‘Sed’ command #3 HackerRank Solution

Hello coders, In this post, you will learn how to solve ‘Sed’ command #3 HackerRank Solution. This problem is a part of the Linux Shell series.

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‘Sed’ command #3 HackerRank Solution
‘Sed’ command #3 HackerRank Solution

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‘Sed’ command #3 HackerRank Solution

Objective

Sed is a popular utility which enables quick parsing and transformation of text.

Here are some very simple examples of sed in action.

Substitute the first occurrence of ‘editor’ with ‘tool’.

$:~/hackerrank/bash/grep/grep1$ echo “My favorite programming editor is Emacs. Another editor I like is Vim.” | sed -e s/editor/tool/
My favorite programming tool is Emacs. Another editor I like is Vim.

Substitute all the occurrences of ‘editor’ with ‘tool’.

$:~/hackerrank/bash/grep/grep1$ echo “My favorite programming editor is Emacs. Another editor I like is Vim.” | sed -e s/editor/tool/g
My favorite programming tool is Emacs. Another tool I like is Vim.

Substitute the second occurrence of ‘editor’ with ‘tool’.

$:~/hackerrank/bash/grep/grep1$ echo “My favorite programming editor is Emacs. Another editor I like is Vim.” | sed -e s/editor/tool/2
My favorite programming editor is Emacs. Another tool I like is Vim.

Highlight all the occurrences of ‘editor’ by wrapping them up in brace brackets.

$:~/hackerrank/bash/grep/grep1$ echo “My favorite programming editor is Emacs. Another editor I like is Vim.” | sed -e s/editor/{&}/g
My favorite programming {editor} is Emacs. Another {editor} I like is Vim.

Some references for learning about sed have been included:

Task

Given an input file, in each line, highlight all the occurrences of ‘thy’ by wrapping them up in brace brackets. The search should be case-insensitive.

Input Format

A text file will be piped to your command via STDIN.

Output Format

Highlight all occurrences of ‘thy’ as shown in the example below.

Sample Input

From fairest creatures we desire increase,
That thereby beauty’s rose might never die,
But as the riper should by time decease,
His tender heir might bear his memory:
But thou contracted to thine own bright eyes,
Feed’st thy light’s flame with self-substantial fuel,
Making a famine where abundance lies,
Thy self thy foe, to thy sweet self too cruel:
Thou that art now the world’s fresh ornament,
And only herald to the gaudy spring,
Within thine own bud buriest thy content,
And tender churl mak’st waste in niggarding:
Pity the world, or else this glutton be,
To eat the world’s due, by the grave and thee.
When forty winters shall besiege thy brow,
And dig deep trenches in thy beauty’s field,
Thy youth’s proud livery so gazed on now,
Will be a tattered weed of small worth held:
Then being asked, where all thy beauty lies,
Where all the treasure of thy lusty days;
To say within thine own deep sunken eyes,
Were an all-eating shame, and thriftless praise.
How much more praise deserved thy beauty’s use,
If thou couldst answer ‘This fair child of mine
Shall sum my count, and make my old excuse’

Sample Output

From fairest creatures we desire increase,
That thereby beauty’s rose might never die,
But as the riper should by time decease,
His tender heir might bear his memory:
But thou contracted to thine own bright eyes,
Feed’st {thy} light’s flame with self-substantial fuel,
Making a famine where abundance lies,
{Thy} self {thy} foe, to {thy} sweet self too cruel:
Thou that art now the world’s fresh ornament,
And only herald to the gaudy spring,
Within thine own bud buriest {thy} content,
And tender churl mak’st waste in niggarding:
Pity the world, or else this glutton be,
To eat the world’s due, by the grave and thee.
When forty winters shall besiege {thy} brow,
And dig deep trenches in {thy} beauty’s field,
{Thy} youth’s proud livery so gazed on now,
Will be a tattered weed of small worth held:
Then being asked, where all {thy} beauty lies,
Where all the treasure of {thy} lusty days;
To say within thine own deep sunken eyes,
Were an all-eating shame, and thriftless praise.
How much more praise deserved {thy} beauty’s use,
If thou couldst answer ‘This fair child of mine
Shall sum my count, and make my old excuse’

Explanation

All occurrences of ‘thy’ have been highlighted by wrapping them up in brace brackets {}. The search and replacement has been done regardless of case.

‘Sed’ command #3 HackerRank Solution

sed -e 's/thy/{&}/gI'

Note: This problem  (‘Sed’ command #3) is generated by HackerRank but the solution is provided by  chase2learn. This tutorial is only for Learning and Educational purpose.

FAQ:

Bash and Linux Shell Practice on Hacker Rank

Bash and Linux Shell Practice. Learn and practice your Linux bash and text processing skills. The contest has ended. Speed. Accuracy. Efficiency.

Is it worth solving Linux Shell challenges in HackerRank?

Of course its worth . You might get some basic knowledge of for what kind of problem what command would be best .

What shell is in Linux?

sh – This is known as the Borne Shell and is the original shell; csh, tcsh – These are well-known and widely used derivatives of the Borne shell; ksh – The popular Korn shell; and. bash – The Borne Again SHell is the most popular shell used for linux and developed by GNU.

Where can I find HackerRank solutions in Linux Shell?

in this post you will get all the solutions of HackerRank Linux Shell Problems.

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Conclusion

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