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Marburg · 05-11-2004, 12:15 PM

I've been a linux user for a fair amount of time now, but it's just now that I'm getting really used to the command line interface.
I've picked up a few cool tidbits here and there, and I'm sure a lot of you have too, so let's hear 'em.

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Here's a flexible sequntial download (think ezpics)

Code:

for NUM in `seq -f %02g 00 30`; do URL="http://www.coasar.com/newgalleries/pbc/ahv/03/images/fullimage/0$moo.jpg"; wget $NUM 2>/dev/null && echo Downloaded $URL || echo "    Failed $URL" ;  done

you can type that into console and away we go. (by the way, that link is NSFW)

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This one I picked up on the net somewhere.
I use firefox almost exclusively, so I set up aMSN to open up links with firefox. The major problem with that though is that if I'm already "surfin' the web" firefox will ask me to launch with a different profile.

Here's a fix that will make it so that if firefox is already open it'll open the link in a new tab. Open up your favorite text editor *cough*VI*cough* and paste this:

Code:

#!/bin/bash
/etc/firefox/firefox -remote "openURL($@, new-tab)" >/dev/null || exec /etc/firefox/firefox "$@" >/dev/null;

Make sure to save that file somewhere in your $PATH
Now you can do stuff like this (i called mine firefox_newtab)

Code:

firefox_newtab www.tfproject.org

I'm pretty sure that if you use mozilla you can just replace every instance of "firefox" with "mozilla".

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This is likely common knowledge but I'm going to write in anyway, just incase someone finds it usefull.

In my tips i used && (and) and || (or).

If two commands are seperated by && then the the second will only be executed if the first one is sucessfull. For example:

Code:

./configure && make

if configure fails (which it does so often) make won't even start.

If two commands are sperated by || (two pipes, shift + \ ) the second command will only execute if the first fails. E.g.:

Code:

wget http://www.moo.com/somefile.tar || echo Download Failed

If you follow a command with >/dev/null it won't print it's standard output to the screen. Compares these:

Code:

echo Beyond here lie dragons
echo Beyond here lie dragons >/dev/null

Anyway, I'm very much still new at this and I'm curious about something that other people have picked up over the years.

05-11-2004, 12:15 PM	#1 (permalink)
Marburg Crazy Location: Nova Scotia, Canada	Share you Bash Command Line Tips & Tricks I've been a linux user for a fair amount of time now, but it's just now that I'm getting really used to the command line interface. I've picked up a few cool tidbits here and there, and I'm sure a lot of you have too, so let's hear 'em. ----- Here's a flexible sequntial download (think ezpics) Code: for NUM in `seq -f %02g 00 30`; do URL="http://www.coasar.com/newgalleries/pbc/ahv/03/images/fullimage/0$moo.jpg"; wget $NUM 2>/dev/null && echo Downloaded $URL \|\| echo " Failed $URL" ; done you can type that into console and away we go. (by the way, that link is NSFW) ----- This one I picked up on the net somewhere. I use firefox almost exclusively, so I set up aMSN to open up links with firefox. The major problem with that though is that if I'm already "surfin' the web" firefox will ask me to launch with a different profile. Here's a fix that will make it so that if firefox is already open it'll open the link in a new tab. Open up your favorite text editor coughVIcough and paste this: Code: #!/bin/bash /etc/firefox/firefox -remote "openURL($@, new-tab)" >/dev/null \|\| exec /etc/firefox/firefox "$@" >/dev/null; Make sure to save that file somewhere in your $PATH Now you can do stuff like this (i called mine firefox_newtab) Code: firefox_newtab www.tfproject.org I'm pretty sure that if you use mozilla you can just replace every instance of "firefox" with "mozilla". ----- This is likely common knowledge but I'm going to write in anyway, just incase someone finds it usefull. In my tips i used && (and) and \|\| (or). If two commands are seperated by && then the the second will only be executed if the first one is sucessfull. For example: Code: ./configure && make if configure fails (which it does so often) make won't even start. If two commands are sperated by \|\| (two pipes, shift + \ ) the second command will only execute if the first fails. E.g.: Code: wget http://www.moo.com/somefile.tar \|\| echo Download Failed If you follow a command with >/dev/null it won't print it's standard output to the screen. Compares these: Code: echo Beyond here lie dragons echo Beyond here lie dragons >/dev/null Anyway, I'm very much still new at this and I'm curious about something that other people have picked up over the years. __________________ Ask a simple question... get pain.