Re: [gentoo-user] Simple command line stuff
On Tue, 2005-10-11 at 00:25 -0700, Drew Tomlinson wrote:
Oh, and another thought. The find command can do this for you as
well, IIRC.
find . -type f -iname '*.wav' -exec command {} {}.foo \;
is the syntax, IIRC. Note the \ that exists to escape the
semicolon, therefore telling find to end processing.
find . -type f -iname '*.wav' |while read LIST; do command ${LIST}
${LIST/old/new} ; done
is another possibility.Adding limiters to find can prevent it from
recursing too deeply.
//Spider
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Re: [gentoo-user] Simple command line stuff
On Sun, 9 Oct 2005 19:06:53 -0700, Mark Knecht wrote: I don't have a single book on Linux. (Amazing...) Can someone recommend a simple book on command line stuff, or better yet a good web site on this topic? In addition to the resources already mentioned, there is an easy introduction to the command line at http://www.linuxcommand.org/ For instance, I wanted to run a specific command on every file in a directory which will create a new file, so I need to do commandfile1.wavfile1-convert.wav for f in *.wav; do command $f $(basename '$f' .wav)-convert.wav; done I need to take each name, create a new name to build the actual command that gets run and then do that for every file in the directory, or even in a hierarchy of directories. This works for a single directory, to recurse you'd need something like find. find somedir -name '*.wav' | while read f; do \ command $f $(dirname '$f')/$(basename '$f' .wav)-convert.wav; \ done -- Neil Bothwick Acute sufferer of B5 deprivation syndrome; Owner of redundant television . pgp3ILj6DlzCZ.pgp Description: PGP signature
Re: [gentoo-user] Simple command line stuff
On Sun, 2005-10-09 at 19:06 -0700, Mark Knecht wrote:
Hi,
I don't have a single book on Linux. (Amazing...) Can someone
recommend a simple book on command line stuff, or better yet a good
web site on this topic?
For instance, I wanted to run a specific command on every file in a
directory which will create a new file, so I need to do
commandfile1.wavfile1-convert.wav
I need to take each name, create a new name to build the actual
command that gets run and then do that for every file in the
directory, or even in a hierarchy of directories.
Thanks,
Mark
For bash / zsh and other advanced(?-) shells:
for f in *.wav; do command $f ${f/.wav/-convert.wav};done
The are there to prevent files with spaces in them (evil!) from
becoming too annoying and appearing as multiple commandline arguments.
//Spider
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Re: [gentoo-user] Simple command line stuff
On 10/10/05, Spider (D.m.D. Lj.) [EMAIL PROTECTED] wrote:
On Sun, 2005-10-09 at 19:06 -0700, Mark Knecht wrote:
Hi,
I don't have a single book on Linux. (Amazing...) Can someone
recommend a simple book on command line stuff, or better yet a good
web site on this topic?
For instance, I wanted to run a specific command on every file in a
directory which will create a new file, so I need to do
commandfile1.wavfile1-convert.wav
I need to take each name, create a new name to build the actual
command that gets run and then do that for every file in the
directory, or even in a hierarchy of directories.
Thanks,
Mark
For bash / zsh and other advanced(?-) shells:
for f in *.wav; do command $f ${f/.wav/-convert.wav};done
The are there to prevent files with spaces in them (evil!) from
becoming too annoying and appearing as multiple commandline arguments.
//Spider
Thanks to all for the great answers and pointers. I appreciate it very much.
Cheers,
Mark
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[gentoo-user] Simple command line stuff
Hi, I don't have a single book on Linux. (Amazing...) Can someone recommend a simple book on command line stuff, or better yet a good web site on this topic? For instance, I wanted to run a specific command on every file in a directory which will create a new file, so I need to do commandfile1.wavfile1-convert.wav I need to take each name, create a new name to build the actual command that gets run and then do that for every file in the directory, or even in a hierarchy of directories. Thanks, Mark -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Simple command line stuff
Mark Knecht ([EMAIL PROTECTED]) scribbled:
Hi,
I don't have a single book on Linux. (Amazing...) Can someone
recommend a simple book on command line stuff, or better yet a good
web site on this topic?
