Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: sed / grep question
Top Forums Shell Programming and Scripting sed / grep question Post 100050 by hemangjani on Thursday 23rd of February 2006 08:55:47 AM
Old 02-23-2006
Tools sed / grep question
Hello,

I am new to shell scripting.

I have a input file: Few lines of the input file has the following.

/a0012/abcd12/abcd12
/a0003/xyzab1/lmno123
/a0006/pqrst1/abcde12

In my output file, I only need to get anything that is between the first and second '/' of each line: exampple:
a0012 a0003 a0006

Using grep I have got the above three lines from a huge input file. But not sure how to go forward with my problem.

Please help.

thanks
Hemang
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

grep & sed question

I'm trying to write a bash script to perform a tedious task, but I have no experience and hardly any knowledge so I've been having a rough time with it. I'm on Mac OS X, and I want a script to do the following: I have a directory that has about 200 sudirectories. In each of these directories,... (1 Reply)
Discussion started by: der Kopf
1 Replies

2. Shell Programming and Scripting

question on sed grep awk from variable

i am still confusing on how to use sed, grep and awk if the input is not a file but a variable. such as: a="hello world" b="how are you" c="best wish to you" d="222,333,444" what if i want to check which variable $a,$b,$c,$d have contain "you" what if i want to replace the word "you"... (9 Replies)
Discussion started by: 3Gmobile
9 Replies

3. Shell Programming and Scripting

Question on Grep!

Hi all, I am relatively new to Unix... Pls help me with the following : is there an option ion grep to find the first and last occurence of a pattern in a file? if not how else can this be accomplished? Cheers, Bourne. (5 Replies)
Discussion started by: bourne
5 Replies

4. Shell Programming and Scripting

Sed Question 1. (Don't quite know how to use sed! Thanks)

Write a sed script to extract the year, rank, and stock for the most recent 10 years available in the file top10_mktval.csv, and output in the following format: ------------------------------ YEAR |RANK| STOCK ------------------------------ 2007 | 1 | Exxon... (1 Reply)
Discussion started by: beibeiatNY
1 Replies

5. UNIX for Dummies Questions & Answers

grep question

how can you create a script that would show the words you grep for as so grep -i WORD file.name This is where the WORD is. ^^^^ the ^ should be the same number of letters and directly or nearly under the word in question. thanks (1 Reply)
Discussion started by: farmerjack86
1 Replies

6. Shell Programming and Scripting

General question about the relationship between KSH and sed/grep/awk etc

Greetings all, Unix rookie here, just diving into ksh scripting for the first time. My question may seem confusing but please bear with me: If I'm understanding everything I'm reading properly, it seems like the ksh language itself doesn't have a lot of string manipulation functions of... (2 Replies)
Discussion started by: DalTXColtsFan
2 Replies

7. UNIX for Dummies Questions & Answers

sed/grep string replace question

Hi all, I know this question has probably been answered before, but I am struggling with this problem, even after googling a million pages. In a file named rdmt.conf I need a single character replaced, the number in the line below CUR_OC4J_ID=1 It will always appear after... (3 Replies)
Discussion started by: Mike AAA
3 Replies

8. Shell Programming and Scripting

grep question

Hello, Is there a way in grep to remember patterns? For eg: int a,b,c,d,a; If a variable is declared twice, like in the previous example, I should be able to print only those lines. Is there a way to print only the lines where the variable name occurs more than once, using grep... (1 Reply)
Discussion started by: prasanna1157
1 Replies

9. Shell Programming and Scripting

Question grep and sed

hi everybody i have this script and it work's if i use a single variable in grep, but when i put $searchterm_ the script stops work i have a problem too in sed, because i don't know how i can search and replace more than one item, in this case is >>> $searchterm/$replaceterm and... (4 Replies)
Discussion started by: felito
4 Replies

10. Shell Programming and Scripting

Grep / awk /sed question

Hi All, I have a file with following sample data. I am also attaching the file. (Est) (Est) Jobs Sch Workstation Job Stream SchedTime State Pr Start Elapse # OK Lim POOL #ACR_BILLING 0005 08/15 ... (2 Replies)
Discussion started by: Kevin Tivoli
2 Replies

LEARN ABOUT OPENSOLARIS

fgrep

fgrep(1)							   User Commands							  fgrep(1)

NAME

       fgrep - search a file for a fixed-character string

SYNOPSIS

       /usr/bin/fgrep [-bchilnsvx] -e pattern_list [file...]

       /usr/bin/fgrep [-bchilnsvx] -f file [file...]

       /usr/bin/fgrep [-bchilnsvx] pattern [file...]

       /usr/xpg4/bin/fgrep [-bchilnqsvx] -e pattern_list [-f file]
	    [file...]

       /usr/xpg4/bin/fgrep [-bchilnqsvx] [-e pattern_list] -f file
	    [file...]

       /usr/xpg4/bin/fgrep [-bchilnqsvx] 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 (a').

       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 for both /usr/bin/fgrep and /usr/xpg4/bin/fgrep:

       -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.

   /usr/xpg4/bin/fgrep
       The following options are supported for /usr/xpg4/bin/fgrep only:

       -q    Quiet.  Does  not	write  anything  to  the standard output, regardless of matching lines. Exits with zero status if an input line is
	     selected.

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 5.11							    24 Mar 2006 							  fgrep(1)
All times are GMT -4. The time now is 02:21 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy