12-19-2013
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
How will you list only the empty lines in a file (using grep) (1 Reply)
Discussion started by: JosephGerard
1 Replies
2. UNIX for Dummies Questions & Answers
Hi,
I want to list filenames instead of lines when i search in compresed files for a string.
#gzcat *.gz | grep -l 12345
gives me:
<stdin>
Anyone got a solution on this problem? (2 Replies)
Discussion started by: HugoH
2 Replies
3. Shell Programming and Scripting
Hi-
I am trying to search a large file with a number of different search terms that are listed one per line in 3 different files. Most importantly I need to be able to do a case insensitive search.
I have tried just using egrep -f but it doesn't seam to be able to handle the -i option when... (3 Replies)
Discussion started by: dougzilla
3 Replies
4. Shell Programming and Scripting
Hello,
I'm interested in finding all occurrences of the terms in file1 in file2, which are both csv files. I can do this with a loop but I'm interested in knowing if I can also do it with the help of xargs and grep. What I have tried:
cat file1 | xargs grep file2
The problem is that... (15 Replies)
Discussion started by: eon
15 Replies
5. UNIX for Dummies Questions & Answers
Hi All !
As a dummy, I try to search for multiple string of characters contained in 2 types of list.
Not clear? No it's not.
Example:
I have a tab-delimited file called "inventory" with 2 columns that looks like that:
#ref #year,color
xrt3 2000,blue
gf5 2000,red,green,yellow... (4 Replies)
Discussion started by: lucasvs
4 Replies
6. Shell Programming and Scripting
Hi all,
I'll like to search a list of tems in a huge file and then output each of the terms to individual files. I know I can use grep -f list main.file to search them but how can I split the output into individual files? Thank you. (6 Replies)
Discussion started by: ivpz
6 Replies
7. Shell Programming and Scripting
Hi Friends,
I'm a great fan of this forum... it has helped me tone my skills in shell scripting. I have a challenge here, which I'm sure you guys would help me in achieving...
File A has a list of job ids and I need to compare this with the File B (*.log) and File C (extend *.log) and copy... (6 Replies)
Discussion started by: asnandhakumar
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8. Shell Programming and Scripting
Hi I would appreciate your help with this.
I have a output file from a command. It is broken based on initial of the users. Exmaple of iitials MN & SS. Under each section there is information pertaining to the user however each section can have different number of lines. MY challenge is to ... (5 Replies)
Discussion started by: mnassiri
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9. UNIX for Dummies Questions & Answers
I have a flat file that looks like this, let's call it Chromosome_9.txt:
FT /Gene_Name="Guanyl-Acetylase 9"
FT /Gene_Number"36952"
FT /Gene_Name="Endoplasmic Luciferase"
FT /Gene_Number"36953"
FT ... (4 Replies)
Discussion started by: Twinklefingers
4 Replies
10. Shell Programming and Scripting
I am searching for an exact match on a value read from another file to lookup an email address in another file. The file being checked is called "contacts" and it has Act #, email address, and contact person.
1693;abc1693@yahoo.comt;Tommy D
6423;abc6423@yahoo.comt;Jim Doran... (2 Replies)
Discussion started by: ziggy6
2 Replies
GREP(1) General Commands Manual GREP(1)
NAME
grep - search a file for lines containing a given pattern
SYNOPSIS
grep [-elnsv] pattern [file] ...
OPTIONS
-e -e pattern is the same as pattern
-c Print a count of lines matched
-i Ignore case
-l Print file names, no lines
-n Print line numbers
-s Status only, no printed output
-v Select lines that do not match
EXAMPLES
grep mouse file # Find lines in file containing mouse
grep [0-9] file # Print lines containing a digit
DESCRIPTION
Grep searches one or more files (by default, stdin) and selects out all the lines that match the pattern. All the regular expressions
accepted by ed and mined are allowed. In addition, + can be used instead of * to mean 1 or more occurrences, ? can be used to mean 0 or 1
occurrences, and | can be used between two regular expressions to mean either one of them. Parentheses can be used for grouping. If a
match is found, exit status 0 is returned. If no match is found, exit status 1 is returned. If an error is detected, exit status 2 is
returned.
SEE ALSO
cgrep(1), fgrep(1), sed(1), awk(9).
GREP(1)