hey guys, how do i replace only a line within a file without messing up the rest of the contents of the file?
see, if possible can you guys give me a straight forward way to do this. i dont want a complex command. what i mean is i know i can accomplish this by using sed, well, i think i can,... (3 Replies)
I have a problem in the following code ...
while read line
do
#Get Line Number
OLDLINE=`sed -n $Lineno $filename`
echo "Un Changed Line : "$OLDLINE
echo "Enter a New Pattern : "
read NewPattern <&1
echo "NewPattern :"$NewPattern
NEWLINE=`cat $filename | sed -n... (1 Reply)
Hi,
I know there are lots of threads on replacing text within files, usually using sed or awk. However, I find it hard to adapt examples that I found to my specific case. I am kind of new to UNIX and have hard times learning the syntax either for sed or awk so I would appreciate any help. Here's... (5 Replies)
Hi Masters ,
I have a file whose header is like
HDRCZECM8CZCM000000881 SVR00120100401160828+020020100401160828+0200CZK
There is a space between 1 and S ,my req is to chng the space to T
I tried echo `head -1 CDCZECM8CZCM000000881` | sed 's/ /T/'
it works ,but how can I modify in... (5 Replies)
Hi All,
I have a set of files named S5_SK1.chr01 S5_SK1.chr02 S5_SK1.chr03 ..... and the first line of these files is >SK1.chr01 >SK1.chr02 >SK1.chr03 ..... Can anyone suggest how I can change the first line of all these files with the filename itself? So my expected output for the first lines of... (14 Replies)
Hi All,
As mentioned in the title I have two text files and I would like to replace line number 5 of file #1 with line number 4 of file #2
e.g.
file 1
wqwert
4.4464002
3
319
286
369
46.320002
56.150002
45.100002
1
1
1
0.723 (12 Replies)
I have a file which has a list in it
pop
triangle
people
slow
fast
What I want to do is search this list and replace people with humans do the list looks like this:
pop
triangle
human
slow
fast
I think i use something like this....
if cat /list.txt | grep -q 'people' ; then (9 Replies)
Hi all,
I need to replace a line
export TZ=xxxxxxxx
with the line
export TZ=$1
Now, "xxxxxxxx" in the above line is some unknown string and $1 is a parameter. I want the content of $1 to be replaced with "xxxxxxxx".
Kindly help me how to do this in the shell scripting. (5 Replies)
Hi Guys,
I am having a set of date format files files where I am performing the below set of operations in the files . I Need to replace the last line value with specific date which is a pipe delimited file.
for egf1_20140101.txt
aa|aus|20140101|yy
bb|nz|20140101|yy
.
.... (19 Replies)
Discussion started by: rohit_shinez
19 Replies
LEARN ABOUT DEBIAN
dbix::password
Password(3pm) User Contributed Perl Documentation Password(3pm)NAME
DBIx::Password - Allows you to create a global password file for DB passwords
SYNOPSIS
use DBIx::Password;
my $dbh = DBIx::Password->connect($user);
my $dbh = DBIx::Password->connect_cached($user);
$dbh->getDriver;
DBIx::Password::getDriver($user);
DBIx::Password::checkVirtualUser($user);
DBIx::Password::clearConfig();
DBIx::Password::readConfig("$ENV{HOME}/.my.secret.file");
DESCRIPTION
Don't you hate keeping track of database passwords and such throughout your scripts? How about the problem of changing those passwords on a
mass scale? This module is one possible solution. It stores all your virtual users and data in /etc/dbix-password.conf. For each user you
need to specify the database module to use, the database connect string, the username and the password. You will have to give a name to
this virtual user. You can add as many as you like.
I would recommend that if you are only using this with web applications that you change the final permissions on this package after it is
installed in site_perl such that only the webserver can read it.
A method called getDriver has been added so that you can determine what driver is being used (handy for working out database indepence
issues).
If you want to find out if the virtual user is valid, you can call the class method checkVirtualUser(). It returns true(1) if the
username is valid, and zero if not.
Once your are done you can use the connect method (or the connect_cache method) that comes with DBIx-Password and just specify one of the
virtual users you defined while making the module.
BTW I learned the bless hack that is used from Apache::DBI so some credit should go to the authors of that module. This is a rewrite of
the module Tangent::DB that I did for slashcode.
If your program does not need the system-wide information stored in the /etc/dbix-password.conf file, you may use the clearConfig() and
readConfig() functions to get the data from another source. At any time, readConfig() may also be used to merge the data from another file
into the currently-loaded configuration.
Hope you enjoy it.
HOME
To find out more information look at: http://www.tangent.org/DBIx-Password/
AUTHOR
Brian Aker, brian@tangent.org
SEE ALSO perl(1). DBI(3).
perl v5.10.0 2009-05-09 Password(3pm)