Hi!
I have thousands of sub-directories, and hundreds of thousands of files in them. What is the fast way to find out which files are older than a certain date? Is the "find" command the fastest? Or is there some other way?
Right now I have a C script that traverses through and checks... (5 Replies)
Hi,
I am trying to write a script that will move all the files from source directory structure(multiple levels might exist) to destination directory structure. If a sub directory in source doesnot exist in destination then I have to skip and goto next level. I also need to delete the files in... (1 Reply)
Here is my problem (it seems I've a lot of problems nowadays).
I have several folders:
runner.20070830.12.45.12
runner.20070830.12.45.15
runner.20070830.12.45.17
runner.20070830.12.45.20
runner.20070830.12.45.45
runner.20070830.12.45.55
Each catalog contains some html-files.
I... (3 Replies)
I have written this code, and according to my research it SHOULD be going down the list until it is finished, but I am getting blank feedback. Nothing is being output as far as I can tell.
#!/bin/sh
while echo Enter to start traversing
read enter
do
read list <&3
echo $list
done
any... (2 Replies)
Hi,
I need to check a flatfile for various parameters like length of the record, format of record, any tab character present in the record etc.,
for checking presence of tab character, i'm trying to use the following code and i'm not sure if the same is right. Pls Help.
nawk '{print... (1 Reply)
Hi All,
My UNIX Version is:
OS Name Release Version
AIX appma538 3 5
I want to find certain files with some criterias under the given path. At the same time i want to find the files which resides under the given directory, but normal find traverse to its sub-directories... (4 Replies)
hi
I have a directory structure like
Parent
Parent/child1/
Parent/child2/
Parent/child3/ and the each main directory contains
Parent/child1/file1.txt, Parent/child1/fil2.zip .......
Parent/child2/file1.txt,Parent/child/fil2.zip ......
Now i want to traverse to each and want to... (1 Reply)
So, I want to read line-by-line a text file with unknown number of files....
So:
a=1
b=1
while ; do
b=`sed -n '$ap' test`
a=`expr $a + 1`
$here do something with b etc
done
the problem is that sed does not seem to recognise the $a, even when trying
sed -n ' $a p'
So, I cannot read... (3 Replies)
I wish to traverse the latest to the oldest directory based on its timestamp.
ls -ltr
drwxr-x--- 3 admin bel 1024 Jan 22 02:29 sys
drwxr-x--- 2 admin bel 2048 Jan 22 02:30 admin
drwxr-x--- 10 admin bel 24576 Jan 23 21:31 bin
For the above i need to cd first to... (2 Replies)
Hi all,
Require help in completing a shell script.
i do have a total of 90 directories where in we have different sub-directories and one of the sub directory named logs
I need to go inside the logs subdirectory and check if a particular log is present or not.
for example below is the... (3 Replies)
Discussion started by: bhaskar t
3 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)