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kded --version return this
Qt: 3.3.8b
KDE: 3.5.10
KDE Daemon: $Id: kded.cpp 711061 2007-09-11 09:42:51Z tpatzig $
awk -F: ................. Awk Field separator
NR == 2 ................. Register Number, second line
{print $2} ............... second field
sed 's/\s\+//g' .......... remove one space or more \s\+ changing by nothing
when working with many machines in a computer lab need to know the IP addr is very large, this is a simplistic solution to make things easier
This mapping function is called RANDOM bash and enter a number between 1 and 100
-r to use extended regex
^ begin line
| alternative
get 100 or 0-9 one or two times
# first install arp-scan if not have it
arp-scan 10.1.1.0/24 .... show ip+mac in localnet
awk '/00:1b:11:dc:a9:65/ {print $1}' .... get ip associated with MAC
` backtick make do command substitution passing ip to command ping
This create an array 'a' with wole lines. only one occurrence of each line - Not Get lines ++ !
Use this command to insert line numbers in source files, .' ' control how spaces you insert after number.
create tar.bz2 package from files "-type f" modificated today "-mtime -1" in ~/project
"." is current dir, maxdepth is the level, -print0 | xargs -0 fix spaces in names, -i interactive , ./ is the current dir {} actual name , and {,.bak} is the atual name + bak