Unix, Linux, DevOps , Cloud computing and BigData Knowledge-Base


Working with Parted – Linux Partition tool

1. Introduction to Partitioning Parted is  a  program to manipulate disk partitions. It supports multiple partition table formats, including MS-DOS and GPT.  It is useful for creating space for new operating systems, reorganising disk usage, and copying data to new hard disks.


‘tail’: Output the last part of files

‘tail’ prints the last part (10 lines by default) of each FILE; it reads from standard input if no files are given or when given a FILE of ‘-‘. Synopsis: tail [OPTION]… [FILE]… If more than one FILE is specified, ‘tail’ prints a one-line header consisting...


‘fold’: Wrap input lines to fit in specified width

‘fold’ writes each FILE (‘-‘ means standard input), or standard input if none are given, to standard output, breaking long lines.  Synopsis:      fold [OPTION]… [FILE]… By default, ‘fold’ breaks lines wider than 80 columns.  The output is split into as many lines as necessary. ‘fold’...


‘numfmt’: Reformat numbers

‘numfmt’ reads numbers in various representations and reformats them as requested.  The most common usage is converting numbers to/from _human_representation (e.g.  ‘4G’ ==> ‘4,000,000,000’).      numfmt [OPTION]… [NUMBER]    ‘numfmt’ converts each NUMBER on the command-line according to the specified options (see below).  If no NUMBERs...


‘fmt’: Reformat paragraph text

‘fmt’ fills and joins lines to produce output lines of (at most) a given number of characters (75 by default).  Synopsis:      fmt [OPTION]… [FILE]…    ‘fmt’ reads from the specified FILE arguments (or standard input if none are given), and writes to standard output.   ...


‘base64’: Transform data into printable data

‘base64’ transforms data read from a file, or standard input, into (or from) base64 encoded form.  The base64 encoded form uses printable ASCII characters to represent binary data.  Synopses:      base64 [OPTION]… [FILE]      base64 –decode [OPTION]… [FILE] The base64 encoding expands data to roughly 133%...

VCS information Center

  VCS for Beginners Read – VCS for Beginners – Getting Started with VCS Read – VCS for Beginners– Cluster Membership & IO Fencing Read – VCS for Beginners – Understand Jeopardy Condition with real time scenerio Read – VCS for Beginners – Configuring Veritas Cluster...

VxVM Information Center

VxVM Beginners Learning Read – VxVM Beginner’s Lesson Read – VxVM Learning with Commands and Examples Read – What is new in VxSF 6.0 Read – Important Definitions of VxVM Read – VxVM Volume States and Plex States Read – Veritas Plex state Transition VxVM How-to...

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