Sponsored Content
Top Forums Shell Programming and Scripting Grep from multiple patterns multiple file multiple output Post 302870017 by Diya123 on Thursday 31st of October 2013 07:29:53 PM
Old 10-31-2013
Grep from multiple patterns multiple file multiple output

Hi,

I want to grep multiple patterns from multiple files and save to multiple outputs. As of now its outputting all to the same file when I use this command.

Input : 108 files to check for 390 patterns to check for. output I need to 108 files with the searched patterns.

Xargs -I {} grep *.txt < patterns.txt >output.txt

I want to have 108 output files for the 108 input files with the 390 search pattern. How can I acheive it?

Thanks,
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

grep for multiple patterns

I want to get a list of all the files in the current directory that have two patterns. I can do first grep of one pattern and then with the output do the grep of the second pattern. if the output of 1st pattern search results in many files, it is very difficult to do a grep of the 2nd pattern for... (1 Reply)
Discussion started by: tselvanin
1 Replies

2. Shell Programming and Scripting

Grep multiple patterns

Hi, Can we grep multiple patterns in UNIX. for example: cat /x/y/oratab | grep -i "pattern1|pattern2" .... etc I require the syntax for multiple patterns. | is not working as I explained in example. Malay (4 Replies)
Discussion started by: malaymaru
4 Replies

3. Shell Programming and Scripting

Grep for Multiple patterns

Hi All, I have a file. I need to find multiple patterns in a row and need those rows to divert to new file. I tried using grep -e / -E / -F options as given in man. But its not working. ==> cat testgrep.txt william,fernandes,xxxxx mark,morsov,yyyy yy=,xx= yyyy=,xxxx== ==>... (7 Replies)
Discussion started by: WillImm123
7 Replies

4. Shell Programming and Scripting

Find multiple patterns on multiple lines and concatenate output

I'm trying to parse COBOL code to combine variables into one string. I have two variable names that get literals moved into them and I'd like to use sed, awk, or similar to find these lines and combine the variables into the final component. These variable names are always VAR1 and VAR2. For... (8 Replies)
Discussion started by: wilg0005
8 Replies

5. Shell Programming and Scripting

grep for multiple patterns

I have a file with many rows. I want to grep for multiple patterns from the file. For eg: XX=123|YY=222|ZZ=566 AA=123|EE=222|GG=566 FF=123|RR=222|GG=566 DD=123|RR=222|GG=566 I want the lines which has both XX and ZZ. I know I can get it like this. grep XX file | grep YY But... (10 Replies)
Discussion started by: tene
10 Replies

6. UNIX for Dummies Questions & Answers

grep command to find multiple strings in multiple lines in a file.

I want to search files (basically .cc files) in /xx folder and subfolders. Those files (*.cc files) must contain #include "header.h" AND x() function. I am writing it another way to make it clear, I wanna list of *.cc files that have 'header.h' & 'x()'. They must have two strings, header.h... (2 Replies)
Discussion started by: ritikaSharma
2 Replies

7. Shell Programming and Scripting

Search multiple patterns in multiple files

Hi, I have to write one script that has to search a list of numbers in certain zipped files. For eg. one file file1.txt contains the numbers. File1.txt contains 5,00,000 numbers and I have to search each number in zipped files(The number of zipped files are around 1000 each file is 5 MB) I have... (10 Replies)
Discussion started by: vsachan
10 Replies

8. Shell Programming and Scripting

Grep and replace multiple strings in a file with multiple filenames in a file

Hi, I have a file containing list of strings like i: Pink Yellow Green and I have file having list of file names in a directory j : a b c d Where j contains of a ,b,c,d are as follows a: Pink (3 Replies)
Discussion started by: madabhg
3 Replies

9. Shell Programming and Scripting

How to use grep with multiple patterns?

