Modifying the shell script to select pattern Post: 302934768

Sponsored Content

Top Forums Shell Programming and Scripting Modifying the shell script to select pattern Post 302934768 by DGPickett on Tuesday 10th of February 2015 12:34:50 PM

02-10-2015

Registered User

First, you want to chop off 3 dirs; cut, sed, awk or even just shell pattern chopping (${name#pattern}, ${name%%pattern} ) can do this.

Second, you want to add a line break before 'to200', and again, sed, awk or shell pattern chopping. See man bash look for %%:

Quote:

${parameter#word}
${parameter##word}
The word is expanded to produce a pattern just as in pathname expansion. If the
pattern matches the beginning of the value of parameter, then the result of the
expansion is the expanded value of parameter with the shortest matching pattern
(the ``#'' case) or the longest matching pattern (the ``##'' case) deleted. If
parameter is @ or *, the pattern removal operation is applied to each positional
parameter in turn, and the expansion is the resultant list. If parameter is an
array variable subscripted with @ or *, the pattern removal operation is applied to
each member of the array in turn, and the expansion is the resultant list.

${parameter%word}
${parameter%%word}
The word is expanded to produce a pattern just as in pathname expansion. If the
pattern matches a trailing portion of the expanded value of parameter, then the
result of the expansion is the expanded value of parameter with the shortest match-
ing pattern (the ``%'' case) or the longest matching pattern (the ``%%'' case)
deleted. If parameter is @ or *, the pattern removal operation is applied to each
positional parameter in turn, and the expansion is the resultant list. If parame-
ter is an array variable subscripted with @ or *, the pattern removal operation is
applied to each member of the array in turn, and the expansion is the resultant
list.

The sed/awk '.*' is always aggressive, but the pattern chop allows you to select aggressive or minimal wild card. I faintly recall MULTICS qedx or Waterloo FRED allowed you to select, too.

My mnemonic for remembering them is "#" is pound like 'pound on the nose", and '%' is like for a broker or artistliving off royalties, 'take my percentage at the end'.

This User Gave Thanks to DGPickett For This Post:

DGPickett

View Public Profile for DGPickett

Find all posts by DGPickett

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Modifying a csv file from Shell Script

Hi all, I have some script that creates a temp csv file. What I need to do is do some search and replace and modify the file from my shell script. I know the commands to open the file and then apply the reg ex but wasnt sure how I could do this from a script and modify the file? Any help...

2. Shell Programming and Scripting

using SELECT sql statement in shell script

Hi there I have a database on a remote box and i have been using shell script to insert data into it for example, i could have a script that did this SN=123456 n=server1 m=x4140 sql="UPDATE main SET hostname='$n',model='$m' WHERE serial='$SN';" echo $sql |/usr/sfw/bin/mysql -h...

3. UNIX for Dummies Questions & Answers

Modifying a shell script without using an editor

Hi all, I really wan't to know that how to edit a shell script with out using an editor.. Is there any command?

4. Shell Programming and Scripting

How to use select into command in shell script?

I need to get total number of rows in a table by using select count(*) from table and need to assign into a variable in shell script. I used the following script, it does return the number of rows but also with oracle headers, Please help me to eliminate this headers. Shell Script #!/bin/sh...

5. Shell Programming and Scripting

Select combination unique using shell script

Hi All, bash-3.00$ gzgrep -i '\ ExecuteThread:' /******/******/******/******/stdout.log.txt.gz <Jan 7, 2012 5:54:55 PM UTC> <Error> <WebLogicServer> <BEA-000337> < ExecuteThread: '414' for queue: 'weblogic.kernel.Default (self-tuning)' has been busy for "696" seconds working on the request...

6. Shell Programming and Scripting

Execution problem with shell script for modifying a user

#/bin/sh echo "enter the user name" read $username echo "Enter new home directory" read $newhd usermod -d $newhd $username ;; error while executing : enter the user name Rev Enter new home directory: /home/58745 usermod: option requires an argument -- 'd' Try `usermod --help' or...

7. Shell Programming and Scripting

Modifying contents of the file in shell script

Hello all, I have a Kconfig file that looks like something below ... ================================ menu "Application type" config GUI_TYPE_STANDARD bool "Standard Application" source "cfg/config/std.in" source...

8. Shell Programming and Scripting

How to print the output of a select query using shell script?

HI, I want to connect to database and fetch the count from a table. The sql query is as below : select count(*) from table_test where test_column='read'; How can I print the output of this statement using shell script. Thanks in advance.

9. Shell Programming and Scripting

Modifying/Adding in the DNS server entry using shell script

Dear Experts. I need to add/modify the entries in the DNS server and this has to be achieved using shell script and below is the requirement, could you please let me know if a shell script can be written for this task? 1. Log in to primary DNS server 2. Check /etc/named.conf if zone is...

10. Linux

How to execute a simple select script using a shell script?

Hi team, I have two select statements and need to run them using SYSDBA user select * from temp_temp_seg_usage; select segment_name, tablespace_name, bytes/ (1024*1024) UsedMb from dba_segments where segment_name='TEMP_TEMP_SEG_USAGE'; Need to run this using a shell script say named...

LEARN ABOUT OPENSOLARIS

shcomp

shcomp(1)							   User Commands							 shcomp(1)

NAME

       shcomp - compile a ksh93 shell script

SYNOPSIS

       shcomp [-nv] [infile [outfile]]

       shcomp -D [infile [outfile]]

DESCRIPTION

       If  the	-D  option  is not specified, shcomp takes a shell script, infile, and creates a binary format file, outfile, that ksh93 reads and
       executes with the same effect as the original script.

       Aliases are processed as the script is read. Alias definitions whose value requires variable expansion will not work correctly.

OPTIONS

       The following options are supported:

       -D	       Generate a list of strings that need to be placed in a message catalog for internationalization.
       --dictionary
		       With this option, all double quoted strings that are preceded by $ are printed, one literal  per  line.	A  literal  $"foo"
		       prints  "foo" in the output. These are the messages that need to be translated to locale specific versions for internation-
		       alization.

       -n	       Display warning messages for obsolete or non-conforming constructs.
       --noexec

       -v	       Display input from infile onto standard error as it reads it.
       --verbose

OPERANDS

       The following operands are supported:

       infile	  Specifies the name of the file that contains the shell script to be used as input.

		  If infile is omitted, the shell script is read from standard input.

       outfile	  Specifies the name of the output file.

		  If outfile is omitted, both modes write their results to standard output.

EXIT STATUS

       The following exit values are returned:

       0     Successful completion.

       >0    An error occurred.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |See below.		   |
       +-----------------------------+-----------------------------+

       The command-line interface and the system variables are Committed. The compiled shell code format is Private. The output of the	-D  option
       is Volatile.

SEE ALSO

       ksh93(1), attributes(5)

SunOS 5.11							    27 Jan 2009 							 shcomp(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Modifying a csv file from Shell Script

Discussion started by: not4google

2. Shell Programming and Scripting

using SELECT sql statement in shell script

Discussion started by: hcclnoodles

3. UNIX for Dummies Questions & Answers

Modifying a shell script without using an editor

Discussion started by: buddhi

4. Shell Programming and Scripting

How to use select into command in shell script?

Discussion started by: vel4ever