1,273 reputation
811
bio website ciupicri.github.io
location Bucharest, Romania
age 32
visits member for 4 years, 2 months
seen 1 min ago

There are 10 types of people: those who understand binary, and those who don't.

I go by the nick ciupicri in other places.

My CV is available on the Careers SE.

I also help newbies on the #coding-n00bs channel on freenode. Feel free to reach me over there if you can't or don't want to use the Stack Exchange chat.


1d
comment GIF screencasting; the UNIX way
Related: How to create animated GIF images of a screencast? from Ask Ubuntu.
Oct
18
suggested suggested edit on Scale cpu frequency in CLI?
Oct
18
revised Converting relative path to absolute path
give examples of some realpath(1) utilities; added link to realpath(3) man page
Oct
18
suggested suggested edit on Converting relative path to absolute path
Oct
18
revised Is there a way to run a privileged command upon successful SSH login (not necessarily with shell or PTY)?
added link to pam_exec.so module
Oct
18
suggested suggested edit on Is there a way to run a privileged command upon successful SSH login (not necessarily with shell or PTY)?
Oct
17
revised How can I detect a user login programmatically?
improved formatting; linked to pam-python project
Oct
17
comment How can I detect a user login programmatically?
Based on your mention of /var/log/auth.log, we can assume you're not using the journal from systemd, right?
Oct
17
suggested suggested edit on How can I detect a user login programmatically?
Oct
15
revised Advantages/disadvantages of increasing “commit” in fstab
commit is a mount option specific to ext3 & ext4 filesystems
Oct
15
suggested suggested edit on Advantages/disadvantages of increasing “commit” in fstab
Oct
15
comment How Stephane found Shellshock
Related: his answer to "When was the shellshock (CVE-2014-6271/7169) bug introduced, and what is the patch that fully fixes it?".
Oct
14
revised Where / How to install CentOS 7 for 32 bit system?
improved formatting
Oct
14
suggested suggested edit on Where / How to install CentOS 7 for 32 bit system?
Oct
13
comment Linux split separate files on disk but see as one
If you would look at cat source code from GNU coreutils 8.23, you would see that the files are read in chunks which are most of the time 128 KiB (unless the blocksize for file system I/O returned stat(2) is bigger).
Oct
13
suggested suggested edit on Linux split separate files on disk but see as one
Oct
10
comment How to parallelize dd?
What CPU and filesystem do you have? How big is the file (length & blocks)?
Oct
10
comment How to parallelize dd?
I don't see what you could gain from this, as this operation is I/O bound except in extreme cases. In my opinion the best option would be a program that's sparse aware, e.g something like xfs_copy. Its man page mentions: "However, if the file is created on an XFS filesystem, the file consumes roughly the amount of space actually used in the source filesystem by the filesystem and the XFS log. The space saving is because xfs_copy seeks over free blocks instead of copying them and the XFS filesystem supports sparse files efficiently.".
Oct
9
comment Which command has the longest manual?
Please add some headers to the tables.
Oct
9
revised How to identify LVM-over-LUKS or LUKS-over-LVM
added link to man page