xmllint - command line XML tool

FORMAT
       xmllint [--format --dtdvalid ..]{XML-FILE(S)... -}

For help:       xmllint --help

DESCRIPTION

• The xmllint program parses one or more XML files, specified on the command line as XML-FILE (or the standard input if the filename provided is - ).
• It prints various types of output, depending upon the options selected. It is useful for detecting errors both in XML code and in the XML parser itself.

Examples:

... Read more »

xmlwf - Determines if an XML document is well-formed. It is non- validating parser.

FORMAT
       xmlwf  [ -s]  [ -n]  [ -p]  [ -x]  [ -e encoding]  [ -w]  [ -d output-dir]  [ -c]  [ -m]  [ -r]  [ -t]  [ -v] [ file ...]

DESCRIPTION
       xmlwf uses the Expat library to determine if an XML document is well-formed.  It

hexdump - is a Linux utility to dump the file content into ascii, decimal, hexadecimal, octal formats. 

It accepts the input from a file or from standard input and creates a dump in ASCII, octal. hexadecimal or decimal formats.

FORMAT
      [-bcCdovx] [-e format_string] [-f format_file] [-n length] [-s skip] file ...

DESCRIPTION

SETFACL - set file access control lists or set special permissions to a file or directory.

FORMAT
       setfacl [-bkndRLPvh] [{-m|-x} acl_spec] [{-M|-X} acl_file] file ...

       setfacl --restore=file

DESCRIPTION
       This  utility  sets  Access  Control Lists (ACLs) of files and directories.  On the command line, a sequence of commands is followed by a sequence of files (which in turn can be followed by another sequence of commands, ...).

       The options -m, and -x expect an ACL on the command line. Multiple ACL entries are separated by comma characters (`,'). The options -M, and  -X ... Read more »

getent - get entries from Name Service Switch libraries or administrative databases like passwd, shadow, group etc.

FORMAT
getent [Options..] database [key ...]

DESCRIPTION
 

• The getent command displays entries from databases supported by the Name Service Switch libraries, which are configured in /etc/nsswitch.

TIME a simple command to give resource usage in Linux system

FORMAT
       time [options] command [arguments...]

DESCRIPTION
       The  time command runs the specified program/command with the given arguments.  When command finishes, time writes a message to standard error giving timing statistics about the program run.  

... Read more »

The command is used to configure kernel parameters at runtime

Most frequent usage:

1. Enable/disable IP forwarding
2. Change/Edit network configuration for ipv4/ipv6
3. Change/Edit kernel parameters like hostaname, domainname, max_lock_depth. ostype, pid_max etc
4. Change/edit file system

Here in this artice we will learn how to create a simple website with your custom url.

Suppose you have made a simple webpage. You want to make it global instead of putting it into your hard disc. You want to make it accessible globally.

<

DESCRIPTION
traceroute tracks the route packets take across a TCP/IP network on their way to a given host.

See traceroute command in Linux also.

How it works??

• Tracert utility uses the ttl field of ip packet header to accomplish its goal. TTL field(usually set to 32 or 64) tells us the number of hops a packet will have travel to reach to its destination host.
• Each time a packet passes a hop, the ttl value is decreased by one and when the TTL value at an intermediate hop (router) becomes 1, the packet is discarded.
• ... Read more »

The command is used to get all the hops through which the packet is passing.

DESCRIPTION
       traceroute  tracks  the  route  packets take across a TCP/IP network on their way to a given host.

See the same command TRACERT in windows command line

How it works