Fixing Claude Code (1.0.51/1.0.45) in Git Bash

1.0.72 works well among all my terminals in Windows and Linux without any hacks. So please forget the fix in this article and try 1.0.72!
for version 1.0.51 or newer, you can simply add a new environment variable with CLAUDE_CODE_GIT_BASH_PATH=C:\Program Files\git\bin\bash.exe using Edit environment variables for your account feature on windows.

However, I stick with v1.0.45 for now, as I noticed 1.0.51 no longer support paste image in gitbash, which is a pity!

I just noticed this hack only works with version 1.0.45, so please stick with version 1.0.45 for now until we found another hack :D

Claude Code fails in Git Bash with path errors like:

Error: /usr/bin/bash: line 1: C:UsersDavid.WeiAppDataLocalTemp/claude-shell-snapshot-6ea5: No such file or directory

Root cause: os.tmpdir() returns Windows paths, Git Bash expects Unix paths.

Solution: Patch the CLI directly with sed.

# Create ~/bin/c
#!/bin/bash
REAL_CLAUDE=$(which claude)
basedir=$(dirname "$REAL_CLAUDE")
case `uname` in
    *CYGWIN*|*MINGW*|*MSYS*)
        if command -v cygpath > /dev/null 2>&1; then
            basedir=`cygpath -w "$basedir"`
        fi
    ;;
esac

CLAUDE_DIR="$basedir/node_modules/@anthropic-ai/claude-code"
CLI_FILE="$CLAUDE_DIR/cli.js"
BACKUP_FILE="$CLI_FILE.original"

# Backup once
if [ ! -f "$BACKUP_FILE" ]; then
    cp "$CLI_FILE" "$BACKUP_FILE"
fi

# Patch and run
cp "$BACKUP_FILE" "$CLI_FILE"
sed -i 's/\b\w\+\.tmpdir()/\"\/tmp\"/g' "$CLI_FILE"

cd "$CLAUDE_DIR"
exec node "cli.js" "$@"

chmod +x ~/bin/c
echo 'export PATH="$HOME/bin:$PATH"' >> ~/.bashrc

Now works:

c doctor
c --version

The regex catches minified variable names. Patches fresh every run, so updates don't break it.

Comments

  2. Markdown is allowed. HTML tags allowed: <strong>, <em>, <blockquote>, <code>, <pre>, <a>.