dear all,
i want to count the lines of a flat(text) file using awk.i have tried with {print NR}
but its taking lot of time for a big file like 2GB file size.
so i want better efficiency...so can any body please help me with some other and better awk code?
Regards,
Pankaj
Did you try something similiar to this,
As pointed out by vgersh,
wc -l < filename should do!
Hi Friends
Please help me out to count number of lines in binary file. It gives some wrong(less) using wc -l. Is there any other way to count lines of binary file.
Thanks. (3 Replies)
Hi,
Im doing a script to find the number of lines included inside a file newly. These lines are in between #ifdef FLAG1 and #else or #endif or #else and #endif.
I tried like this,
awk '/#ifdef Flag1/,/#e/{print}' aa.c | wc -l
awk '/#ifndef Flag1/,/#endif/{print}' aa.c | awk... (6 Replies)
Dear Members,
I want to count the number of lines in a file; for that i am using the following command :
FILE_LINE_COUNT=`wc -l $INT_IN/$RAW_FILE_NAME`
if i do an echo on FILE_LINE_COUNT then i get
241 /home/data/testfile.txt
I don't want the directory path to be displayed. Variable... (1 Reply)
Hi Everyone,
1.txt
Mon 08 Feb 2010 12:30:44 AM MYT;1265560244;e164:0000116047275464;T;Central;0;
Mon 08 Feb 2010 12:30:46 AM MYT;1265560246;e164:0000116047275464;T;Central;0;
Mon 08 Feb 2010 12:30:48 AM MYT;1265560248;e164:0000116047275464;T;Central;0;
Mon 08 Feb 2010 12:30:50 AM... (1 Reply)
Guys I am having a problem with being able to do a count of entries in a file. What I am trying to get a count of the total number of members that are listed in the files. So I need to pull the number of the lines after members. I tried using sed but it only seems to count the first... (7 Replies)
I have a file that I need to merge with another like file. Normally I remove the trailer reocrd and merge the file and update the trailer record of the second file. I did a WC -l on the first file before I removed the trailer record, and again afterwards. The count came back the same. I opened the... (6 Replies)
Hi, I need some help with a script I'm trying to write. I have a log file containing references to a number of different webservices. I wish to write a script that will list the webservices with a count as to how many times they appear in the log.
An example of the log file content:
... (2 Replies)
I have a text file in which you need to identify the number of lines that looks like this:
awk '{x + +} END {print x}' filename
The problem is that I do not know how this data to any variable in which then need to continue to work in a cycle for ..
do not know someone help?
Sorry for my... (4 Replies)
Hello,
Currently I have:
FILE=/home/file.txt
if ;
then
echo "File $FILE exists"
else
echo "File $FILE does not exist"
fi
exit
I would like to make it such that if the file *does* exist, it performs a wc -l count of the file and then if the count is greater than 3 performs... (3 Replies)
Discussion started by: holyearth
3 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)