Good morning,
Novice scripter in Unix here, and I've run into and sed task I can't quite wrap my head around. I'm pulling my hair out fast enough as it is and thought I would go to the knowledge bank.
I have a sorted file that I'm trying to trim down by deleting any line whose first few... (2 Replies)
file1 contains the following data
sssssssssss
firstline
secondline pppppppppp
ssssssssss
Using sed comamnd i am trying to delete firtsline secondline.
so, output should be
sssssssssss
pppppppppp
ssssssssss
I tried in the following the way, but it is not working.
sed ... (9 Replies)
Hi,
I have a log file that I need to monitor as it's being written to, and I want to exclude certain strings from the output. At the moment I'm using ...
tail -f LogFileName_`date +%d`.log | egrep -v "First String To Exclude | 2nd string | 3rd string" ...which works OK - but now I need to... (1 Reply)
Dear All,
I want to add two lines in single string.
Example:
String1: God Bless You.
String2: Thank You.
Now i want to store these two above lines into a single string(str) and when i will echo it, it should be like
> echo $str
God Bless You.
Thank You.
Please help me.
Thanks in... (1 Reply)
Can someone tell me how I can do this?
e.g:
Say file1.txt contains:
today is monday
the 22 of
NOVEMBER
2010
and file2.txt contains:
the
11th
month
of
How do i replace the word NOVEMBER with (5 Replies)
Can someone tell me how I can do this?
e.g:
a=$(echo -e wert trewt ertert ertert ertert erttert
erterte
rterter
tertertert
ert)
How do i replace the STRING with $a?
I try this:
sed -i 's/STRING/'"$a"'/g' filename.ext
but this don' t work (2 Replies)
I have a file that looks like this:
John Smith
http://www.profile1.com
http://www.profile2.com
http://www.profile3.com
Marc Olsen
http://www.profile4.com
http://www.profile5.com
http://www.profile6.com
http://www.profile7.com
Lynne Doe
http://www.profile8.com
http://www.profile9.com... (3 Replies)
So I have a file in the form
>
akdfvcnciejcndmdjfk
>
kdjkkkifjeeeeelfjfuf
>
fjfhchdejhfhfhfhfhfhf
>
skdkdhfhvnvncnccm
and I would like it to come out in the form
>1
akdfvcnciejcndmdjfk
>2
kdjkkkifjeeeeelfjfuf
>3
fjfhchdejhfhfhfhfhfhf (3 Replies)
Grep and Sed (replace string in patterned lines)
Hi all,
I want to grep for "PATTERN" and only if "PATTERN" is in a line, this line shall be used as replacement input e.g. for SED.
I don't get it running in one line.
NOT RUNNING - just first idea... I don't know how to redirect grep... (2 Replies)
Hi !
I want to search a string in all lines with sed. If that string is there, i want to look for an other string in the next line.If that string is there i want to put an other line under it.
eg:
aaa
bbb
ccc
ddd
cat bla.txt | sed -e '/aaa/a\' -e ' \!!!'
in the upper case, i would... (6 Replies)
Discussion started by: fugitivus
6 Replies
LEARN ABOUT LINUX
debconf-set-selections
DEBCONF-SET-SELECTIONS(1) Debconf DEBCONF-SET-SELECTIONS(1)NAME
debconf-set-selections - insert new default values into the debconf database
SYNOPSIS
debconf-set-selections file
debconf-get-selections | ssh newhost debconf-set-selections
DESCRIPTION
debconf-set-selections can be used to pre-seed the debconf database with answers, or to change answers in the database. Each question will
be marked as seen to prevent debconf from asking the question interactively.
Reads from a file if a filename is given, otherwise from stdin.
WARNING
Only use this command to seed debconf values for packages that will be or are installed. Otherwise you can end up with values in the
database for uninstalled packages that will not go away, or with worse problems involving shared values. It is recommended that this only
be used to seed the database if the originating machine has an identical install.
DATA FORMAT
The data is a series of lines. Lines beginning with a # character are comments. Blank lines are ignored. All other lines set the value of
one question, and should contain four values, each separated by one character of whitespace. The first value is the name of the package
that owns the question. The second is the name of the question, the third value is the type of this question, and the fourth value (through
the end of the line) is the value to use for the answer of the question.
Alternatively, the third value can be "seen"; then the preseed line only controls whether the question is marked as seen in debconf's
database. Note that preseeding a question's value defaults to marking that question as seen, so to override the default value without
marking a question seen, you need two lines.
Lines can be continued to the next line by ending them with a "" character.
EXAMPLES
# Force debconf priority to critical.
debconf debconf/priority select critical
# Override default frontend to readline, but allow user to select.
debconf debconf/frontend select readline
debconf debconf/frontend seen false
OPTIONS --verbose, -v
verbose output
--checkonly, -c
only check the input file format, do not save changes to database
SEE ALSO debconf-get-selections(1) (available in the debconf-utils package)
AUTHOR
Petter Reinholdtsen <pere@hungry.com>
2011-06-22 DEBCONF-SET-SELECTIONS(1)