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Hi,

I have a string which is in the below format

"/abc/123/xyz/HI_I_AM_THE_FILE_12122012123456.TXT"

I want to extract the file name which is "HI_IAM_THE_FILE_12122012123456.TXT". the depth...

cat filename.dat | head -100 | tail -75 >> newfilename.dat

or

you can do by using awk also

awk 'NR==25,NR==100' filename.dat >> newfilename.dat

that is working !! thanks

hmmm

cut -c 1-2 filename.txt > newfile1.txt

cat newfile1.txt | while read line
do
sed '$line/${line}a/g'
done >> newfile.txt

paste newfile1.txt newfile.txt

I know this is crude way of...

Hi,

I have a file with 3 lines like

aaaabb
abcdef
wertyu

now i want to insert a new character "Q" in the 3rd position of every line of the file....

I found a way to do it but i felt it...

let us assume ur input is file1.txt

cat file1.txt | grep -v "Mac address" > file2.txt

this will create a new file file2.txt without lines containing "Mac address"

hope this will help you

hi vino,

I don't find any grep -o option. can anyone give me UNIX code as python is not available in our development server.

Thanks in advance

hi srikanth,

This gives me the number of fields in each line of my file but my requirement is different

for ex) let usa ssume my file like this

nasa isro nasa
nasa nasa isro
isro nasa nasa...

hi,
I have a file where i need to count the occurences of a string ex) 'welcome to unix forum'. can anybody help me out