Extracting substring from string Post: 302412923

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

sed, grep, awk, regex -- extracting a matched substring from a file/string

Ok, I'm stumped and can't seem to find relevant info. (I'm not even sure, I might have asked something similar before.): I'm trying to use shell scripting/UNIX commands to extract URLs from a fairly large web page, with a view to ultimately wrapping this in PHP with exec() and including the...

2. Shell Programming and Scripting

Extracting a substring starting from last occurance of a string/character

Hi All, This is Ram. I'm new to this forum & new to shell scripts as well. I've a requirement in which I want to extract a substring from a given string based on last occurance of a character. for eg. I have a string of a file name with absolute path like...

3. Shell Programming and Scripting

extracting substring from a file name

hi i need to name a file with a substring of a another file name. i.e. if the old filename is abc.txt , the new filename should be abc_1.txt i should get the substring of the file name and then name the new one please let me know how to do it

4. Shell Programming and Scripting

Extracting a substring from a string in unix

Hi, I would like to extract a substring from a string in unix. eg: ./checkfile.sh -- i need only checkfile.sh from this string. Could someone help me out in this... Regards Arun

5. Shell Programming and Scripting

Extracting substring

Hi, I have string in variable like '/u/dolfin/in/DOLFIN.PRL_100.OIB.TLU.001.D20110520.T040010' and i want to conevrt this string into only "DOLFIN.PRL_100.OIB.TLU.001.D20110520.T040010" (i.e file name). Is there any command to extracting string in some part ?(rather than whole path)? ...

6. Shell Programming and Scripting

Need help in extracting the substring in UNIX

Hi all, I need to extract the "abcdef" from the below string Digital_abcdef_20130103.txt.gz The length of the "abcdef" will be changing but it will be always after the word Digital_ and before the second underscore help in this regard is highly appreciated

7. Shell Programming and Scripting

Help on extracting a substring from the input string

Hi, I am new to Unix. I am trying to extract a substring from an input string: Ex - input string: deploy_v11_9_1 i want to extract and store the value v11_9_1 from the input string in a new variable. I am using following command in my shell script file: echo "Enter the folder name u...

8. Shell Programming and Scripting

Extracting a substring from Line

Hi All I have a line which is as below 1234567 Gagan Paswani zz23432 1000000000 1000000000 ASTHEYXX-RTUC zz23432 I need to extract the first occurence of zz23432 which will have the reg expression as {2}{5} Could you please assist as to how I can extract this...

9. Shell Programming and Scripting

Extracting substring from variable

Hi All, I'm facing issue wherein I have 2 character string like 'CR' and 'DR' and I want to extract just 1st character but am unable to do it. I tried below options but they are returning me 2nd character only, var="CR" echo ${var:1} returns just "R" echo ${var:0} returns "CR" ...

10. Shell Programming and Scripting

Extracting substring within string between 2 token within the string

Hello. First best wishes for everybody. here is the input file ("$INPUT1") contents : BASH_FUNC_message_begin_script%%=() { local -a L_ARRAY; BASH_FUNC_message_debug%%=() { local -a L_ARRAY; BASH_FUNC_message_end_script%%=() { local -a L_ARRAY; BASH_FUNC_message_error%%=() { local...

LEARN ABOUT FREEBSD

ppmtopgm

ppmtopgm(1)                                                   General Commands Manual                                                  ppmtopgm(1)

NAME

       ppmtopgm - convert a portable pixmap into a portable graymap

SYNOPSIS

       ppmtopgm [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as  input.  Produces a portable graymap as output.  The output is a "black and white" rendering of the original
       image, as in a black and white photograph.  The quantization formula used is .299 r + .587 g + .114 b.

       Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any  ppm  program  can
       read  pgm  (and  pbm  ) files automatically.  pgmtoppm is for colorizing a pgm file.  Also, see ppmtorgb3 for a different way of converting
       color to gray.  And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate  the  original
       colors, not necessarily a way that looks like a black and white photograph.

QUOTE

       Cold-hearted orb that rules the night
       Removes the colors from our sight
       Red is gray, and yellow white
       But we decide which is right
       And which is a quantization error.

SEE ALSO

       pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

                                                                   10 April 2000                                                       ppmtopgm(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

sed, grep, awk, regex -- extracting a matched substring from a file/string

Discussion started by: ropers

2. Shell Programming and Scripting

Extracting a substring starting from last occurance of a string/character

Discussion started by: krramkumar

3. Shell Programming and Scripting

extracting substring from a file name

Discussion started by: adityamahi

4. Shell Programming and Scripting

Extracting a substring from a string in unix

Discussion started by: arunkumarmc