Multiplying lines of file that contain certain letter by value
I am trying to remove the last letter in a file and then multiply each line (which contained this letter) by 500. This is what I have:
This removes the A but then I can not multiply the lines that had the A with 500.
I was able to pass the file through a variable - var
and it will find the A, but I am not sure how to multiply the lines that had the A by 500. I don't want any of the other lines multiplied.
Does someone have a suggestion?
This is what I need:
1. find lines with A and delete the A - which is always at the end of file
2. then multiply those lines only by 500
3. The rest of the lines that don't contain the A should not be multiplied.
Last edited by Scrutinizer; 04-06-2015 at 02:21 PM..
Reason: Additional code tags for data sample
Good afternoon all,
I want to ask how to change some letter in my file with other letter in spesific line
eg.
data.txt
1
1
1
0
0
0
0
for example i want to change the 4th line with character 1.
How could I do it by SED or AWK.
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Write a program which asks user to enter a string and that string saves in a .txt file. After the file has been saved your program must count how many time letter 'a' has been reapeated ?
Use fstream, string, and cctype libraries to make your jobe easier.
I wrote following code
#include... (1 Reply)
Hi,
I have lets say 10 files , I need to process them one by one.
So I need a command to get one file name at a time to process it into a variable
Example
Files
P1111.dat
P3344.dat
S344.dat
...
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the title is self explanatory
I assume awk and sed existence to do the job but i'm really not good in pattern space comprehension to make it so
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ls n*
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D 2342135
B 214236
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V lskjrghaklsr
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E aslkgjlkasg
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i am writing csh script
i have one dat file containing following data.like this.
08FD3 03A26 000FA0 FFFF0 BBA0F 00000 00000
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how it is possible.
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