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Newest file changed
Post 302424857 by petel1 on Wednesday 26th of May 2010 12:09:22 PM
05-26-2010
Newest file changed
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
The program should search all files in current directory and it's subdirectories and list out the newest file by the date(last changed). Argument is a directory!
the input is: newest /usr/etc
and the output should look like this(with the subdirectories included):
/usr/etc/httpd/httpd Oct 25 12:16
This task is giving me a headache, please help
!
2. Relevant commands, code, scripts, algorithms:
ls -lt, cut, grep,...
3. The attempts at a solution (include all code and scripts):
i'm not sure in which direction to go with this one, but i think
i should list all files by time and then cut out the date and time and then
grep the first one
#!/bin/bash
newest()
{
ls -lt (R?) | cut -d" " -f6,7 | grep...
}
newest /usr/etc
exit
4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):
University of Ljubljana, Ljubljana, Slovenia, Janez Novak, ID63709
Note: Without school/professor/course information, you will be banned if you post here! You must complete the entire template (not just parts of it).
1. The problem statement, all variables and given/known data:
The program should search all files in current directory and it's subdirectories and list out the newest file by the date(last changed). Argument is a directory!
the input is: newest /usr/etc
and the output should look like this(with the subdirectories included):
/usr/etc/httpd/httpd Oct 25 12:16
This task is giving me a headache, please help
!2. Relevant commands, code, scripts, algorithms:
ls -lt, cut, grep,...
3. The attempts at a solution (include all code and scripts):
i'm not sure in which direction to go with this one, but i think
i should list all files by time and then cut out the date and time and then
grep the first one
#!/bin/bash
newest()
{
ls -lt (R?) | cut -d" " -f6,7 | grep...
}
newest /usr/etc
exit
4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):
University of Ljubljana, Ljubljana, Slovenia, Janez Novak, ID63709
Note: Without school/professor/course information, you will be banned if you post here! You must complete the entire template (not just parts of it).
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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)