Hi
My orginal file is like (100s of lines)
id host ip location remarks
1 host1 ip1 - xxx
2 host2 ip2 - xxx
3 host3 ip3 - xxx
--
--
9 host9 ip9 - xxx
I have a ref file like
host1 location1
host2 location2
host3 location3
--
--... (6 Replies)
I am trying to use sed to replace specific characters at a specific position in the file with a different value... can this be done?
Example:
File:
A0199999123
A0199999124
A0199999125
Need to replace 99999 in positions 3-7 with 88888.
Any help is appreciated. (5 Replies)
I am new to unix and awk/sed etc... using C-Shell.
Basically, I have a fixed length file that has 4 different record types on it, H, D, V, W all in column 1. I need to change all the W's in column 1 to D's. in the entire file. The W's can be anywhere in the file and must remain in the same... (3 Replies)
Hi,
I would like to use sed to replace NA to x ('s/NA/x/g'), but only in the 5th column of the space delimited text file, nowhere else. How do I go about doing that? Thanks! (1 Reply)
Can anyone please help with this? I have 2 files as given below.
If 2nd column of file1 has pattern foo1@a, find the matching 1st column in file2 & replace 2nd column of file1 with file2's value.
file1
abc_1 foo1@a ....
abc_1 soo2@a ...
def_2 soo2@a ....
def_2 foo1@a ........ (7 Replies)
Hi All, I will need an help with respect to replacing a range of columns on a non-delimited file using a particular string pattern.
Say file input is
MYNUMBERD000000-BAN CHUE INSNTS ** N+
MYAREDSDD000000+BAN CHUE INSNTS ** N+
MYDERFFFSD00000-GIR PENT - ACH ** ... (5 Replies)
Hi - I have a file "file1" of below format. Its a comma seperated file. Note that each string is enclosed in double quotes.
"abc","-0.15","10,000.00","IJK"
"xyz","1,000.01","1,000,000.50","OPR"
I want the result as:
"abc","-0.15","10000.00","IJK"
"xyz","1,000.01","1000000.50","OPR"
I... (8 Replies)
hello
i have file with 100k records and each one has certain value that starts at 28th column and certain value that starts at 88th column
e.g. 1st file
<25>1234567 ..... <88> 8573785485
i have aditional file with values which are related to value that starts at 88th column of the... (1 Reply)
Discussion started by: dell1520
1 Replies
9. Post Here to Contact Site Administrators and Moderators
In file, we have millions of records each of 1000 in length. And at specific position say 800 there is a space, we need to replace it with Character X if the ID in that row starts with 123.
So far i have used the below which is replacing space at that position to X but its not checking for... (3 Replies)
I will appreciate if you help me here in this script in Solaris Enviroment.
Scenario:
i have 2 files :
1) /tmp/TRANSACTIONS_DAILY_20180730.txt:
201807300000000004
201807300000000005
201807300000000006
201807300000000007
201807300000000008
2)... (10 Replies)
Discussion started by: teokon90
10 Replies
LEARN ABOUT DEBIAN
snowdrop
SNOWDROP(1) General Commands Manual SNOWDROP(1)NAME
sd-eng, sd-engf, sd-c - text watermarking and watermark recovery
SYNOPSIS
sd-eng [-6] -i origfile newfile "Recipient" ["Comment"]
sd-eng [-6] -e origfile newfile
sd-eng [-6] -l
DESCRIPTION
snowdrop is a stenographic text watermarking and watermark recovery system. It is composed of three programs:
sd-eng Watermark normal English text.
sd-engf
Watermark fine quality English text, yeilding higher quality output but encoding less information.
sd-c Watermark C code.
The three programs operate similarly, with the same parameters and usage. The watermark is encoded in using a number of techniques, such
as whitespace reformatting, typo insertation, word substitutions, punctuation changes, and for C code, logic reordering, variable name man-
gling, etc.
The watermark is a md5sum, which is retreivable from as little as 5 or 10 lines of the watermarked document. Even large changes to a medium
sized document should not obscure the watermark, as it is stored redundently in multiple independent channels.
The three usage modes are adding a watermark, checking for the presense of a watermark, and listing the contents of your database of water-
marks. Note that to later check a watermark, you must retain a copy of the original, un-watermarked file.
OPTIONS -i Inject a watermark into a file. You must pass it the original file, the filename to output the watwrmarked version to, information
about who you intend the watermarked file for, and an optional comment.
-e Extract a watermark from a file. Needs the original file and the new file that you suspect bears the watermark.
-l Lists the contents of the watermark database. Each of the three programs will have a different list.
-6 Enable 64 bit watermarking. The default is a weak 32 bit watermark.
ENVIRONMENT
SD_SYNONYMS
This variable can be used to point snowdrop at a customized synonyms file.
FILES
~/.snowdrop/database
Database of watermarked files.
SEE ALSO
/usr/share/snowdrop/README
Explain snowdrop in more depth, its limitations, and how to write additional watermarking modules for other tpyes of files.
AUTHOR
Michal Zalewski <lcamtuf@coredump.cx>
SNOWDROP(1)