UNIX for Dummies Questions & Answers

how can i list all files in my home directory that have a 4 digit id number, the line number where the id is located and the id itself not printing the entire line?

Hi
Please post a sample input and output file which will make us understand better.

Guru.

try this if it helps you..It prints all 4 digit numbers if irrespective its id or not...

Code:

egrep -Hon "[0-9][0-9][0-9][0-9]" /home/user

This works on linux...if your OS is missing some of the above options..we need to find alternative..

-Raja

Raj,
thanks for the effort buddy.
unfortunately there is no output on the screen despite the fact that some files do have
4 digit numbers.
doesn't work.

---------- Post updated at 11:39 PM ---------- Previous update was at 11:36 PM ----------

guruprasad,
when i am in my home directory after i do cd ~, i have files in my home directory that contain numbers that are 4 digits long.
all i am trying to do i list the files that have 4 digit long numbers, what line they are on within the file and what are the numbers themselves, all this without outputting out the entire line.

---------- Post updated at 11:39 PM ---------- Previous update was at 11:39 PM ----------

i am a beginner user, using putty.

Hi,
Which is your OS ? That script did work for me on Linux

Code:

>>egrep -Hon "[0-9][0-9][0-9][0-9]" *
id-1:4:2345
id-2:3:3467
id-2:5:7856
id-2:7:8923
log:1:2010
log:2:1982
log:2:2005
log:7:0186
log:10:0186
prf.pl:1:1230
prf.pl:1:4444
prf.pl:1:0000
ttt:2:2222
ttt:2:2230

-Raja

so sorry, by ID i did not mean unix network id.
i meant id as in class number or a 10 digit phone number.
how to display a patter of number within a file?

but anyways, i have putty installed on my windows xp and that command gave no output.

---------- Post updated at 11:51 PM ---------- Previous update was at 11:45 PM ----------

hi,
forgot to put the *.
now, the problem is that it is giving 5, 6, 7 digit numbers highliighting only the first 5 which is not what i wanted.

---------- Post updated 08-11-10 at 12:10 AM ---------- Previous update was 08-10-10 at 11:51 PM ----------

Raja,
it's working. my apologies.
thank you so much buddy.