Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: shell script to format file based on specific patterns
Top Forums Shell Programming and Scripting shell script to format file based on specific patterns Post 302326644 by joyan321 on Thursday 18th of June 2009 10:41:56 AM
Old 06-18-2009
Quote:
Originally Posted by bwhitehd
Yes and No. Can you provide a sample of the input file?

From what I understand so far, a script reads in each line of an input file, then writes to an output file based on the if conditions. Will all 3 cases be within the same script? Will the output be written to the same file and combined in some way or different files? Do you have a preference in language? (bash, perl, ...)

psuedo code for case 1:
Code:
# assuming inputfile format of "value1 value2"
while read -u inputfile var1 var2
do
  if condition1; then
    parm1=a
    parm2=b
    parm3=c
    if condition2; then
      parm3=d
      parm4=e
    fi
    for num in {1..4}
    do
      printf "cond1=%s|cond2%s|parm%s=%s\n" $cond1 $cond2 $num ${parm${num}} >> outputfile
    done
fi

Probably my question is not clear. Here is what I want to do. I want to parse a file with if then....end if blocks. I want to have the if condition added in front of the statements which are within the if..end if block e.g.

in the simplest form

if cond1 then
statement1
statement2
end if

So I want a new file of the form:
cond1 | statement1
cond1 | statement2

So, now if we have a nested if...end if block
if cond1 then
if cond2 then
statement1
statement2
end if
end if

So the new file should have:

cond1|cond2|statement1
cond1|cond2|statement2.

Did it explain the problem scenario ? Is it possible using korn shell ?
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

script to edit strings based on patterns

Hello All, Here is the file which I want to edit. The script should look for DB2 and if found then delete all lines related to DB2 connection string. Is there way this can be done using script ? DB1 = (DESCRIPTION = (SDU = 32768 (enable = broken) (ADDRESS = (PROTOCOL =... (2 Replies)
Discussion started by: deepakc_in
2 Replies

2. Shell Programming and Scripting

Splitting a file based on two patterns

Hi there, I've an input file as follows: *START 1001 a1 1002 a2 1003 a3 1004 a4 *END *START 1001 b1 1002 b2 1004 b4 *END *START 1001 c1 1004 c4 *END (6 Replies)
Discussion started by: kbirde
6 Replies

3. Shell Programming and Scripting

segregate the file based on matching patterns

print 'test' SETUSER 'dbo' go create proc abc as /Some code here/ go SETUSER go print 'test1' SETUSER 'dbo' go Create Procedure xyz as /some code here/ go SETUSER go print 'test2' SETUSER 'dbo' (2 Replies)
Discussion started by: mad_man12
2 Replies

4. Shell Programming and Scripting

Assigning a specific format to a specific column in a text file using awk and printf

Hi, I have the following text file: 8 T1mapping_flip02 ok 128 108 30 1 665000-000008-000001.dcm 9 T1mapping_flip05 ok 128 108 30 1 665000-000009-000001.dcm 10 T1mapping_flip10 ok 128 108 30 1 665000-000010-000001.dcm 11 T1mapping_flip15 ok 128 108 30... (2 Replies)
Discussion started by: goodbenito
2 Replies

5. UNIX for Dummies Questions & Answers

Locating and Extracting Specific Patterns from a file

Hi all, 1. I have a file that is getting continously refreshed (appended) I want to grep all the strings containing substring of the type abcdf123@aaa.xxx.yyy.zzz:portnumber: where, before @, any letters or numbers combination, after @, IP address then symbol : then port... (4 Replies)
Discussion started by: kokoras
4 Replies

6. Shell Programming and Scripting

script to arrange file in specific format

Hi All, I am new to forum, I am looking to arrange a file in specific format but unable to get the formula to do it, already googled for the same, but didnt find the answer :(. hope to get help here :o:o:o:o:o I have to files : $ cat Dev_List2 0685 0686 0687 0688 0689 068A 068B 068C... (2 Replies)
Discussion started by: prasan_Aix
2 Replies

7. Shell Programming and Scripting

Bash shell script not working-picking segment patterns from a file

Hi All, I have to pick particular segments from a file and I have prepared below shell script.But its not working and I am not able to find out whats the issue.could you guys pls help? Sample file: TS3*1451575*12*20151231*4*482.44 NM1*QC*1*CUTLER*BETTY DTM*472*20150808... (4 Replies)
Discussion started by: Venkata Prasad
4 Replies

8. UNIX for Dummies Questions & Answers

File merging based on column patterns

Hello :) I am in this situation: Input: two tab-delimited files, `File1` and `File2`. `File2` (`$2`) has to be parsed by patterns found in `File1` (`$1`). Expected output: tab-delimited file, `File3`. `File3` has to contain the same rows as `File2`, plus the corresponding value in... (5 Replies)
Discussion started by: dovah
5 Replies

9. UNIX for Beginners Questions & Answers

Using grep to select specific patterns in text file?

How do I use grep to select words that start with I or O, end in box, and contain at least one letter in between them? the text file mailinfo.txt contains Inbox the Inbox Is a match box Doesn't match INBOX Outbox Outbox1 InbOX Ibox I box If the command works correctly it... (4 Replies)
Discussion started by: steezuschrist96
4 Replies

10. UNIX for Beginners Questions & Answers

Linux/Shell script - How to compare 2 arrays based on patterns and get the differences

I have FILE 1 (This file has all master columns/headers) A|B|C|D|E|F|G|H|STATUS FILE 2 A|C|F|I|OFF_STATUS 3|4|5|4|Y 6|7|8|5|Y Below command give me all headers of FILE 2 into array2.txt file paste <(head -1 FILE2.txt | tr '|' '\n')>array2.txt So I would like to compare... (2 Replies)
Discussion started by: jmadhams
2 Replies

LEARN ABOUT DEBIAN

tca_correct

TCA_CORRECT(1)							       HUGIN							    TCA_CORRECT(1)

NAME

       tca_correct - Calculate transverse chromatic aberration

SYNOPSIS

       tca_correct [options] inputfile

       <inputfile> is the base name of 4 image files:

       <inputfile>
	   Colour file to compute TCA parameters

       red_<inputfile>
	   Red channel of <inputfile>

       green_<inputfile>
	   Green channel of <inputfile>

       blue_<inputfile>
	   Blue channel of <inputfile>

       The channel images must be colour images with 3 identical channels.  If any of -R, -G, or -B is given, this file name is used instead of
       the derived name.

       Output: commandline arguments for fulla

DESCRIPTION

       Generates fulla command-line parameters for correction of transverse chromatic aberration (TCA) from sample photos. Ideal sample photos
       would have a lot of contrast over the entire image area, little saturated colour and no blown highlights.

OPTIONS

       -h  Display help

       -l  input file is PTO file instead of image

       -m method
	   optimization method (0 normal, 1 newfit)

       -o optvars
	   string of variables to optimize ("abcvde")

       -r  Reset values (this will zero a,b,c,d,e params and set v to 10) makes sense only with -l option

       -s <scale>
	   Scale for corner detection

       -n <number>
	   number of points per grid cell (default: 10)

       -g <number>
	   divide image in <number>x<number> grid cells (default: 10)

       -t num
	   Remove all control points with an error higher than num pixels (default: 1.5)

       -v  Verbose

       -w filename
	   write PTO file

       -R <r>
	   Use this file as red channel

       -G <g>
	   Use this file as green channel

       -B <b>
	   Use this file as blue channel

AUTHORS

       Written by Pablo d'Angelo and others.

"Version: 2011.4.0"						    2011-12-02							    TCA_CORRECT(1)
All times are GMT -4. The time now is 06:18 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy