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To find the product key for Windows Vista / 7 / 8.x /10, run the following in the command line: wmic path softwarelicensingservice get OA3xOriginalProductKey Powershell analog: powershell “(Get-WmiObject -query ‘select * from SoftwareLicensingService’).OA3xOriginalProductKey” If some keyboard key is pressed several times in the short period of time, the accessibility window will appear. It’s possible to disable this behaviour. Just create the following REG-file and import it with the regedit: Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Control Panel\Accessibility\StickyKeys] "Flags"="0" Alternative: just do it from the command line: REG ADD "HKEY_CURRENT_USER\Control […] The following error was displayed during the start of Oracle SQL Developer Data Modeler (v3.3.0.734) on Windows: Unable to create an instance of the Java Virtual Machine Located at path: ..\..\jdk\jre\bin\client\jvm.dll This could be fixed by editing the file datamodeler\bin\datamodeler.conf : try to change the following line AddVMOption -Xmx768M to AddVMOption -Xmx512M and restart Data […] Oracle Data Modeler in the current version (3.3.0.x) does not allow to change the user interface language in “Options” or somewhere else in the GUI. However, it’s possible to force it to switch to some other language, using datamodeler\bin\datamodeler.conf configuration file. The following lines should be added to the file for English: AddVMOption -Duser.language=en AddVMOption […] The old Oracle database (8i) was switched to the read-only mode. The following messages are shown now in alert.log: ***Warning – Executing transaction without active Undo Tablespace It’s possible, that the error is caused by Oracle bug 3270493 (EXCESSIVE QMNX TRACE FILES WHEN PLACING STANDBY IN READ ONLY MODE). Workaround is to set aq_tm_processes parameter […] The special variable $ARGV could be used to get the name of the input file. It returns the name of the file or ‘-‘ if the standard input was used. Here are some examples: perl -nle ‘END { print $ARGV }’ /etc/passwd /etc/passwd echo test | perl -nle ‘print $ARGV’ – $ (echo test; echo […] TCP packets could be catched by tcpdump: tcpdump -n -i any ‘tcp[tcpflags] & (tcp-syn|tcp-ack) == tcp-syn and port 80’ Here are the mount commands for different *nix systems. HP-UX nohup /usr/sbin/pfs_mountd & nohup /usr/sbin/pfsd & /usr/sbin/pfs_mount -t rrip -x unix /dev/dsk/c5t2d0 /SD_CDROM AIX mount -r -v cdrfs /dev/cd0 /cdrom Solaris Intel mount -F hsfs -r /dev/dsk/c0t6d0p0 /cdrom SPARC Solaris mount -r -F hsfs /dev/dsk/c0t6d0s2 /cdrom TRU64 mount -t cdfs -r -o nodefperm,noversion,rrip /dev/rz4c /cdrom […] Let’s search for the word “brave” in the string “Hello, new brave world!”. There are several methods to get the position of the match in Perl. #1 – use POS function Function pos returns the position, where search was finished. $txt = "Hello, brave new world!" ; $txt =~ m/(brave)/g; my $pos = pos($txt) – […] |