09-28-2008
Using Grep Questions
Hello All,
1.)
I am searching for ".exe" in a text file
2.)
I need to search for a hexadecimal entree of at least four digits
Last edited by Omega1589; 09-29-2008 at 04:46 PM..
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi all,
My boss wants me to find out how often e-m users are accessing their account:confused:. The mail server keeps log of all logins. I want to use grep the 'usernames', but it should come out the moment it first encounters the username in the log. Can I do that? I want to avoid 10+ greps... (2 Replies)
Discussion started by: nitin
2 Replies
2. UNIX for Dummies Questions & Answers
Hello every one, I have read a little about SED and GREP but I do not know how to do this:
Using SED or GREP:
"reverse all three letter words"
"replace the last two digits in any string of digits by zeros (0)"
"remove lines that start and end with the same word"
and I have more like... (5 Replies)
Discussion started by: Lem2003
5 Replies
3. UNIX for Dummies Questions & Answers
I have the data file:
A
1
2
3
BBB
4
5
6
A
7
8
9
I want to grep "A" then-skip a line-then-add two sublines:
I my command:
grep +3 "A" datafile (8 Replies)
Discussion started by: bobo
8 Replies
4. UNIX for Dummies Questions & Answers
Hi,
Is it possible to display a specific number of lines starting from a line having a particular text using grep command?
e.g. I have a text file with the contents below:
AAA
BBB
CCC
DDD
EEE
FFF
I want to display 3 lines starting with the line having "BBB" to get the result below:... (11 Replies)
Discussion started by: stevefox
11 Replies
5. Shell Programming and Scripting
Hello All,
I have few of questions related to Grep given below:
1. Like Perl, is it possible in Grep to negate characters in square brackets. For example in Perl, if '^' is used inside '' then it acts as a negation characters. Can same be achieved through Grep's regular expression.
2. How... (9 Replies)
Discussion started by: paragkalra
9 Replies
6. Shell Programming and Scripting
Hi guys. I need to filter some values from a number of log files. One of the files is:
Interconnect Utilisation Results:
Achieved Maximum Number of Concurrent Connections: 17
Statistics for Average Number of Concurrent Connections:
Point Estimation: Confidence Interval: ... (2 Replies)
Discussion started by: Faaz0
2 Replies
7. UNIX for Dummies Questions & Answers
This was mistaken as homework in a different forum, but is not. These are questions that are close to what I am trying to do at work.
QUESTION1:
How do you grep only an exact string. I am using Solaris10 and do not have any GNU products installed.
Contents of car.txt
CAR1_KEY0
CAR1_KEY1... (1 Reply)
Discussion started by: thibodc
1 Replies
8. UNIX for Dummies Questions & Answers
I have different things that I was trying to do but am kind of struggling with this since I'm a Linux noob. The backround is that I have two files with student names in the same directory, and each file lists the student name, their major and their grade level. What is the most efficient way to... (6 Replies)
Discussion started by: tastybeer
6 Replies
9. Shell Programming and Scripting
Hi. I have a txt file. I need to make a copy of the lines which are beginning with a mobile phone number, or a fix phone number. I have to copy thoose lines in numbers.txt, after that i have to delete then from the originally file. In numbers.txt i need to write a prefix before each number. if the... (1 Reply)
Discussion started by: T720
1 Replies
10. Homework & Coursework Questions
1. The problem statement, all variables and given/known data:
So i'll probably get told off for this but I have a few problems and rather than clog up the whole forum I'll post them here. Please bare in mind I am a complete novice when it comes to all this and so if you help please treat me like a... (4 Replies)
Discussion started by: jamesb18
4 Replies
LEARN ABOUT REDHAT
printf
PRINTF(1) FSF PRINTF(1)
NAME
printf - format and print data
SYNOPSIS
printf FORMAT [ARGUMENT]...
printf OPTION
DESCRIPTION
NOTE: your shell may have its own version of printf which will supercede the version described here. Please refer to your shell's documen-
tation for details about the options it supports.
Print ARGUMENT(s) according to FORMAT.
--help display this help and exit
--version
output version information and exit
FORMAT controls the output as in C printf. Interpreted sequences are:
" double quote
NNN character with octal value NNN (0 to 3 digits)
\ backslash
a alert (BEL)
backspace
c produce no further output
f form feed
new line
carriage return
horizontal tab
v vertical tab
xNNN byte with hexadecimal value NNN (1 to 3 digits)
uNNNN character with hexadecimal value NNNN (4 digits)
UNNNNNNNN
character with hexadecimal value NNNNNNNN (8 digits)
%% a single %
%b ARGUMENT as a string with `' escapes interpreted
and all C format specifications ending with one of diouxXfeEgGcs, with ARGUMENTs converted to proper type first. Variable widths are han-
dled.
AUTHOR
Written by David MacKenzie.
REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>.
COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO
The full documentation for printf is maintained as a Texinfo manual. If the info and printf programs are properly installed at your site,
the command
info printf
should give you access to the complete manual.
GNU coreutils 4.5.3 February 2003 PRINTF(1)