If I am not wrong, the numbers have fixed positions. In the 3 example lines, the values are always the 4th-last. The next are the 3rd-last.
How should the output look like? Want all numbers together, or just 1 position on all lines per file?
As a start:
Btw. is the dual wielding barbarian berserker already taken by a player?
i have this text file name test.txt which contain :
aaaaa bbb
iiiiiiiiiiiii ccf
ddaaa ddd
and i need a script that can print out the line numbers using a while loop..
so when the script is run..it will have this:
1
2
3
any ideas? :) thanks guys (4 Replies)
hi, i have a large text file that I just want to extract the important
information from. It will be a random number of lines but between two specific
line numbers/markers.
I was thinking I could get the line number for the first marker:
Tablespace Percent Total Free
Then get the line... (11 Replies)
Hi one and all,
I'm working on a Bash script that is designed to calculate how much IP traffic has passed through a port to determine traffic volume over a given amount of time.
I've currently been able to use the netstat -s command coupled with grep to write to a file the total packets... (13 Replies)
Hello, i have started learning scripting with linux commands. So far I am having probelms with one task:
To make a script with from file with the text, prints even numbers used in that text.
maybe any could script that?
Thank You. (23 Replies)
How would I do this? How could i use <> symbols for numbers in the find/replace code below?
perl -pi -e 's/test/tst/'
OR is there a better way?
100 5000 2 432 4 2 33 4 5 6 65 300 301
needs to be:
100 300 2 300 4 2 33 4 5 6 65 300 300
also it might not always need spaces... i... (12 Replies)
hi dudes, I nee you kind assistance, I have to find the matched numbers from 2 text files and output of matched numbers should be in another text file..
I do have text files like this , for example
File 1
787
665*5-p
5454
545-p
445-p
5454*-p
File 2
5455
787
445-p
4356
2445
144
... (3 Replies)
Hi,
I am trying to extract lines from a text file given a text file containing line numbers to be extracted from the first file. How do I go about doing this? Thanks! (1 Reply)
Hello All,
This is a noob question. I tried searching for the answer but the answer found did not help me .
I have a file that can have duplicates.
100
200
300
400
100
150
the number 100 is duplicated twice. I want to find the duplicate along with the line number.
expected... (4 Replies)
Discussion started by: vatigers
4 Replies
LEARN ABOUT PLAN9
grep
GREP(1) General Commands Manual GREP(1)NAME
grep - search a file for a pattern
SYNOPSIS
grep [ option ... ] pattern [ file ... ]
DESCRIPTION
Grep searches the input files (standard input default) for lines (with newlines excluded) that match the pattern, a regular expression as
defined in regexp(6). Normally, each line matching the pattern is `selected', and each selected line is copied to the standard output.
The options are
-c Print only a count of matching lines.
-h Do not print file name tags (headers) with output lines.
-i Ignore alphabetic case distinctions. The implementation folds into lower case all letters in the pattern and input before interpre-
tation. Matched lines are printed in their original form.
-l (ell) Print the names of files with selected lines; don't print the lines.
-L Print the names of files with no selected lines; the converse of -l.
-n Mark each printed line with its line number counted in its file.
-s Produce no output, but return status.
-v Reverse: print lines that do not match the pattern.
Output lines are tagged by file name when there is more than one input file. (To force this tagging, include /dev/null as a file name
argument.)
Care should be taken when using the shell metacharacters $*[^|()= and newline in pattern; it is safest to enclose the entire expression in
single quotes '...'.
SOURCE
/sys/src/cmd/grep.c
SEE ALSO ed(1), awk(1), sed(1), sam(1), regexp(6)DIAGNOSTICS
Exit status is null if any lines are selected, or non-null when no lines are selected or an error occurs.
GREP(1)