45,805
students have developed their Bash skills on Exercism.

Students
45,805
Submissions
339,686
Mentoring Discussions
6,836

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
316,980
Test Run Pass Rate
21.0% (66642)
Test Run Fail Rate
77.6% (245965)
Test Run Error Rate
1.4% (4373)

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
53,781
Total Analysis Comments Made
39,447
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
26,762
39,432 (avg. 1.5)
21,320 (79.7%)
7 (0.0%)
Two Fer Two Fer
16,256
71,377 (avg. 4.4)
7,134 (43.9%)
2,006 (12.3%)
Error Handling Error Handling
7,064
35,049 (avg. 5.0)
4,128 (58.4%)
908 (12.9%)
Raindrops Raindrops
4,470
28,096 (avg. 6.3)
3,130 (70.0%)
657 (14.7%)
Hamming Hamming
2,950
29,079 (avg. 9.9)
2,062 (69.9%)
469 (15.9%)
Acronym Acronym
2,195
19,575 (avg. 8.9)
1,492 (68.0%)
331 (15.1%)
Armstrong Numbers Armstrong Numbers
1,648
8,792 (avg. 5.3)
1,297 (78.7%)
322 (19.5%)
Pangram Pangram
1,337
8,951 (avg. 6.7)
1,044 (78.1%)
247 (18.5%)
Bob Bob
1,184
15,973 (avg. 13.5)
717 (60.6%)
204 (17.2%)
Scrabble Score Scrabble Score
969
4,693 (avg. 4.8)
744 (76.8%)
155 (16.0%)
Grains Grains
1,357
8,291 (avg. 6.1)
795 (58.6%)
370 (27.3%)
Luhn Luhn
611
7,602 (avg. 12.4)
431 (70.5%)
133 (21.8%)
Atbash Cipher Atbash Cipher
478
4,521 (avg. 9.5)
350 (73.2%)
122 (25.5%)
Reverse String Reverse String
2,691
4,943 (avg. 1.8)
1,749 (65.0%)
169 (6.3%)
Leap Leap
1,705
5,872 (avg. 3.4)
1,179 (69.1%)
146 (8.6%)
Resistor Color Duo Resistor Color Duo
740
3,253 (avg. 4.4)
565 (76.4%)
77 (10.4%)
Secret Handshake Secret Handshake
391
3,551 (avg. 9.1)
249 (63.7%)
35 (9.0%)
Darts Darts
339
2,884 (avg. 8.5)
217 (64.0%)
28 (8.3%)
D&D Character D&D Character
314
1,877 (avg. 6.0)
172 (54.8%)
26 (8.3%)
Matching Brackets Matching Brackets
508
2,218 (avg. 4.4)
275 (54.1%)
39 (7.7%)
Proverb Proverb
411
1,272 (avg. 3.1)
282 (68.6%)
32 (7.8%)
Resistor Color Trio Resistor Color Trio
337
2,110 (avg. 6.3)
209 (62.0%)
32 (9.5%)
Sieve Sieve
258
1,426 (avg. 5.5)
158 (61.2%)
20 (7.8%)
Grep Grep
422
1,479 (avg. 3.5)
144 (34.1%)
30 (7.1%)
Tournament Tournament
186
1,315 (avg. 7.1)
79 (42.5%)
14 (7.5%)
Bowling Bowling
153
595 (avg. 3.9)
58 (37.9%)
9 (5.9%)
OCR Numbers OCR Numbers
135
480 (avg. 3.6)
49 (36.3%)
2 (1.5%)
Clock Clock
198
1,416 (avg. 7.2)
102 (51.5%)
6 (3.0%)
Markdown Markdown
184
449 (avg. 2.4)
55 (29.9%)
9 (4.9%)
Rectangles Rectangles
103
650 (avg. 6.3)
28 (27.2%)
2 (1.9%)
House House
181
1,153 (avg. 6.4)
91 (50.3%)
7 (3.9%)
Nucleotide Count Nucleotide Count
385
1,275 (avg. 3.3)
276 (71.7%)
34 (8.8%)
Rotational Cipher Rotational Cipher
144
622 (avg. 4.3)
84 (58.3%)
6 (4.2%)
Binary Search Binary Search
160
812 (avg. 5.1)
78 (48.8%)
14 (8.8%)
Kindergarten Garden Kindergarten Garden
95
244 (avg. 2.6)
41 (43.2%)
1 (1.1%)
Robot Simulator Robot Simulator
108
392 (avg. 3.6)
56 (51.9%)
4 (3.7%)
Run-Length Encoding Run-Length Encoding
113
796 (avg. 7.0)
57 (50.4%)
6 (5.3%)
Transpose Transpose
103
683 (avg. 6.6)
38 (36.9%)
1 (1.0%)
Yacht Yacht
90
275 (avg. 3.1)
38 (42.2%)
1 (1.1%)
Poker Poker
102
77 (avg. 0.8)
26 (25.5%)
1 (1.0%)
Two Bucket Two Bucket
98
116 (avg. 1.2)
28 (28.6%)
2 (2.0%)
Wordy Wordy