Sorry, I picked up most of it from fiddling around, but on to your
problem...
For instance, I wanted to run a specific command on every file in a
directory which will create a new file, so I need to do
commandfile1.wavfile1-convert.wav
I need to take each name, create a new name to build the actual
command that gets run and then do that for every file in the
directory, or even in a hierarchy of directories.
# for file in `ls *.wav`
do
newname=`echo ${file} | sed -e s/\.wav$/-convert.wav/`
command -i ${file} -o ${newname}
done
chug...chug...chug
and it's done. But this will only work on files in one subdirectory.
For recursive operations, replace the first line with this:
# for file in `find . -type f -iname *.wav -print`
hth,
jason.
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Re: [gentoo-user] Simple command line stuff
There is a online, downloadable Advanced Bash at http://www.tldp.org/LDP/abs/html/ Which is well worth it. I printed it out and refer to it. There are others that I found with a search for Advanced Bash but I haven't tried them. On Sun, 9 Oct 2005, Mark Knecht wrote: Hi, I don't have a single book on Linux. (Amazing...) Can someone recommend a simple book on command line stuff, or better yet a good web site on this topic? For instance, I wanted to run a specific command on every file in a directory which will create a new file, so I need to do commandfile1.wavfile1-convert.wav I need to take each name, create a new name to build the actual command that gets run and then do that for every file in the directory, or even in a hierarchy of directories. Thanks, Mark -- Brett I. Holcomb [EMAIL PROTECTED] Registered Linux User #188143 Remove R777 to email -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Simple command line stuff
On Sun, 2005-10-09 at 19:06 -0700, Mark Knecht wrote: Hi, I don't have a single book on Linux. (Amazing...) Can someone recommend a simple book on command line stuff, or better yet a good web site on this topic? For instance, I wanted to run a specific command on every file in a directory which will create a new file, so I need to do commandfile1.wavfile1-convert.wav I need to take each name, create a new name to build the actual command that gets run and then do that for every file in the directory, or even in a hierarchy of directories. Thanks, Mark If you want THE book on command line stuff, I would highly recommend the book UNIX Power Tools published by O'Reilly. It basically goes over every common UNIX command line tool and covers the common/useful tasks you might want to do with it. It's a very thick book, but don't be intimidated by its size,you can read just the sections you need. It's basically a recipe book. As far as a website, a decent tutorial for shell scripting is available at: http://www.tldp.org/LDP/abs/html/ -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Simple command line stuff
Daniel Lynch ([EMAIL PROTECTED]) scribbled: If you want THE book on command line stuff, I would highly recommend the book UNIX Power Tools published by O'Reilly. It basically goes over every common UNIX command line tool and covers the common/useful tasks you might want to do with it. It's a very thick book, but don't be intimidated by its size,you can read just the sections you need. It's basically a recipe book. As far as a website, a decent tutorial for shell scripting is available at: http://www.tldp.org/LDP/abs/html/ oops, I totally forgot about that, # emerge -av abs-guide hth, jason. -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Simple command line stuff
http://rute.2038bug.com/index.html.gz On Sun, 9 Oct 2005 19:06:53 -0700 Mark Knecht wrote: Hi, I don't have a single book on Linux. (Amazing...) Can someone recommend a simple book on command line stuff, or better yet a good web site on this topic? For instance, I wanted to run a specific command on every file in a directory which will create a new file, so I need to do commandfile1.wavfile1-convert.wav I need to take each name, create a new name to build the actual command that gets run and then do that for every file in the directory, or even in a hierarchy of directories. Thanks, Mark -- gentoo-user@gentoo.org mailing list -- Nick Rout [EMAIL PROTECTED] -- gentoo-user@gentoo.org mailing list
