I'm struggling with very very simple task but dont know where I'm going wrong.
Have the following file numbers.txt
Tried the following commands with single quote and double quote to print with min and max limits.
Only grep "[0-9]\{3,6\}" numb is working but max limit is ignored.
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! (2 Replies)
Hi All
I am using regular expressions to determine how to group certain data. I've included an example of the data below.
USD_SPTR_2Y_725.5_PUT_EUROPEAN_09Q1|USD||European|
CAD_NDX_10Yx1Y_5.5_PUT_EUROPEAN_09Q1|CAD||European|
The regular expressions I am using is as follows and this is... (5 Replies)
Hi ,
I have a file with "|" (pipe) as a delimeter. I am looking for the record count where 5th field is a number with 15 digit length only.
all the records with above requirement is valid rest all are invalid. I need count of valid records and invalid records.
Can anyone please help (9 Replies)
Hi,
i am java guy and new to unix.
I want to validate date pattern using Regex expression
here is the sample program i have written.
#!/bin/sh
checkDate="2010-04-09"
regex="\\d{4}-\\d{2}-\\d{2}\$"
echo $regex
if ]
then
echo "OK"
else
echo "not OK"
fi
But the ouput is... (2 Replies)
Hi,
I am new to scripting.
please help me in validating the user entered time Pattern
Here is the program
#!/bin/bash
validateTimeFormat()
{
checkTime=$1
timePattern="::"
if ]
then
echo "Valid time pattern"
return 1
else
echo "InValid time pattern"
return -1
fi
}
echo "Please... (2 Replies)
What would be the regular expression that can search for a Pattern, having 8 characters out of which atleast 1 digit, 1 lower case, 1 upper case letter and 1 special character must be there. But these can occur at any place randomly. Please help me out.
I'm using find $dir -name "*.txt" -exec... (0 Replies)
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
++... (3 Replies)
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... (1 Reply)
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... (11 Replies)
Hello ,
Could anyone help me to define the string in regular expression way .
Below is my string
\rtf1\ansi\deff0{\fonttbl{\f0\fswiss Helv;}{\f1\fnil MS Sans Serif;}}
{\colortbl ;\red0\green0\blue0;}
\viewkind4\uc1\pard\cf1\lang1033\f0\fs16
The string will always start as \rtf1 and... (6 Replies)
Discussion started by: Pratik4891
6 Replies
LEARN ABOUT REDHAT
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)