8000 `expr <some string> length` should fail · Issue #5560 · uutils/coreutils · GitHub
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expr <some string> length should fail #5560

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cakebaker opened this issue Nov 20, 2023 · 1 comment · Fixed by #5566
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expr <some string> length should fail #5560

cakebaker opened this issue Nov 20, 2023 · 1 comment · Fixed by #5566
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@cakebaker
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When running $ expr helloworld length, GNU expr fails with:

expr: syntax error: unexpected argument ‘length’

uutils expr, on the other hand, incorrectly returns 10, the length of the string helloworld.
@Luv-Ray
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Luv-Ray commented Nov 21, 2023

Similar errors with index and substr:
GNU:

$ expr aaa index a
expr: syntax error: unexpected argument ‘index’
$ expr abcd substr 1 2  
expr: syntax error: unexpected argument ‘substr’

uutils:

$ ./target/debug/expr aaa index a
1
$ ./target/debug/expr abcd substr 1 2
ab

@Luv-Ray Luv-Ray mentioned this issue Nov 21, 2023
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expr: check prefix operation Luv-Ray/coreutils
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@cakebaker @Luv-Ray
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