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Installs pip packages defining a proxy
If X is 5, it will about a number between 1 and 5 inclusive.
This works in bash and zsh.
If you want between 0 and 4, remove the +1.
Converts any number of seconds into days, hours, minutes and seconds.
sec2dhms() {
declare -i SS="$1"
D=$(( SS / 86400 ))
H=$(( SS % 86400 / 3600 ))
M=$(( SS % 3600 / 60 ))
S=$(( SS % 60 ))
[ "$D" -gt 0 ] && echo -n "${D}:"
[ "$H" -gt 0 ] && printf "%02g:" "$H"
printf "%02g:%02g\n" "$M" "$S"
}
Imagine you've started a long-running process that involves piping data,
but you forgot to add the progress-bar option to a command.
e.g.
$ xz -dc bigdata.xz | complicated-processing-program > summary
.
This command uses lsof to see how much data xz has read from the file.
$ lsof -o0 -o -Fo FILENAME
Display offsets (-o), in decimal (-o0), in parseable form (-Fo)
This will output something like:
.
p12607
f3
o0t45187072
.
Process id (p), File Descriptor (f), Offset (o)
.
We stat the file to get its size
$ stat -c %s FILENAME
.
Then we plug the values into awk.
Split the line at the letter t: -Ft
Define a variable for the file's size: -s=$(stat...)
Only work on the offset line: /^o/
.
Note this command was tested using the Linux version of lsof.
Because it uses lsof's batch option (-F) it may be portable.
.
Thanks to @unhammer for the brilliant idea.
Get information of volume labels of bitlocker volumes, even if they are encrypted and locked (no access to filesystem, no password provided). Note that the volume labels can have spaces, but only if you name then before encryption. Renaming a bitlocker partition after being encrypted does not have the same effect as doing it before.
In Python version 3, the module was merged into http.server. Gentlemen, change your aliases.
If you are behind a proxy server and have to authenticate with proxy server to browser web pages then you have to pass proxy server address and its port number along with user credentials to curl to got GET the page using curl. Example : "curl -U srikanth -x 167.85.103.70:8080 http://www.yahoo.com". In case you don't specify the password (as in the above example), curl will prompt to enter the password at the command line.
Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video).
$ cat /proc/acpi/video/VGA/LCD/brightness
to discover the possible values for your display.
Works for most distributions, tested on Ubuntu, Fedora, CentOS, Gentoo, SUSE, RedHat.
Debian and Slackware:
$cat /etc/*version