I am trying to grep a variable with multiple lines with multiple patterns below is the pattern list in a variable called "grouplst", each pattern is speerated by "|" grouplst="example1|example2|example3|example4|example5|example6|example7" I need to use the patterns above to grep a... (2 Replies)
Discussion started by: ajetangay
2 Replies

10. UNIX for Beginners Questions & Answers

Grep multiple patterns(file) and replace whole line

I am able to grep multiple patterns which stored in a files. However, how could we replace the whole line with either the pattern or new string? For example: pattern_file: *Info in the () is not part of the pattern file. They are the intended name to replace the whole line after the pattern... (5 Replies)
Discussion started by: wxboo
5 Replies
fgrep(1)							   User Commands							  fgrep(1)

NAME
fgrep - search a file for a fixed-character string SYNOPSIS
/usr/bin/fgrep [-bchilnsvx] [-e pattern_list] [-f pattern-file] [pattern] [file...] /usr/xpg4/bin/fgrep [-bchilnsvx] [-e pattern_list] [-f pattern-file] [pattern] [file...] DESCRIPTION
The fgrep (fast grep) utility searches files for a character string and prints all lines that contain that string. fgrep is different from grep(1) and from egrep(1) because it searches for a string, instead of searching for a pattern that matches an expression. fgrep uses a fast and compact algorithm. The characters $, *, [, ^, |, (, ), and are interpreted literally by fgrep, that is, fgrep does not recognize full regular expressions as does egrep. These characters have special meaning to the shell. Therefore, to be safe, enclose the entire string within single quotes ('). If no files are specified, fgrep assumes standard input. Normally, each line that is found is copied to the standard output. The file name is printed before each line that is found if there is more than one input file. OPTIONS
The following options are supported: -b Precedes each line by the block number on which the line was found. This can be useful in locating block numbers by con- text. The first block is 0. -c Prints only a count of the lines that contain the pattern. -e pattern_list Searches for a string in pattern-list. This is useful when the string begins with a -. -f pattern-file Takes the list of patterns from pattern-file. -h Suppresses printing of files when searching multiple files. -i Ignores upper/lower case distinction during comparisons. -l Prints the names of files with matching lines once, separated by new-lines. Does not repeat the names of files when the pattern is found more than once. -n Precedes each line by its line number in the file. The first line is 1. -s Works silently, that is, displays nothing except error messages. This is useful for checking the error status. -v Prints all lines except those that contain the pattern. -x Prints only lines that are matched entirely. OPERANDS
The following operands are supported: file Specifies a path name of a file to be searched for the patterns. If no file operands are specified, the standard input will be used. /usr/bin/fgrep pattern Specifies a pattern to be used during the search for input. /usr/xpg4/bin/fgrep pattern Specifies one or more patterns to be used during the search for input. This operand is treated as if it were specified as -e pattern_list. USAGE
See largefile(5) for the description of the behavior of fgrep when encountering files greater than or equal to 2 Gbyte ( 2**31 bytes). ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of fgrep: LC_COLLATE, LC_CTYPE, LC_MES- SAGES, and NLSPATH. EXIT STATUS
The following exit values are returned: 0 If any matches are found 1 If no matches are found 2 For syntax errors or inaccessible files, even if matches were found. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: /usr/bin/fgrep +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ /usr/xpg4/bin/fgrep +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWxcu4 | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ SEE ALSO
ed(1), egrep(1), grep(1), sed(1), sh(1), attributes(5), environ(5), largefile(5), XPG4(5) NOTES
Ideally, there should be only one grep command, but there is not a single algorithm that spans a wide enough range of space-time tradeoffs. Lines are limited only by the size of the available virtual memory. /usr/xpg4/bin/fgrep The /usr/xpg4/bin/fgrep utility is identical to /usr/xpg4/bin/grep -F (see grep(1)). Portable applications should use /usr/xpg4/bin/grep -F. SunOS 5.10 4 Oct 2002 fgrep(1)
All times are GMT -4. The time now is 11:31 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy