First of all this is my first post here. Thank you in advance for your help.
What I am trying to do is the following. I have a text file where each field of each row is separated by a tabulator.
Looks like this:
First what I do is find the last row which starts with ATOM and save the field value of the 6th column in this row:
Then I want to search for a value I define in 6th column and replace this value by another value. This should be done until I reach the last row which starts with ATOM. Can you somehow use AWK or SED to search specifically for the row? I am new to shell scripting so sorry if the question is too trivial.
Thanks for help,
Max
---------- Post updated at 06:41 PM ---------- Previous update was at 06:18 PM ----------
Sorry the fields are not separated by tabs it is:
I am interested in the row 23 - 26 (Residue sequence number)
Hi, I am trying something like this: Let's say I have a file called File1 with contents:
x=-0.3
y=2.1
z=9.0
I have another file, File2, with contents:
xx=
yy=
zz=
(nothing after "="). What I want to do is get the value of x in File1 and set it to xx in File2, i.e., xx=-0.3. And the... (3 Replies)
script is as below
v_process_run=5
typeset -i p_cnt=0
pdata=/home/proc_data.log
while
do
# execute script in background
dummy_test.sh "a1" "a2" &
p_cnt=$p_cnt+1
echo "data : $p_cnt : Y" >> $pdata
done
file created with following data in... (1 Reply)
I have a text file with following content (3 lines)
filename : output.txt
first line:12/12/2008
second line:12/12/2008
third line:Y
I would like to know how we can replace 'Y' with 'N' in the 3rd line keeping 1st and 2nd lines same as what it was before.
I tried using cat output.txt... (4 Replies)
Hi all,
I have a requirement where i have to search data between strings 'SELECT' and ';' and replace this text as "SELECT.....;" so that i can export this extracted string into a excel cell.
Please suggest on this. (5 Replies)
hello all
greeting for the day
i have a text file as the following
text.xml
abcd<FIELD>123.456</FIELD>efgh
i need to replace the value between <FIELD> and </FIELD> by using awk command.
please throw some light on this.
thank you very very much
Erik (5 Replies)
how to replace the 3rd colum? Each line begins similarly, but they all ends variously.
XX YY 03 variable text here
XX YY 03 more variable text here
XX YY 03 even more variable text here really long setence
XX YY 03 variable numbers also appear 03 11. 123 456
XX YY 03 the occasional comma,... (4 Replies)
Hi There...
I need to serach and replace a strings in a text file.
My file has; books.amazon='Let me read' and the output needed is
books.amazon=NONFOUND
pls if anybody know this can be done in script sed or awk.. i have a list of different strings to be repced by NONFOUND.... (7 Replies)
Hello, I am using awk to match text in a tab separated field and am able to do so when matching the exact word. My problem is that I would like to match any sequence of text in the tab-separated field without having to match it all. Any help will be appreciated. Please see the code below.
awk... (3 Replies)
Hi,
I have gigabytes of text files that I need to search for "&" and replace with "&". Is there a way to do this efficiently (like sed command)?
Hope you could help.
Thanks. (17 Replies)
Hello,
I'm trying the solve the following problem.
I have a file which I intend to use as a csv called master.csv
The columns are separated by commas.
I want to change the text on a specific row in either column 3,4,5 or 6 from xxx to yyy depending upon if column 1 matches a specified pattern.... (3 Replies)