(1) Join the 2 separate PDFs into 1 file (e.g. joined.pdf) using tools such as pdfunite, pdfsam or pdfshuffler.
(2) Install pdfjam.
(Note: If you’re using Arch Linux, pdfjam is included in the texlive-bin package)
(3) Use the pdfnup tool from the pdfjam package to merge page 1 and page 2 of joined.pdf into a new pdf file consisting of only a single page, with page 1 stacked on top of page 2:
$ pdfnup joined.pdf --nup 1x2
Just asked someone a simple question with binary answer, either a Yes or a No, but he replied ‘Noted!’. So should I take follow-up action based on Yes or No? Bwahaha… don’t know what to say. 😛
$ netstat -i
Look under the last column “Flg” for value “P”. If it’s there, it means promiscuous mode is enabled for that network interface. Is the flag really P and not M? Here’s a quick test. Check existing active flags:
[root@localhost ~]# netstat -i Kernel Interface table
Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg
eth0 1500 0 2075 0 0 0 1366 0 0 0 BMRU
lo 16436 0 1985 0 0 0 1985 0 0 0 LRU
Turn multicast off on eth0:
[root@localhost ~]# ip link set eth0 multicast off
Notice that the ‘M’ flag is gone? So, M is for multicast:
[root@localhost ~]# netstat -i Kernel Interface table
Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg
eth0 1500 0 2075 0 0 0 1369 0 0 0 BRU
lo 16436 0 1985 0 0 0 1985 0 0 0 LRU
Turn promiscuous mode on:
[root@localhost ~]# ip link set eth0 promisc on
Notice that the ‘P’ flag is now shown:
[root@localhost ~]# netstat -i Kernel Interface table
Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg
eth0 1500 0 2075 0 0 0 1370 0 0 0 BPRU
lo 16436 0 1985 0 0 0 1985 0 0 0 LRU
UPDATE 20130531: This post wrongly indicated that the “M” flag indicates promiscuous mode. Sorry for the confusion. I got that from other incorrect sources as well. It seems quite many online sources got that wrong. Thanks to the helpful commenters for correcting this mistake.
After upgrading Ubuntu 11.04 (Natty Narwhal) to 11.10 (Oneiric Ocelot), GVim starts to behave weirdly.
6 May 2012 UPDATE: Issue persists even after upgrading to 12.04 (Precise Pangolin)! 🙁
Symptoms:
** (gvim:5933): IBUS-WARNING **: Create input context failed: Timeout was reached.** (gvim:5760): WARNING **: Unable to register window with path '/com/canonical/menu/5C00024': Timeout was reachedWorkaround:
Run gvim -f instead of just gvim.
Put this in your .bashrc if you don’t want to add -f all the time, or if you already have other aliases using gvim and you don’t want to change all of them:
gvim(){ setsid /usr/bin/gvim -f "$@"; }
Let’s say we need to:
/bin/su in LinuxFor RPM (Fedora, Red Hat, CentOS):
$ rpm -q -f /bin/su coreutils-5.97-34.el5
$ rpm -V coreutils-5.97-34.el5
For DEB (Debian, Ubuntu):
$ dpkg -S /bin/su login: /bin/su
$ debsums -s -a login
Scenario:
VirtualBox version = 4.0.12
Guest OS = Win 7
Host OS = Linux Mint 9 Isadora (based on Ubuntu)
Perform these tasks on all the Win 7 local hard-disks:
Shutdown the Win 7 VM, then run this command on Mint:
$ VBoxManage modifyhd win7.vdi --compact
That freed up 5GB of space for me, a 20% reduction.
Install QPDF, then:
$ qpdf --password=? --decrypt in.pdf out.pdf
This doesn’t crack or guess the password for you. You must already know the password. It merely helps you to create a copy of the PDF without password protection.
A university is a living organism. Its role is not just to transfer knowledge to the younger generation but to also be at the forefront of knowledge creation and innovation so as to expand our collective knowledge as a society and make the world a better place.
— Bertil Andersson, President of NTU (Nanyang Technological University), 1 July 2011
In an interview with Argentina’s La Pagina, Linux founder Linus Torvalds shares his view of Linux ideology.
Q: What ideology has Linux?
A: I don’t think there is an ideology, and I don’t think there *should* be an ideology. And the important part of that is the “an” – I think there can be *many* ideologies. I do it for my own reasons, other people do it for _their_ own reasons. I think the world is a complicated place, and people are interesting and complicated animals that do things for complex reasons. And that’s why I don’t think there should be “an ideology”. I think it’s really refreshing to see people working on Linux because they believe they can make the world a better place by spreading technology and making it available to people more widely – and they think that open source is a good way to do that. That’s _one_ ideology. I think it’s a great one. It isn’t really why I started doing Linux myself, but it warms my heart to see Linux used that way. But I _also_ think that it’s great to see all the commercial companies that use open source simply because it’s good for business. That’s a totally different ideology, and I think that’s a perfectly good ideology too. The world would be a _much_ worse place if we didn’t have companies doing things for money. So the only ideology I really despise and dislike is the kind that is about exclusion of other ones. I despise people whose ideology is about “the one true ideology”, and not following that particular set of moral guidelines is “evil” or “wrong”. That’s just small-minded and stupid, to me. So the important part about open source is not the ideology – it’s just that everybody can use it for their own needs and for their own reasons. The copyright license is there to keep that openness alive, and to make sure that the project doesn’t fragment into people who hide their improvements from each other and then have to re-implement each others changes – but it’s not there to enforce some ideology.