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UNIX for Dummies Questions & Answers
Need Help with Netpbm Commands
Post 302374681 by Deadwalk on Wednesday 25th of November 2009 08:12:38 AM
11-25-2009
Need Help with Netpbm Commands
Hello,
for school i have to write a makefile in unix which have to do the following:
-convert all .jpeg files to .png files
-with "all" its ment all in the same folder of the make file
-iam not allowed to use the "convert" command
-no loops allowed like "for" or something (hope i named that right..)
iam still a newb at unix and iam allready freakin out
so far i know that i have to use jpegtopng command but i dont know how to do it that the names of the output files are exactly as the input names. and i also dont know how to do it for all files in the same directory/folder where the make file is...
i realy hope anyone of u can help me out with this :S
Greetings, Deadwalk
PS: Sorry for that horrible english but that all ive got
for school i have to write a makefile in unix which have to do the following:
-convert all .jpeg files to .png files
-with "all" its ment all in the same folder of the make file
-iam not allowed to use the "convert" command
-no loops allowed like "for" or something (hope i named that right..)
iam still a newb at unix and iam allready freakin out
so far i know that i have to use jpegtopng command but i dont know how to do it that the names of the output files are exactly as the input names. and i also dont know how to do it for all files in the same directory/folder where the make file is...
i realy hope anyone of u can help me out with this :S
Greetings, Deadwalk
PS: Sorry for that horrible english but that all ive got
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rmf
RMF(1) [nmh-1.5] RMF(1) NAME
rmf - remove an nmh folder SYNOPSIS
rmf [+folder] [-interactive | -nointeractive] [-version] [-help] DESCRIPTION
Rmf removes all of the messages (files) within the specified (or default) folder, and then removes the folder (directory) itself. If there are any files within the folder which are not a part of nmh, they will not be removed, and an error will be produced. If the folder is given explicitly or the -nointeractive option is given, then the folder will be removed without confirmation. Otherwise, the user will be asked for confirmation. If rmf can't find the current folder, for some reason, the folder to be removed defaults to `+inbox' (unless overridden by user's profile entry "Inbox") with confirmation. If the folder being removed is a subfolder, the parent folder will become the new current folder, and rmf will produce a message telling the user this has happened. This provides an easy mechanism for selecting a set of messages, operating on the list, then removing the list and returning to the current folder from which the list was extracted. If rmf s used on a read-only folder, it will delete all the (private) sequences (i.e., "atr-seq-folder" entries) for this folder from your context without affecting the folder itself. Rmf irreversibly deletes messages that don't have other links, so use it with caution. FILES
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rmm(1) DEFAULTS
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Although intuitively one would suspect that rmf works recursively, it does not. Hence if you have a sub-folder within a folder, in order to rmf the parent, you must first rmf each of the children. MH.6.8 11 June 2012 RMF(1)