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  1. #!/bin/bash
  2. # your code goes here
  3.  
  4. echo "enter a number"
  5. read n
  6.  
  7. if [ "$n" -lt 0 ]; then
  8.   echo "factorial is not defined for negative numbers"
  9.   exit 1
  10. fi
  11.  
  12. fact=1
  13. i="$n"
  14.  
  15. while [ "$i" -gt 1 ]; do
  16.   fact=$((fact * i))
  17.   i=$((i - 1))
  18. done
  19.  
  20. echo "the factorial of the given number is $fact"
Success #stdin #stdout #stderr 0.01s 5284KB
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 7: [: : integer expression expected
./prog.sh: line 15: [: : integer expression expected
https://ideone.com/yg7R1i
language:
Bash (bash 5.0.3)
created:
3 days ago
visibility:
public

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