Check These Out
This script compares the modification date of /var/lib/dpkg/info/${package}.list and all the files mentioned there.
It could be wrong on noatime partitions.
Here is non-oneliner:
#!/bin/sh
package=$1;
list=/var/lib/dpkg/info/${package}.list;
inst=$(stat "$list" -c %X);
cat $list |
(
while read file; do
if [ -f "$file" ]; then
acc=$(stat "$file" -c %X);
if [ $inst -lt $acc ]; then
echo used $file
exit 0
fi;
fi;
done
exit 1
)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"
Only excludes .svn from filenames.
It helps you save a lot of writing :-)
look at /boot/grub/menu.lst for somethig like:
## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
## defoptions=vga=795
# defoptions=vga=873
## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
## altoptions=(recovery) single
# altoptions=(verbose mode) vga=775 debug
# altoptions=(console mode) vga=ask
# altoptions=(graphic mode) quiet splash
# altoptions=(recovery mode) single
vga=(decimal value) is framebuffer mode
The (in)famous "FizzBuzz" programming challenge, answered in a single line of Bash code. The "|column" part at the end merely formats the output a bit, so if "column" is not installed on your machine you can simply omit that part. Without "|column", the solution only uses 75 characters.
The version below is expanded to multiple lines, with comments added.
for i in {1..100} # Use i to loop from "1" to "100", inclusive.
do ((i % 3)) && # If i is not divisible by 3...
x= || # ...blank out x (yes, "x= " does that). Otherwise,...
x=Fizz # ...set x to the string "Fizz".
((i % 5)) || # If i is not divisible by 5, skip (there's no "&&")...
x+=Buzz # ...Otherwise, append (not set) the string "Buzz" to x.
echo ${x:-$i} # Print x unless it is blanked out. Otherwise, print i.
done | column # Wrap output into columns (not part of the test).
Creates a temporary ram partition
To use:
ram 3
to make a 3gb partition (Defaults to 1gb)
On the another machine write this command.
pv -r /dev/zero | nc 192.168.1.1 7777
It will show live throughput between two machine.The destination machine ip is at our example 192.168.1.1
You must multiply by 8 for the network calculation.
You must install pv and netcat commands for this commands usage.
kerim@bayner.com
http://www.bayner.com/
