Query Regarding Regular Expression

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Help with regular expression

Hi All We have a file with statements like below SELECT BLAH,BLAH,... FROM TABSCHEMA1.TABSCHEMA1 WITH UR SELECT BLAH,BLAH,... FROM TABSCHEMA2.TABSCHEMA2 WHERE BLAH=1 WITH UR . . . and so on We want the word Anything after FROM<SPACE> and stop when the word Encounter Space....

2. UNIX for Advanced & Expert Users

sed: -e expression #1, char 0: no previous regular expression

Hello All, I'm trying to extract the lines between two consecutive elements of an array from a file. My array looks like: problem_arr=(PRS111 PRS213 PRS234) j=0 while } ] do k=`expr $j + 1` sed -n "/${problem_arr}/,/${problem_arr}/p" problemid.txt ---some operation goes...

3. Shell Programming and Scripting

?* regular expression in sh

Hi, what ?* means in sh script? I know that ? is equivalent to at least one appearance of a preceding expression and * is equivalent to at least one appearance of preceding expression but I have difficulties with a way in which I should interpret following pattern: -?* I would expect that...

4. Programming

Perl: How to read from a file, do regular expression and then replace the found regular expression

Hi all, How am I read a file, find the match regular expression and overwrite to the same files. open DESTINATION_FILE, "<tmptravl.dat" or die "tmptravl.dat"; open NEW_DESTINATION_FILE, ">new_tmptravl.dat" or die "new_tmptravl.dat"; while (<DESTINATION_FILE>) { # print...

5. Shell Programming and Scripting

Integer expression expected: with regular expression

CA_RELEASE has a value of 6. I need to check if that this is a numeric value. if not error. source $CA_VERSION_DATA if * ] then echo "CA_RELESE $CA_RELEASE is invalid" exit -1 fi + source /etc/ncgl/ca_version_data ++ CA_PRODUCT_ID=samxts ++ CA_RELEASE=6 ++ CA_WEEK_NO=7 ++...

6. Linux

Regular expression to extract "y" from "abc/x.y.z" .... i need regular expression

Regular expression to extract "y" from "abc/x.y.z"

7. Shell Programming and Scripting

regular expression

Hello All! I have a file thats something like this: ( a grep output) /path/of/file/filename.abc.xyz.pqr:! Commented text /path/of/file/filename.abc.xyz: ! More Commented text I need to grep out those line from this file whose filename has ".abc" in the filename (anywhere in filename)...

8. Shell Programming and Scripting

Regular expression query in AWK

Hi, I have a string like this-->"After Executing service For 10 Request" in this string i need to extract "10". the contents of the string is variable and "10" appears before "For" and after "Request" i.e, in this format "For x Request" I need to extract the value of x. How to do this in AWK?...

9. Shell Programming and Scripting

Regular expression query in AWK

I have a varable(var1) in a AWK script that contain data in the following format - I need to extract timestamp,priority and log message.I can extract these by using split function but i don't want to use it, since i want to extract it in one go. I have some difficulties in doing it using...

10. Shell Programming and Scripting

Regular Expression + Aritmetical Expression

Is it possible to combine a regular expression with a aritmetical expression? For example, taking a 8-numbers caracter sequece and casting each output of a grep, comparing to a constant. THX!

LEARN ABOUT DEBIAN

ppmtosixel

ppmtosixel(1)						      General Commands Manual						     ppmtosixel(1)

NAME

       ppmtosixel - convert a portable pixmap into DEC sixel format

SYNOPSIS

       ppmtosixel [-raw] [-margin] [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as input.  Produces sixel commands (SIX) as output.	The output is formatted for color printing, e.g. for a DEC
       LJ250 color inkjet printer.

       If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled.  A printer control header and a color assignment table
       begin the SIX file.  Image data is written in a compressed format by default.  A printer control footer ends the image file.

OPTIONS

       -raw   If  specified,  each  pixel  will  be explicitly described in the image file.  If -raw is not specified, output will default to com-
	      pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands.  A raw file is often an order	of  magni-
	      tude larger than a compressed file and prints much slower.

       -margin
	      If  -margin  is not specified, the image will be start at the left margin (of the window, paper, or whatever).  If -margin is speci-
	      fied, a 1.5 inch left margin will offset the image.

PRINTING

       Generally, sixel files must reach the printer unfiltered.  Use the lpr -x option or cat filename > /dev/tty0?.

BUGS

       Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion.  If the original PPM maxval was
       greater	than  100,  rescaling  also reduces the image depth.  While the actual RGB values from the ppm file are more or less retained, the
       color palette of the LJ250 may not match the colors on your screen.  This seems to be a printer limitation.

SEE ALSO

       ppm(5)

AUTHOR

       Copyright (C) 1991 by Rick Vinci.

								   26 April 1991						     ppmtosixel(1)

Shell Programming and Scripting