1007
Error prone
Error
Remove space after = if trying to assign a value (for empty string
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Shell rules
Bash, zsh, ksh: regardless what Shell you use, Codiga got you covered. With hundreds of rules, the Codiga Static Engine checks for any issue in your shell script and surfaces issues in your Shell codebase.
1010
Error prone
Error
Use semicolon or linefeed before 'fi' (or quote to make it literal).
1012
Error prone
Error
\\r is just literal 'r' here. For carriage return
1014
Error prone
Error
Use 'if cmd; then ..' to check exit code
1078
Error prone
Error
Did you forget to close this double quoted string?
1102
Error prone
Error
Shells disambiguate $(( differently or not at all. For $(command substition)
1105
Error prone
Error
Shells disambiguate (( differently or not at all. For subshell
1110
Error prone
Error
This is a unicode quote. Delete and retype it (or quote to make literal).
1111
Error prone
Error
This is a unicode quote. Delete and retype it (or ignore/singlequote for literal).
2010
Error prone
Error
Don't use ls | grep. Use a glob or a for loop with a condition to allow non-alphanumeric filenames.
2011
Error prone
Error
Use 'find .. -print0 | xargs -0 ..' or 'find .. -exec .. +' to allow non-alphanumeric filenames.
2024
Error prone
Error
sudo doesn't affect redirects. Use sudo cat file | ..
2027
Error prone
Error
The surrounding quotes actually unquote this. Remove or escape them.
2033
Error prone
Error
Shell functions can't be passed to external commands.
2036
Error prone
Error
If you wanted to assign the output of the pipeline
2049
Error prone
Error
"=~ is for regex, but this looks like a glob. Use = instead."
2050
Error prone
Error
This expression is constant. Did you forget the $ on a variable?
2060
Error prone
Error
Quote parameters to tr to prevent glob expansion.
2062
Error prone
Error
Quote the grep pattern so the shell won't interpret it.
2063
Error prone
Error
Grep uses regex
2069
Error prone
Error
To redirect stdout+stderr
2087
Error prone
Error
Quote 'VS\_CMDS' to make here document expansions happen on the server side rather than on the client.
2088
Error prone
Error
Tilde does not expand in quotes. Use $HOME.
2092
Error prone
Error
Remove backticks to avoid executing output.
2093
Error prone
Error
Remove exec " if script should continue after this command."
2097
Error prone
Error
This assignment is only seen by the forked process.
2098
Error prone
Error
This expansion will not see the mentioned assignment.
2100
Error prone
Error
Use $((..)) for arithmetics
2113
Error prone
Error
function' keyword is non-standard. Use 'foo()' instead of 'function foo'.
2115
Error prone
Error
Use ${var:?}" to ensure this never expands to /usr ."
2124
Error prone
Error
Assigning an array to a string! Assign as array
2125
Error prone
Error
Brace expansions and globs are literal in assignments. Quote it or use an array.
2139
Error prone
Error
This expands when defined
2146
Error prone
Error
This action ignores everything before the -o. Use \\( \\) to group.
2156
Error prone
Error
Injecting filenames is fragile and insecure. Use parameters.
2165
Error prone
Error
This nested loop overrides the index variable of its parent.
2167
Error prone
Error
This parent loop has its index variable overridden.
2169
Error prone
Error
Not supported in dash
2171
Error prone
Error
Found trailing ] outside test. Missing [?
2172
Error prone
Error
Trapping signals by number is not well defined. Prefer signal names.
2174
Error prone
Error
When used with -p
2176
Error prone
Error
time' is undefined for pipelines. time single stage or bash -c instead.
2178
Error prone
Error
Variable was used as an array but is now assigned a string.
2179
Error prone
Error
Use array+=(item") to append items to an array."
2183
Error prone
Error
This format string has 1 variables
2184
Error prone
Error
Quote arguments to unset so they're not glob expanded.
2187
Error prone
Error
Ash scripts will be checked as Dash. Add '# shellcheck shell=dash' to silence.
2188
Error prone
Error
This redirection doesn't have a command. Move to its command (or use 'true' as no-op).
2190
Error prone
Error
Elements in associative arrays need index
2193
Error prone
Error
The arguments to this comparison can never be equal. Make sure your syntax is correct.
2194
Error prone
Error
This word is constant. Did you forget the $ on a variable?
2195
Error prone
Error
This pattern will never match the case statement's word. Double check them.
2210
Error prone
Error
This is a file redirection. Was it supposed to be a comparison or fd operation?
2211
Error prone
Error
This is a glob used as a command name. Was it supposed to be in ${..}
2213
Error prone
Error
getopts specified -v
2214
Error prone
Error
This case is not specified by getopts.
2215
Error prone
Error
This flag is used as a command name. Bad line break or missing [ .. ]?
2216
Error prone
Error
Piping to 'rm', a command that doesn't read stdin. Wrong command or missing xargs?
2217
Error prone
Error
Redirecting to 'true'
2220
Error prone
Error
Invalid flags are not handled. Add a *) case.
2221
Error prone
Error
This pattern always overrides a later one.
2222
Error prone
Error
This pattern never matches because of a previous pattern.
2226
Error prone
Error
This ln has no destination. Check the arguments
2232
Error prone
Error
Can't use sudo with builtins like cd. Did you want sudo sh -c .. instead?
2057
Error prone
Error
Detect unknown binary operator