The cat command is not necessary since sed can read a file on its own.
The red part is matching another 16 characters, and when you \1 those 16 matched chars are discarded and replaced by AAAAAAAA.
Code:
sed 's/\(.\{16\}\).\{8\}/\1AAAAAAAA/' file
The red part has to be the same length of the substitution if you do not want to truncate the original line any farther.
---------- Post updated at 05:25 PM ---------- Previous update was at 05:02 PM ----------
You can do it with many other programs, however I prefer Perl.
How to I get the nth character from a string in shell script. For instance, I have a string London. I want to get, say the first character (L) from the string. How do I do this in unix shell?
Thankx (4 Replies)
Hi all,
If you look at the example below,I want to replace the 21st character (,) with a period (.). I have 1000 records in a file can someone help me how to do that. Thankyou all in advance.
"2008-07-15... (3 Replies)
I have an awk script to find the maximum value of the 2nd column of a 2 column datafile, but I need to find the top 5 maximum values of the 2nd column.
Here is the script that works for the maximum value.
awk 'BEGIN { subjectmax=$1 ; max=0} $2 >= max {subjectmax=$1 ; max=$2} END {print... (3 Replies)
Is there an awk script that can easily perform the following operation?
I have a data file that is in the format of
1944-12,5.6
1945-01,9.8
1945-02,6.7
1945-03,9.3
1945-04,5.9
1945-05,0.7
1945-06,0.0
1945-07,0.0
1945-08,0.0
1945-09,0.0
1945-10,0.2
1945-11,10.5
1945-12,22.3... (3 Replies)
Hi,
I have a requirement to search for a pattern in each line in a file and remove the in between words till the 3rd occurrence of double quote (").
Ex: CREATE TABLE "SCHEMANAME"."AMS_LTV_STATUS"
(Note: "SCHEMANAME" may changes for different schemas. Its not a fixed value)
I need to... (2 Replies)
Hi guyz i want to know nth position of character in string. For ex.
var="UK,TK,HK,IND,AUS"
now if we see 1st occurance of , is at 3 position, 2nd at 6,..4th at 13 position.
1st position we can find through INDEX, but what about 2nd,3rd and 4th or may be upto nth position. ?
In oracle we had... (2 Replies)
I have a requirement as below.
In one of my column, I have data which may or may not be separted with coma always. Now I need to validate the length of these text within the coma (if available) and if the length is more than 30 characters, I need to insert a coma either at 30 characters if its... (3 Replies)
Using Awk, how can I achieve the following?
I have set of record numbers, for which, I have to replace the nth field with some values, say spaces.
Eg:
Set of Records : 4,9,10,55,89,etc
I have to change the 8th field of all the above set of records to spaces (10 spaces).
Its a delimited... (1 Reply)
Discussion started by: deepakwins
1 Replies
10. Post Here to Contact Site Administrators and Moderators
I have Index Line and I tried to get the 9th character from the file and to check the character is "|" or not.
Shell Scripting.
Sample Index file.
"91799489|K8E|188.004.A.917994892.1099R.c.01.pdf|2013|10/15/2014|002|B|C|C"... (3 Replies)
Discussion started by: pavand
3 Replies
LEARN ABOUT DEBIAN
colorgccrc
COLORGCCRC(5) File Formats Manual COLORGCCRC(5)NAME
colorgccrc - configuration file for colorgcc
DESCRIPTION
A colorgccrc configuration file is used to configure the highlighting of the compiler output from colorgcc.
SYNTAX
Each line consists of a keyword designating a configuration variable. The keyword is followed by `:' and then one or several values
(depending on the keyword). Lines beginning with a hash mark `#' are comments.
CONFIGURATION VARIABLES
g++ | gcc | c++ | cc | g77 | gcj | gnat | gpc
Specifies the paths to the compilers. Takes one value; a path to the compiler.
nocolor
Specifies what terminal types colorization should be disabled on. Takes one or several values, separated by whitespace.
srcColor
Specifies the highlighting attributes source-code should be given. Takes one or several color attributes. See the section COLOR
ATTRIBUTES for more information.
introColor
Specifies the highlighting attributes for normal compiler output. Takes one or several color attributes. See the section COLOR
ATTRIBUTES for more information.
warningFileNameColor | errorFileNameColor
Specifies the highlighting attributes for the filename in a warning or an error, respectively. Takes one or several color
attributes. See the section COLOR ATTRIBUTES for more information.
warningNumberColor | errorNumberColor
Specifies the highlighting attributes for the line-number in a warning or an error, respectively. Takes one or several color
attributes. See the section COLOR ATTRIBUTES for more information.
warningMessageColor | errorMessageColor
Specifies the highlighting attributes for the message-text in a warning or an error, respectively. Takes one or several color
attributes. See the section COLOR ATTRIBUTES for more information.
COLOR ATTRIBUTES
The following attributes are valid for highlighting.
clear, reset
bold, underline, underscore, blink, reverse, concealed
black, red, green, yellow, blue, magenta, cyan, white
on_black, on_red, on_green, on_yellow, on_blue, on_magenta, on_cyan, on_white
SEE ALSO gcc(1), colorgcc(1)HISTORY
Jan 15 2003: Initial version of this manual-page.
REPORTING BUGS
Report bugs to <jmoyers@geeks.com>
AUTHORS
Jamie Moyers <jmoyers@geeks.com> is the author of colorgcc.
This manual page was written by Joe Wreschnig <piman@sacredchao.net>, and modified by David Weinehall <tao@debian.org>, for the Debian
GNU/Linux system (but may be used by others).
COPYRIGHT
Copyright (C) 2003 Jamie Moyers
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
Jan 15, 2003 COLORGCCRC(5)