Q
Detector Library
Shell detectors (16/16)
Avoid LS-GrepSudo Redirect MisuseIncorrectly used escape sequencesExpr ModernizationUnquoted Special ParametersSingle-Iteration LoopPrefer Find Over LSAvoid Complex Logical ExpressionsUnquoted Array ExpansionPS Grep AlternativeUnquoted Find PatternsUnnecessary Variable ExpansionUse of if and thenRead Lines with While LoopIncorrect Quoting in Trap CommandsCommand Substitution Syntax
Code Quality detectors
Avoid LS-Grep
Prefer globs or loops over ls-grep.
Incorrectly used escape sequences
The problem involves replacing literal '\t' with actual tab characters using the command $(printf '\t').
Expr Modernization
Replace 'expr' with modern shell constructs.
Unquoted Special Parameters
Use quoted special parameters to prevent word splitting and globbing.
Single-Iteration Loop
Ensure for loops iterate over multiple values.
Prefer Find Over LS
Use 'find' for file operations instead of 'ls'.
Avoid Complex Logical Expressions
Don't use' A && B || C' as a substitute for if-then-else constructs.
Unquoted Array Expansion
Missing quotes around array expansion.
PS Grep Alternative
Use pgrep for process lookup.
Unquoted Find Patterns
Lack of quotes around pattern arguments in 'find' command.
Unnecessary Variable Expansion
Avoid unnecessary dollar signs in arithmetic expressions.
Use of if and then
The problem involves checking the exit code or output of a command in a shell script using different conditional constructs.
Read Lines with While Loop
Use while loop for line-by-line processing.
Incorrect Quoting in Trap Commands
Using single quotes instead of double quotes in trap commands to prevent premature expansion of variables and commands.
Command Substitution Syntax
Use '$(...)' instead of backticks for command substitution.