I'm trying to figure out how to build a small shell script that will find old .shtml files in every /tgp/ directory on the server and delete them if they are older than 10 days...
The structure of the paths are like this:
/home/domains/www.domain2.com/tgp/
/home/domains/www.domain3.com/tgp/... (1 Reply)
hi freinds,
i just learning shell programming. i usually work in bash shell, but when i need tcshell, i normally i/p chshell command and go there. but although i have installed all the neccessay patches for this shell my machine can not work in tshell. but it shows the shell to be present..... (0 Replies)
Hello all,
Any idea how to check whether a variable holding null value or not. if -z option works fine in bash, where as it is not working in sh.
bash-3.00$ sh
$ TEST=
$ if ; then
> echo "Null"
> else
> echo "Not null"
> fi
sh: test: 0403-004 Specify a parameter with this command.... (2 Replies)
Hi,
I'm using FreeBSD 6. I want to know which Shell I'm using. So I gave the command:
-sh-3.1$ ps -p $$
PID TTY TIME CMD
15547 pts/1 00:00:00 sh
Which shell is "sh"? Is it C Shell or Bourne Shell or Korn Shell?
Also, are Bourne & Korn shell one and the same or are... (4 Replies)
Had any one made the wildcard "*" or "?" work in tcp wrappers configure file hosts.allow and hosts.deny in AIX? It won't work for me no matter how hard I try.
I am trying to restrict the access of our ftp server and if I specify following in hosts.allow:
ftpd : host01.domain.com... (0 Replies)
I tried to use the wildcard '*' in my bash script, but I can not get it work. Here is a simple example (list file names in current directory):
ls ./*
does not work in my bash script. But it works if I use
ls ./
So is there any special syntax to use '*' wildcard in bash script (I tested the... (11 Replies)
Dear Friends,
I am trying to get a script in c-shell working but no way! I don't know why but on my mac was working and now on linux is not!
Basically the script should accept a root_file_name and work in batch on files. This is the script:
#!/bin/csh -fn
setenv IMAGIC_BATCH 1
... (3 Replies)
Dear All,
I have script.
Dest=""
IFS='
'
for translation in $(echo $MY_MAP)
do
t1=$(echo $translation | cut -d"=" -f1)
t2=$(echo $translation | cut -d"=" -f2| cut -d"," -f1)
if
then
Dest=$UNX/$u_product_path/$u_study_path/$UNXTR/$t2
break;
... (4 Replies)
Discussion started by: yadavricky
4 Replies
LEARN ABOUT DEBIAN
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)