41,046
students have developed their Bash skills on Exercism.

Students
41,046
Submissions
284,006
Mentoring Discussions
6,672

The Bash track needs attention ⚠️

Building

Build

Use your knowledge to build the Bash track itself

Build Test Runners

Learn More

Create Test Runners that have the single responsibility of taking a solution, running all tests and returning a standardized output.

Usage statistics

Total Test Runner Runs
261,427
Test Run Pass Rate
21.2% (55356)
Test Run Fail Rate
77.3% (202125)
Test Run Error Rate
1.5% (3946)

Build Analyzers

Learn More

Build an Analyzer for Bash: Exercism's analyzers automatically assess student's submissions and provide mentor-style commentary.

Usage statistics

Total Analyzer Runs
43,877
Total Analysis Comments Made
34,297
Feedback Given Frequency
5.6%

Build Representers

Learn More

Build a Representer: a bit of code that has the single responsibility of taking a solution and returning a normalized representation of it.

Next goal: Build a Representer. Find out more.

Create Practice Exercises

Learn More

Practice Exercises are exercises designed to allow students to solve an arbitrary problem, with the aim of them making use of the concepts they have learned so far.

Next goal: Implement 130 practice exercises. Find out more.

Usage statistics

89 active practice exercises
Started
Attempts
Completions
Mentoring requests
Hello World Hello World
22,971
32,904 (avg. 1.4)
18,070 (78.7%)
7 (0.0%)
Two Fer Two Fer
13,735
59,716 (avg. 4.3)
6,196 (45.1%)
1,968 (14.3%)
Error Handling Error Handling
6,034
29,057 (avg. 4.8)
3,518 (58.3%)
889 (14.7%)
Raindrops Raindrops
3,794
22,519 (avg. 5.9)
2,673 (70.5%)
635 (16.7%)
Hamming Hamming
2,529
23,496 (avg. 9.3)
1,781 (70.4%)
459 (18.1%)
Acronym Acronym
1,848
16,175 (avg. 8.8)
1,263 (68.3%)
321 (17.4%)
Armstrong Numbers Armstrong Numbers
1,436
7,326 (avg. 5.1)
1,127 (78.5%)
315 (21.9%)
Pangram Pangram
1,153
7,699 (avg. 6.7)
898 (77.9%)
240 (20.8%)
Bob Bob
1,024
13,437 (avg. 13.1)
612 (59.8%)
200 (19.5%)
Scrabble Score Scrabble Score
848
4,115 (avg. 4.9)
640 (75.5%)
153 (18.0%)
Grains Grains
1,247
6,784 (avg. 5.4)
713 (57.2%)
363 (29.1%)
Luhn Luhn
535
6,450 (avg. 12.1)
376 (70.3%)
129 (24.1%)
Atbash Cipher Atbash Cipher
427
3,674 (avg. 8.6)
309 (72.4%)
118 (27.6%)
Reverse String Reverse String
2,572
4,242 (avg. 1.6)
1,659 (64.5%)
165 (6.4%)
Leap Leap
1,618
5,114 (avg. 3.2)
1,115 (68.9%)
142 (8.8%)
Resistor Color Duo Resistor Color Duo
680
2,671 (avg. 3.9)
509 (74.9%)
72 (10.6%)
Secret Handshake Secret Handshake
337
2,859 (avg. 8.5)
209 (62.0%)
29 (8.6%)
Darts Darts
289
2,197 (avg. 7.6)
178 (61.6%)
23 (8.0%)
D&D Character D&D Character
266
1,546 (avg. 5.8)
144 (54.1%)
24 (9.0%)
Matching Brackets Matching Brackets
