Batch to Shell Script Converter - Windows to Unix

Convert Windows Batch (.bat/.cmd) scripts to Unix Shell (.sh) scripts. Handles common commands, variables, conditionals. Free, browser-based, no uploads.

Batch Script Input (.bat/.cmd)

Shell Script Output (.sh)

Add explanatory comments

Add strict mode (set -e)

POSIX portable (/bin/sh)

Copied to clipboard

Related Tools

X12 to JSON Converter - ANSI EDI Parser

CSV to SQL INSERT Generator - Create Dat…

YAML to XML for SOAP & Legacy Integratio…

EDI to CSV - Convert EDI Messages to Spr…

CSV to iCalendar Converter - Create Cale…

vCard to JSON Converter - Contacts to JS…

View all Data converters →

Frequently Asked Questions

Batch scripts (.bat/.cmd) run on Windows using cmd.exe, while Shell scripts (.sh) run on Unix/Linux/macOS using bash or other shells. They have different syntax for variables, conditionals, and commands.

Most common commands can be converted (echo, if, set, del, copy, etc.), but some Windows-specific commands (like reg, sc, net) have no direct Shell equivalent. The converter adds warning comments for such cases.

Batch variables like %VAR% or !VAR! become $VAR or ${VAR} in Shell. SET VAR=value becomes VAR="value" with proper quoting. Environment variables are handled similarly but may need export.

Shell doesn't have GOTO. The converter wraps labeled sections in functions and converts GOTO calls to function calls. This works for simple cases but complex flow control may need manual refactoring.

IF EXIST becomes if [ -e ... ], IF NOT EXIST becomes if [ ! -e ... ], string comparisons use [ ... = ... ], and numeric comparisons use [ ... -eq ... ]. Nested IFs are preserved with proper indentation.

Yes. %~dp0 (script directory) becomes $(dirname "$0"), %CD% becomes $(pwd), and %TEMP% becomes $TMPDIR or /tmp. Command-line arguments %1-%9 become $1-$9.

Batch's IF ERRORLEVEL and %ERRORLEVEL% convert to Shell's $? (exit status). However, Shell error handling is more nuanced - the converter adds comments suggesting set -e for strict error checking.

Basic FOR loops are converted to Shell for loops with similar syntax. However, Batch's complex FOR /F tokenization and FOR /R recursion require manual review and may need find, xargs, or awk in Shell.

This tool provides a solid starting point for migration, converting 70-80% of common patterns automatically. Always review and test the output, especially for complex scripts with GOTO, nested loops, or Windows-specific commands.

Use this converter to understand the Shell equivalents of your Batch commands. For true cross-platform support, consider rewriting in Python or Node.js, which work identically on both Windows and Unix systems.

Manual Review Required

Related Tools