Dear All,
I need to add a header of one line to an already existing file.
I know that it can be achieved by the following:
echo "Header" > newfile
cat file1 >> newfile
But my problem is that file is huge and there is no space for creating a new file every time. Is there a way that I can... (5 Replies)
Hi guys,
Please help me if u have some solution.
I have a file with three columns separated by ':' -
INPUT_FILE
C416722_2 : calin Dirigent : Dirigent
AC4174_6 : Jac : cal_co
TC4260_5 : [no : lin kite
BC426302_1 : [no : calin Dirigent lin
JC426540_3 : lin Pymo_bin : calin
TC428_3 : no7... (4 Replies)
Hi Friends,
I want to know the command to add a new file in a existing tar file.
For Ex:
I have a tar file file1.tar with the contents
one.txt
two.txt
three.txt
Now I need to add file four.txt to this existing tar file, how can I do it?
Thanks in advance (4 Replies)
I have a file with 50,000 records in it, i have a requirement to use the same 50,000 records and add them 4 times to the same file to make a total of 200,000 records. I was wondering how to do this using ksh. Any help is greatly appreciated. (2 Replies)
Hi!
I would need some help to add the last two columns of one file into another file using awk (or something similar).
For example, I have:
file 1: file 2:
car book day root lag
bar look pay boot tag
tar took may moot sag
I want to have:... (5 Replies)
Hello
I have a file as below
chr1 start ref alt code1 code2
chr1 18884 C CAAAA 2 0
chr1 135419 TATACA T 2 0
chr1 332045 T TTG 0 2
chr1 453838 T TAC 2 0
chr1 567652 T TG 1 0
chr1 602541 ... (2 Replies)
Hello,
I am very now to this, hope you can help,
I am looking into editing a file in Solaris, with dinamic collums (lenght varies) and I need 2 things to be made, the fist is to filter the first column and third column from the file bellow file.txt, and create a new file with the 2 filtered... (8 Replies)
Good evening
I have the below requirements, as I am not an experts in Linux/Unix and am looking for your ideas how I can do this.
I have file called file1 and file2.
I need to get the second column which is text1_random_alphabets and find that in file 2, if it's exists then print the 3rd... (4 Replies)
Discussion started by: mychbears
4 Replies
LEARN ABOUT X11R4
od
OD(1) User Commands OD(1)NAME
od - dump files in octal and other formats
SYNOPSIS
od [OPTION]... [FILE]...
od [-abcdfilosx]... [FILE] [[+]OFFSET[.][b]]
od --traditional [OPTION]... [FILE] [[+]OFFSET[.][b] [+][LABEL][.][b]]
DESCRIPTION
Write an unambiguous representation, octal bytes by default, of FILE to standard output. With more than one FILE argument, concatenate
them in the listed order to form the input.
With no FILE, or when FILE is -, read standard input.
If first and second call formats both apply, the second format is assumed if the last operand begins with + or (if there are 2 operands) a
digit. An OFFSET operand means -j OFFSET. LABEL is the pseudo-address at first byte printed, incremented when dump is progressing. For
OFFSET and LABEL, a 0x or 0X prefix indicates hexadecimal; suffixes may be . for octal and b for multiply by 512.
Mandatory arguments to long options are mandatory for short options too.
-A, --address-radix=RADIX
output format for file offsets; RADIX is one of [doxn], for Decimal, Octal, Hex or None
--endian={big|little}
swap input bytes according the specified order
-j, --skip-bytes=BYTES
skip BYTES input bytes first
-N, --read-bytes=BYTES
limit dump to BYTES input bytes
-S BYTES, --strings[=BYTES]
output strings of at least BYTES graphic chars; 3 is implied when BYTES is not specified
-t, --format=TYPE
select output format or formats
-v, --output-duplicates
do not use * to mark line suppression
-w[BYTES], --width[=BYTES]
output BYTES bytes per output line; 32 is implied when BYTES is not specified
--traditional
accept arguments in third form above
--help display this help and exit
--version
output version information and exit
Traditional format specifications may be intermixed; they accumulate:
-a same as -t a, select named characters, ignoring high-order bit
-b same as -t o1, select octal bytes
-c same as -t c, select printable characters or backslash escapes
-d same as -t u2, select unsigned decimal 2-byte units
-f same as -t fF, select floats
-i same as -t dI, select decimal ints
-l same as -t dL, select decimal longs
-o same as -t o2, select octal 2-byte units
-s same as -t d2, select decimal 2-byte units
-x same as -t x2, select hexadecimal 2-byte units
TYPE is made up of one or more of these specifications:
a named character, ignoring high-order bit
c printable character or backslash escape
d[SIZE]
signed decimal, SIZE bytes per integer
f[SIZE]
floating point, SIZE bytes per float
o[SIZE]
octal, SIZE bytes per integer
u[SIZE]
unsigned decimal, SIZE bytes per integer
x[SIZE]
hexadecimal, SIZE bytes per integer
SIZE is a number. For TYPE in [doux], SIZE may also be C for sizeof(char), S for sizeof(short), I for sizeof(int) or L for sizeof(long).
If TYPE is f, SIZE may also be F for sizeof(float), D for sizeof(double) or L for sizeof(long double).
Adding a z suffix to any type displays printable characters at the end of each output line.
BYTES is hex with 0x or 0X prefix, and may have a multiplier suffix:
b 512
KB 1000
K 1024
MB 1000*1000
M 1024*1024
and so on for G, T, P, E, Z, Y.
EXAMPLES
od -A x -t x1z -v
Display hexdump format output
od -A o -t oS -w16
The default output format used by od
AUTHOR
Written by Jim Meyering.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report od translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
Full documentation at: <http://www.gnu.org/software/coreutils/od>
or available locally via: info '(coreutils) od invocation'
GNU coreutils 8.28 January 2018 OD(1)