459
1,916 (avg. 4.2)
245 (53.4%)
38 (8.3%)
Proverb Proverb
373
1,153 (avg. 3.1)
252 (67.6%)
32 (8.6%)
Resistor Color Trio Resistor Color Trio
300
1,798 (avg. 6.0)
182 (60.7%)
31 (10.3%)
Sieve Sieve
223
1,178 (avg. 5.3)
133 (59.6%)
18 (8.1%)
Grep Grep
360
1,317 (avg. 3.7)
124 (34.4%)
29 (8.1%)
Tournament Tournament
158
1,062 (avg. 6.7)
65 (41.1%)
13 (8.2%)
Bowling Bowling
135
547 (avg. 4.1)
50 (37.0%)
9 (6.7%)
OCR Numbers OCR Numbers
117
407 (avg. 3.5)
40 (34.2%)
2 (1.7%)
Clock Clock
167
1,269 (avg. 7.6)
85 (50.9%)
5 (3.0%)
Markdown Markdown
158
402 (avg. 2.5)
45 (28.5%)
8 (5.1%)
Rectangles Rectangles
88
639 (avg. 7.3)
23 (26.1%)
2 (2.3%)
House House
159
1,059 (avg. 6.7)
76 (47.8%)
6 (3.8%)
Nucleotide Count Nucleotide Count
352
1,047 (avg. 3.0)
254 (72.2%)
34 (9.7%)
Rotational Cipher Rotational Cipher
127
599 (avg. 4.7)
72 (56.7%)
6 (4.7%)
Binary Search Binary Search
141
741 (avg. 5.3)
68 (48.2%)
13 (9.2%)
Kindergarten Garden Kindergarten Garden
83
232 (avg. 2.8)
32 (38.6%)
1 (1.2%)
Robot Simulator Robot Simulator
94
381 (avg. 4.1)
48 (51.1%)
4 (4.3%)
Run-Length Encoding Run-Length Encoding
95
723 (avg. 7.6)
45 (47.4%)
6 (6.3%)
Transpose Transpose
86
652 (avg. 7.6)
30 (34.9%)
1 (1.2%)
Yacht Yacht
77
257 (avg. 3.3)
29 (37.7%)
1 (1.3%)
Poker Poker
88
59 (avg. 0.7)
19 (21.6%)
1 (1.1%)
Two Bucket Two Bucket
85
105 (avg. 1.2)
22 (25.9%)
2 (2.4%)
Wordy Wordy
72
277 (avg. 3.8)
22 (30.6%)
1 (1.4%)
Rail Fence Cipher Rail Fence Cipher
77
73 (avg. 0.9)
22 (28.6%)
3 (3.9%)
Difference of Squares Difference of Squares
368
778 (avg. 2.1)
272 (73.9%)
22 (6.0%)
Prime Factors Prime Factors
105
341 (avg. 3.2)
59 (56.2%)
5 (4.8%)
Triangle Triangle
269
926 (avg. 3.4)
162 (60.2%)
12 (4.5%)
All Your Base All Your Base
106
604 (avg. 5.7)
42 (39.6%)
3 (2.8%)
Gigasecond Gigasecond
312
485 (avg. 1.6)
222 (71.2%)
11 (3.5%)
ISBN Verifier ISBN Verifier
146
444 (avg. 3.0)
87 (59.6%)
5 (3.4%)
Pascal's Triangle Pascal's Triangle
69
71 (avg. 1.0)
25 (36.2%)
2 (2.9%)
Diffie-Hellman Diffie-Hellman
77
80 (avg. 1.0)
25 (32.5%)
1 (1.3%)
Rational Numbers Rational Numbers
60
43 (avg. 0.7)
16 (26.7%)
1 (1.7%)
Variable Length Quantity Variable Length Quantity
58
31 (avg. 0.5)
16 (27.6%)
1 (1.7%)
RNA Transcription RNA Transcription
326
612 (avg. 1.9)
253 (77.6%)
14 (4.3%)
Anagram Anagram
249
911 (avg. 3.7)
164 (65.9%)
9 (3.6%)
Isogram Isogram
176
408 (avg. 2.3)
115 (65.3%)
5 (2.8%)
Phone Number Phone Number
238
634 (avg. 2.7)
152 (63.9%)
8 (3.4%)
Protein Translation Protein Translation
97
310 (avg. 3.2)
51 (52.6%)
3 (3.1%)
Word Count Word Count
235
1,127 (avg. 4.8)
121 (51.5%)
8 (3.4%)
Diamond Diamond
130
159 (avg. 1.2)
62 (47.7%)
2 (1.5%)
Sublist Sublist
84
221 (avg. 2.6)
38 (45.2%)
1 (1.2%)
Beer Song Beer Song
124
749 (avg. 6.0)