88
299 (avg. 3.4)
32 (36.4%)
1 (1.1%)
Rail Fence Cipher Rail Fence Cipher
92
92 (avg. 1.0)
27 (29.3%)
3 (3.3%)
Difference of Squares Difference of Squares
391
882 (avg. 2.3)
289 (73.9%)
22 (5.6%)
Prime Factors Prime Factors
130
411 (avg. 3.2)
76 (58.5%)
7 (5.4%)
Triangle Triangle
298
1,054 (avg. 3.5)
180 (60.4%)
13 (4.4%)
All Your Base All Your Base
121
637 (avg. 5.3)
50 (41.3%)
4 (3.3%)
Gigasecond Gigasecond
325
506 (avg. 1.6)
230 (70.8%)
11 (3.4%)
ISBN Verifier ISBN Verifier
161
489 (avg. 3.0)
96 (59.6%)
5 (3.1%)
Pascal's Triangle Pascal's Triangle
83
203 (avg. 2.4)
32 (38.6%)
3 (3.6%)
Diffie-Hellman Diffie-Hellman
90
110 (avg. 1.2)
33 (36.7%)
1 (1.1%)
Rational Numbers Rational Numbers
73
56 (avg. 0.8)
23 (31.5%)
1 (1.4%)
Variable Length Quantity Variable Length Quantity
72
44 (avg. 0.6)
23 (31.9%)
1 (1.4%)
RNA Transcription RNA Transcription
345
656 (avg. 1.9)
267 (77.4%)
14 (4.1%)
Anagram Anagram
266
964 (avg. 3.6)
175 (65.8%)
9 (3.4%)
Isogram Isogram
194
472 (avg. 2.4)
129 (66.5%)
7 (3.6%)
Phone Number Phone Number
259
694 (avg. 2.7)
166 (64.1%)
8 (3.1%)
Protein Translation Protein Translation
114
374 (avg. 3.3)
63 (55.3%)
3 (2.6%)
Word Count Word Count
257
1,253 (avg. 4.9)
130 (50.6%)
10 (3.9%)
Diamond Diamond
141
169 (avg. 1.2)
69 (48.9%)
2 (1.4%)
Sublist Sublist
103
243 (avg. 2.4)
48 (46.6%)
1 (1.0%)
Beer Song Beer Song
140
777 (avg. 5.6)
74 (52.9%)
5 (3.6%)
Queen Attack Queen Attack
99
274 (avg. 2.8)
48 (48.5%)
1 (1.0%)
Twelve Days Twelve Days
119
287 (avg. 2.4)
54 (45.4%)
2 (1.7%)
Pig Latin Pig Latin
79
94 (avg. 1.2)
28 (35.4%)
1 (1.3%)
Crypto Square Crypto Square
69
157 (avg. 2.3)
24 (34.8%)
1 (1.4%)
Food Chain Food Chain
82
91 (avg. 1.1)
26 (31.7%)
2 (2.4%)
Meetup Meetup
61
37 (avg. 0.6)
18 (29.5%)
1 (1.6%)
Spiral Matrix Spiral Matrix
68
28 (avg. 0.4)
18 (26.5%)
1 (1.5%)
Largest Series Product Largest Series Product
97
267 (avg. 2.8)
49 (50.5%)
2 (2.1%)
Series Series
122
297 (avg. 2.4)
67 (54.9%)
6 (4.9%)
Collatz Conjecture Collatz Conjecture
294
414 (avg. 1.4)
211 (71.8%)
15 (5.1%)
Space Age Space Age
115
256 (avg. 2.2)
64 (55.7%)
4 (3.5%)
Square Root Square Root
104
203 (avg. 2.0)
67 (64.4%)
4 (3.8%)
Say Say
83
51 (avg. 0.6)
29 (34.9%)
0 (0.0%)
Pythagorean Triplet Pythagorean Triplet
79
277 (avg. 3.5)
28 (35.4%)
3 (3.8%)
Change Change
98
102 (avg. 1.0)
22 (22.4%)
1 (1.0%)
Knapsack Knapsack
72
63 (avg. 0.9)
20 (27.8%)
2 (2.8%)
Allergies Allergies
131
462 (avg. 3.5)
66 (50.4%)
3 (2.3%)
Perfect Numbers Perfect Numbers
109
531 (avg. 4.9)
56 (51.4%)
2 (1.8%)
Sum of Multiples Sum of Multiples
121
511 (avg. 4.2)
60 (49.6%)
2 (1.7%)
Roman Numerals Roman Numerals
159
315 (avg. 2.0)
87 (54.7%)
4 (2.5%)
Nth Prime Nth Prime
87
119 (avg. 1.4)
25 (28.7%)
4 (4.6%)
Palindrome Products Palindrome Products
68
214 (avg. 3.1)
17 (25.0%)
0 (0.0%)
Simple Cipher Simple Cipher
72
115 (avg. 1.6)
18 (25.0%)
0 (0.0%)
Affine Cipher Affine Cipher
116
159 (avg. 1.4)
50 (43.1%)
2 (1.7%)
Forth Forth
81
51 (avg. 0.6)
22 (27.2%)
1 (1.2%)
Satellite Satellite
63
38 (avg. 0.6)
12 (19.0%)
0 (0.0%)
List Ops List Ops
59
222 (avg. 3.8)
22 (37.3%)
1 (1.7%)
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