find the last digits of a string Post: 302327776

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to check if a string has only digits

Hi guys, I am not very experienced in writing ksh scripts and I am trying to write a piece of code that indicates if a given string contains only digits and no alphabet (upper or lower case). If i write it my way it would turn out to have a lot of comparisons.. :eek: Thanks a lot in...

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I have a string like xxxxxx44. What's the best way to extract the digits (one or more) in a ksh script? Thanks

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I would like to search between two a string. I thought this would be easy. The is always at the beginning of a line. The code: gawk '/^/{d=$1},/searchstring/,/^(d+1)/' or gawk '/^/,/searchstring/,/^/' did not return the desired result. inputfile.txt 999 some text searchstring some...

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Hello all! I've looked all over the internet and this site and have come up a loss with an easy way to make a bash script to do what I want to do. I have a file with a naming convention as follows: 2012-01-18 string of words here 123.jpg 2012-01-18 string of words here 1234.jpg 2012-01-18...

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Using these strings as an example: <a onclick="doShowCHys=1;ShowWindowN(0,'/daman/man.php?asv4=145148&playTogether=True',960,540,943437);return false;" title=""> <a onclick="doShowCHys=1;ShowWindowN(0,'/daman/man.php?asv4=1451486&playTogether=True',960,540,94343);return false;" title=""> <a...

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Determine if first 2 digits of string match numbers

Trying to find out how to discover if the first 2 characters of a string are "22" Not sure how. I could use if ]; then echo "yes";fi But I think that will only grab the pattern 22 and not the first 2 digits.

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Extract n-digits from string in perl

Hello, I have a log file with logs such as 01/05/2017 10:23:41 : file.log.38: database error, MODE=SINGLE, LEVEL=critical, STATE: 01170255 (mode main how can i use perl to extract the 8-digit number below from the string 01170255 Thanks

LEARN ABOUT OSF1

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. UNIX for Dummies Questions & Answers

to check if a string has only digits

Discussion started by: lakshmikanth

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Extract digits at end of string

Discussion started by: offirc

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Ksh Checking if string has 2 characters and does not contain digits?

Discussion started by: developncode

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stripping out digits from a string with sed

Discussion started by: timmylita