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Showing posts from August, 2010

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Convert [from/to] PDF [to/from] PS (PostScript)

In Ubuntu, it only takes a couple of steps for you to convert from/to PDF to/from PS or postscript. For this you may have to install pdftops (read as PDF TO PS). You can install this from either Ubuntu's Synaptic Package Manager or from terminal by running the below command: $ sudo apt-get install xpdf-utils For this you may also have to install ps2pdf, if only, it is not available by default with Ubuntu. Command: Convert PDF -> PS $ pdftops -paper [letter,legal,A4,A3,match] -upw <userpwd4encryptedfile> pdf_file_name.pdf Eg: $ pdftops -paper A4 - upw kartzontech my_contacts.pdf where, -paper A4 option implies that I want the PDF to serve A4 paper size compatible PDF -upw kartzontech throws a password (kartzontech) to sign-in to password protected PDF file for its conversion to PS Command: Convert PS -> PDF $ ps2pdf source.ps destination.pdf Ebook Suggestion: For big bundle of tips, tricks, hints and hacks in Ubuntu, the book from Pragmat

Ubuntu Keyboard Short-cuts

Workspace Management Win E => Shows all workspaces in a nifty way and lets you switch between workspaces easily. Alt Ctrl [Left/Right Arrow] => Move to Workspace on Left/Right Alt Ctrl Shift [Left/Right Arrow] => Move current window/application to another workspace Window Management Alt F4 => Closes the window. Alt F5 => UnMaximizes Current Window (or Returns a window to previous or normal size.) Alt F9 => Minimize current window Alt F10 => Maximize/UnMaximizes current window Ctrl Alt D => Show Desktop/ Restore open windows if show desktop used earlier Nautilus (Nautilus is the default GNOME file manager window that you use in your GUI to view files and folders.) F9 => Show/hide the side pane. Ctrl + => Zoom in. Ctrl - => Zoom out. Ctrl 0 => Normal size. Ctrl [1/2] => Change folder view to icon/list. Ctrl H => Show/hide hidden files Ctrl L => Show/hide the location bar Ctrl R => Reloa

ORA-28000: the account is locked

Problem: ORA-28000: the account is locked Cause: This happens for reasons galore. Some of them being as follows: if bad password is provided more than the permissible number of times, then the account gets locked the DBA has locked the specific account for some reason Solution: You can request the administrator to unlock the account :P He would fire a query something like the one below: SQL> alter user scott identified by tiger account unlock ; For more explanation on this read  Oracle DBA Tips   or even better take deep dive by buying the coolest book  Oracle Database 10g: The Complete Reference (Osborne ORACLE Press Series)