05-20-2011
How to grep a pattern having value greater than 123 in a file?
Hi,
I have a dynamically growing ascii file which has large data (both text and digits). I need to grep those lines having value greater than '123'. These numeric values may appear at anywhere in the line, hence I could not use awk to split to columns.
So, please help me with the grep regular expression pattern for this.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I have a set of .gz files. I need to grep a pattern and need to find out the file in which that pattern occurs. zgrep in not available in my server.Any other options available for searching a pattern without unzipping the .gz files. (2 Replies)
Discussion started by: rprajendran
2 Replies
2. Shell Programming and Scripting
Hi, is there any way in grep to grep for a certain number of characters? For example I have a list of customerIDs, I want to grep for all greater than 12 characters? (2 Replies)
Discussion started by: borderblaster
2 Replies
3. Shell Programming and Scripting
Hello all
Hoping someone would be kind enough to suggest a solution to a problem i have, and see if maybe i can even do this without a script.
Essentially i have a very large log file, and within it each line had a value called TTMT, and it records a variable number in the following way, so... (6 Replies)
Discussion started by: 1905
6 Replies
4. Shell Programming and Scripting
Hey guys, I'm fairly new at unix shell scripting and I have a quick question.
Quick overview I devolped a script where I generate a file ..and I want to grep any time greater than 30 minutes.
What i do is runa command to generates the below and puts it into a file:
I run
./ggsci << endit... (4 Replies)
Discussion started by: nomiezvr4
4 Replies
5. Shell Programming and Scripting
Hi All,
Need help on this
I have 2 files
one file file1 which has several entries as :
define service{
hostgroup_name !host1,!host5,!host6,.*
service_description check_nrpe
}
define service{
hostgroup_name !host2,!host4,!host6,.*
service_description check_opt
}
another... (2 Replies)
Discussion started by: namitai
2 Replies
6. UNIX for Dummies Questions & Answers
Hi ,
i have some files of specific pattern ...i need to look for files which are having size greater than zero and move those files to another directory..
Ex...
abc_0702,
abc_0709,
abc_782
abc_1234 ...etc
need to find out which is having the size >0 and move those to target directory..... (7 Replies)
Discussion started by: dssyadav
7 Replies
7. UNIX for Dummies Questions & Answers
I'm trying to grep lines where the digits at the end of each line are greater than digits. Tried this but it will only allow me to specify 2 digits. Any ideas would greatly be appreciated. grep -i '\<\{3,4,5\}\>' file
---------- Post updated at 05:58 PM ---------- Previous update was at 05:41... (1 Reply)
Discussion started by: jimmyf
1 Replies
8. Shell Programming and Scripting
Hi
I'm new to the forum, so I'd apologize for any error in the format of the post.
I'm trying to find a file content in another one using:
grep -w -f file1 file2
file1
GJA7
TSC
file 2
GJC1 GJA7
TSC1 TSC (11 Replies)
Discussion started by: flyfisherman
11 Replies
9. UNIX for Dummies Questions & Answers
Hi, This is my first post.
I have a korn shell script which outputs a select statment to a file. There is only one column and one row which contains a record count of the select statement.
The select statement looks something like this:
SELECT COUNT(some_field) AS "count_value"
... (2 Replies)
Discussion started by: MurdocUK
2 Replies
10. Shell Programming and Scripting
Hi ,
I have a file where i have modifed certain things compared to original file . The difference of the original file and modified file is as follows.
# diff mir_lex.c.modified mir_lex.c.orig
3209c3209
< if(yy_current_buffer -> yy_is_our_buffer == 0) {
---
>... (5 Replies)
Discussion started by: breezevinay
5 Replies
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)