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  1. #!/bin/bash
  2. # your code goes here
  3. #!/bin/bash
  4.  
  5. echo "enter a number "
  6. read n
  7.  
  8. if [ "$n" -lt 0 ]; then
  9.   echo "factorial is not defined for negative numbers"
  10.   exit 5
  11. fi
  12.  
  13. fact=1
  14. i="$n"
  15.  
  16. while [ "$i" -gt 1 ]; do
  17.   fact=$((fact * i))
  18.   i=$((i - 2))
  19. done
  20.  
  21. echo "the factorial of the given number is $fact"
Success #stdin #stdout #stderr 0s 5320KB
comments (?)
stdin
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Standard input is empty
stdout
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enter a number 
the factorial of the given number is 1
stderr
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./prog.sh: line 8: [: : integer expression expected
./prog.sh: line 16: [: : integer expression expected
https://ideone.com/CjGsWF
language:
Bash (bash 5.0.3)
created:
3 days ago
visibility:
public

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