with
Thanks (3 Replies)
Hi guys,
i have a file in below format.let me explain first what i am trying to do .
i am making a file from this file , will rearrange these columns, then i will run several command(start/stop mentioned in this file) on unix environment. my requirements :
1. i have 27 servers , on each server... (4 Replies)
Hi to all,
I got this content/pattern from file http.log.20110808.gz
mail1 httpd: Account Notice: close igchung@abc.com 2011/8/7 7:37:36 0:00:03 0 0 1
mail1 httpd: Account Information: login sastria9@abc.com proxy sid=gFp4DLm5HnU
mail1 httpd: Account Notice: close sastria9@abc.com... (16 Replies)
Hi Guru's,
I am new to shell scripting. I have a unique requirement:
The system generates a single pdf(/tmp/ABC.pdf) file with Invoices for Multiple Customers, the format is something like this:
Page1 >> Customer 1 >>Invoice1 + invoice 2 >> Page1 end
Page2 >> Customer 2 >>Invoice 3 + Invoice 4... (3 Replies)
I have a txt file with a list of error messages in a xml tag format, and each error message is separated with a identifier(endresult).Need to split that and copy and create a new html file.Error message has some special character. how to escape the special character and insert my data into the... (7 Replies)
Discussion started by: DevAakash
7 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