66 (53.2%)
5 (4.0%)
Queen Attack Queen Attack
83
240 (avg. 2.9)
39 (47.0%)
0 (0.0%)
Twelve Days Twelve Days
106
264 (avg. 2.5)
45 (42.5%)
2 (1.9%)
Pig Latin Pig Latin
70
89 (avg. 1.3)
23 (32.9%)
1 (1.4%)
Crypto Square Crypto Square
58
149 (avg. 2.6)
18 (31.0%)
1 (1.7%)
Food Chain Food Chain
71
84 (avg. 1.2)
20 (28.2%)
2 (2.8%)
Meetup Meetup
51
27 (avg. 0.5)
13 (25.5%)
1 (2.0%)
Spiral Matrix Spiral Matrix
59
22 (avg. 0.4)
13 (22.0%)
1 (1.7%)
Largest Series Product Largest Series Product
86
250 (avg. 2.9)
41 (47.7%)
1 (1.2%)
Series Series
110
284 (avg. 2.6)
58 (52.7%)
5 (4.5%)
Collatz Conjecture Collatz Conjecture
274
341 (avg. 1.2)
198 (72.3%)
15 (5.5%)
Space Age Space Age
102
241 (avg. 2.4)
56 (54.9%)
3 (2.9%)
Square Root Square Root
85
166 (avg. 2.0)
55 (64.7%)
3 (3.5%)
Say Say
72
43 (avg. 0.6)
23 (31.9%)
0 (0.0%)
Pythagorean Triplet Pythagorean Triplet
66
258 (avg. 3.9)
21 (31.8%)
2 (3.0%)
Change Change
87
84 (avg. 1.0)
19 (21.8%)
1 (1.1%)
Knapsack Knapsack
60
50 (avg. 0.8)
14 (23.3%)
1 (1.7%)
Allergies Allergies
116
429 (avg. 3.7)
58 (50.0%)
3 (2.6%)
Perfect Numbers Perfect Numbers
96
513 (avg. 5.3)
49 (51.0%)
2 (2.1%)
Sum of Multiples Sum of Multiples
105
492 (avg. 4.7)
53 (50.5%)
2 (1.9%)
Roman Numerals Roman Numerals
149
306 (avg. 2.1)
81 (54.4%)
4 (2.7%)
Nth Prime Nth Prime
78
114 (avg. 1.5)
20 (25.6%)
4 (5.1%)
Palindrome Products Palindrome Products
59
206 (avg. 3.5)
13 (22.0%)
0 (0.0%)
Simple Cipher Simple Cipher
62
107 (avg. 1.7)
16 (25.8%)
0 (0.0%)
Affine Cipher Affine Cipher
109
155 (avg. 1.4)
47 (43.1%)
2 (1.8%)
Forth Forth
72
46 (avg. 0.6)
18 (25.0%)
1 (1.4%)
Satellite Satellite
52
34 (avg. 0.7)
9 (17.3%)
0 (0.0%)
List Ops List Ops
47
204 (avg. 4.3)
20 (42.6%)
1 (2.1%)
41 unimplemented practice exercises
Alphametics Alphametics
Bank Account Bank Account
Binary Search Tree Binary Search Tree
Book Store Book Store
Bottle Song Bottle Song
Circular Buffer Circular Buffer
Complex Numbers Complex Numbers
Connect Connect
Custom Set Custom Set
DOT DSL DOT DSL
Dominoes Dominoes
ETL ETL
Flatten Array Flatten Array
Go Counting Go Counting
Grade School Grade School
Hangman Hangman
High Scores High Scores
Killer Sudoku Helper Killer Sudoku Helper
Ledger Ledger
Lens Person Lens Person
Linked List Linked List
Matrix Matrix
Micro Blog Micro Blog
Minesweeper Minesweeper
POV POV
PaaS I/O PaaS I/O
Parallel Letter Frequency Parallel Letter Frequency
REST API REST API
React React
Resistor Color Resistor Color
Robot Name Robot Name
SGF Parsing SGF Parsing
Saddle Points Saddle Points
Scale Generator Scale Generator
Simple Linked List Simple Linked List
State of Tic-Tac-Toe State of Tic-Tac-Toe
Strain Strain
Tree Building Tree Building
Word Search Word Search
Zebra Puzzle Zebra Puzzle
Zipper Zipper