{"record":{"id":"2ee8d726c2fde6d0","repo":"uutils/coreutils","slug":"trying-to-write-to-a-split-that-was-not-created","errorCode":null,"errorMessage":"trying to write to a split that was not created","messagePattern":"trying to write to a split that was not created","errorType":"panic","errorClass":null,"httpStatus":null,"severity":"error","filePath":"src/uu/csplit/src/csplit.rs","lineNumber":302,"sourceCode":"\n    /// The current split will not keep any of the read input lines.\n    fn as_dev_null(&mut self) {\n        self.dev_null = true;\n    }\n\n    /// Writes the line to the current split.\n    /// If `self.dev_null` is true, then the line is discarded.\n    ///\n    /// # Errors\n    ///\n    /// Some [`io::Error`] may occur when attempting to write the line.\n    fn writeln(&mut self, line: &str) -> io::Result<()> {\n        if !self.dev_null {\n            if let Some(ref mut current_writer) = self.current_writer {\n                let bytes = line.as_bytes();\n                current_writer.write_all(bytes)?;\n                self.size += bytes.len();\n            } else {\n                panic!(\"{}\", translate!(\"csplit-write-split-not-created\"))\n            }\n        }\n        Ok(())\n    }\n\n    /// Perform some operations after completing a split, i.e., either remove it\n    /// if the [`options::ELIDE_EMPTY_FILES`] option is enabled, or print how much bytes were written\n    /// to it if [`options::QUIET`] is disabled.\n    ///\n    /// # Errors\n    ///\n    /// Returns an error if flushing the writer fails.\n    fn finish_split(&mut self) -> Result<(), CsplitError> {\n        if !self.dev_null {\n            // Flush the writer to ensure all data is written and errors are detected\n            if let Some(ref mut writer) = self.current_writer {\n                let file_name = self.options.split_name.get(self.counter - 1);","sourceCodeStart":284,"sourceCodeEnd":320,"githubUrl":"https://github.com/uutils/coreutils/blob/9ff4114e82c8fb80420fd4fb6a319bd3227095e0/src/uu/csplit/src/csplit.rs#L284-L320","documentation":"Error \"trying to write to a split that was not created\" thrown in uutils/coreutils.","triggerScenarios":"Occurs when csplit tries to write output to a split file that was never created, typically because the split pattern matched no input or an internal split counter advanced past created files.","commonSituations":"Using csplit with a regex or line-number pattern that matches beyond the end of input, or with repeat counts larger than the number of matches.","solutions":["Create the split output file before writing to it; ensure the split counter is incremented only after a successful creation.","Check available disk space and directory permissions so that creating a new split file cannot silently fail."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"9ff4114e82c8fb80420fd4fb6a319bd3227095e0","analyzedAt":"2026-08-19T21:43:27.871Z","contentChangedAt":"2026-08-19T21:43:27.871Z","schemaVersion":2},"datasetVersion":"2026-09-14T00:17:10.932Z"}