Sponsored Content
Full Discussion: Combining multiple greps
Top Forums UNIX for Beginners Questions & Answers Combining multiple greps Post 303031194 by Xubuntu56 on Saturday 23rd of February 2019 08:34:24 AM
Old 02-23-2019
Is there a "gray area" between grepping and globbing?
A moment ago I just read that "The moral of the story is that grep never uses globbing." (see link)
I also thought I had it straight in my mind that globbing is for filenames, and grepping is for searching text within a file.
Yet my first post above asks for help grepping filenames!

Globbing and Regex: So Similar, So Different | Linux Journal
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Combining multiple lines

I am fairly new to scripting. But I have been able to extract and format all of my information required into one file. My issue is that one character is on a separate line. I need to be able to add the character to the previous line. ex. abcdefghi 1 bcdefghij 3 cdefghijk 4 need to... (4 Replies)
Discussion started by: DUST
4 Replies

2. Shell Programming and Scripting

Sed: Combining Multiple Lines into one

Before I ask my actual question, is it going to be a problem that I want to run this process on a 15 Gig file that is ~140 million rows? What I'm trying to do: I have a file that looks like Color,Type,Count,Day Yellow,Full 5 Tuesday Green,Half 6 Wednesday Purple,Half 8 Tuesday ...... (3 Replies)
Discussion started by: goldfish
3 Replies

3. Shell Programming and Scripting

Combining multiple commands

Hi Guys, I am looking to optimze these 5 SSH lines to a single SSH to get my machine to not hang! lol! cat hosts.lst | xargs -n1 -t -i echo 'home/util/timeout 6 0 ssh -q {} top -b > util/{}.top &' >> r_query_info cat hosts.lst | xargs -n1 -t -i echo 'home/util/timeout 6 0 ssh -q {} uname -r... (5 Replies)
Discussion started by: wick3dsunny
5 Replies

4. Shell Programming and Scripting

Combining multiple files into one with the same name/different extension

I've been trying to find information in regard to creating a script that will generate HTML files. I currently have a series of files that contain code I need to surround with a <textarea> tag for easy viewing. I have about a thousand files that contain code, one file that contains the HTML code up... (10 Replies)
Discussion started by: 12o
10 Replies

5. Shell Programming and Scripting

Combining multiple variables into new variable

Hello, I am a new joiner to the forum, and have what i hope is a simple question, however I can't seem to find the answer so maybe it is not available within bash scripting. I intend to use the below script to archive files from multiple directories at once by using a loop, and a variable (n)... (10 Replies)
Discussion started by: dring
10 Replies

6. Shell Programming and Scripting

combining multiple sed statements

I need to run a cronjob that will monitor a directory for files with a certain extension, when one appears I then need to run the below scripts How do I go about combining the following sed statements into one script? and also retain the original filename.? sed 's/71502FSC1206/\n&/g' # add a... (2 Replies)
Discussion started by: firefox2k2
2 Replies

7. Shell Programming and Scripting

Bash Scipting (New); Run multiple greps > multiple files

Hi everyone, I'm new to the forums, as you can probably tell... I'm also pretty new to scripting and writing any type of code. I needed to know exactly how I can grep for multiple strings, in files located in one directory, but I need each string to output to a separate file. So I'd... (19 Replies)
Discussion started by: LDHB2012
19 Replies

8. Shell Programming and Scripting

Combining multiple files

I have 2 files. each having 3 coloums 1st field date as 20130322 2nd field time as 05:55 3rd field numberic value File 2 has entries missing for some date time. FILE1 20130322 05:35 2219 20130322 05:40 1809 20130322 05:45 1617 20130322 05:50 ... (2 Replies)
Discussion started by: sandeepkmehra
2 Replies

9. Shell Programming and Scripting

Combining multiple seds into one awk

i'm trying to optimize my script. i have a lot of instances where i'm doing something like this: echo $blah | sed 's~ ~|~g' | sed 's-_space_- -g' | sed 's-_LP_-(-g' | sed 's-_RP_-)-g' obviously, this is very inefficient. i know i can combine into one sed command with something this, using... (7 Replies)
Discussion started by: SkySmart
7 Replies

10. UNIX for Beginners Questions & Answers

Combining multiple files into one

Hello Everyone, I have 4 different files (one column in each) that I'm trying to combine into 1 file with four columns. Having issues trying to get the columns to format properly. I have tried the following: paste file1 file2 file3 file4 | column -s $'\t' -t > results.txt paste file1 file2... (1 Reply)
Discussion started by: malk71
1 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 08:52 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy