Hi,
I am having a file which contains as below
Names(aaaa
,bbbb
,cccc
,dddd)
now i want the file to be updated with new value 'eeee' as below
Names(aaaa
,bbbb
,cccc
,dddd
,eeee)
Is there a way to script this ?
Thanks, (5 Replies)
Hi, I am new in unix,
I just want to replace some values from text file according to column numbers. Like, I am having a table as given below:
val1 val2 val3 val4 val5
val6 val7 val8 val9
val10 val11 val12 val13
Now i want... (5 Replies)
Hello
Has anyone got an example shell script that I can use to compare the contents of two files.
The files should contain the same contents, eg.
file1.txt
apple
pear
grape
file2.txt
apple
pear
grape (2 Replies)
Hi,
Need help in writing a script to read the contents of this file test
Test
00a
00b
00c
00d
00e
00f
where it need to read each line to give a display such as
form meta from dev 00a , config=Striped; add dev 00b:00f to meta 00a
Can any one help me in writing this script (2 Replies)
I have a file called po.txt. Here is the content of the file:
<!DOCTYPE PurchaseOrderMessage (View Source for full doctype...)>
- <PurchaseOrder>
- <Header>
<MessageId>cdb3062b-685b-4cd5-9633-013186750e10</MessageId>
<Timestamp>2011-08-01T13:47:23.536-04:00</Timestamp>
</Header>
-... (4 Replies)
Hi Friends,
This is the only solution to my task. So, any help is highly appreciated.
I have a file
cat input1.bed
chr1 100 200 abc
chr1 120 300 def
chr1 145 226 ghi
chr2 567 600 unix
Now, I have another file by name
input2.bed (This file is a binary file not readable by the... (7 Replies)
Hello all,
I have a Kconfig file that looks like something below ...
================================
menu "Application type"
config GUI_TYPE_STANDARD
bool "Standard Application"
source "cfg/config/std.in"
source... (12 Replies)
Shell script logic
Hi
I have 2 input files like with file 1 content as (file1)
"BRGTEST-242" a.txt "BRGTEST-240" a.txt "BRGTEST-219" e.txt
File 2 contents as fle(2)
"BRGTEST-244" a.txt "BRGTEST-244" b.txt "BRGTEST-231" c.txt "BRGTEST-231" d.txt "BRGTEST-221" e.txt
I want to get... (22 Replies)
Like to have shell script to Read the given file contents into a merged one file with header of path+file name followed by file contents into a single output file.
While reading and merging the file contents into a single file, Like to keep the format of the source file.
... (4 Replies)
Discussion started by: Siva SQL
4 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