[issue]: VentoyPlugson.sh 113: Bad substitution

[lionslair]

Official FAQ

• I have checked the official FAQ.

Ventoy Version

1.0.79

What about latest release

Yes. I have tried the latest release, but the bug still exist.

BIOS Mode

Legacy BIOS Mode

Partition Style

MBR

Disk Capacity

32GB

Disk Manufacturer

Sandisk

Image file checksum (if applicable)

No response

Image file download link (if applicable)

No response

What happened?

Trying to use the plugin tool but I get this error contantly 113: Bad substitution

I just can not start the plugin.

I am running on popos 20.04

sudo sh VentoyPlugson.sh /dev/sda1 VentoyPlugson.sh: 113: Bad substitution

[ventoy]

What about sudo bash VentoyPlugson.sh /dev/sda1 ?

[lionslair]

Head of the file and the documentation says to yse sh

$ head VentoyPlugson.sh                                                                                                                                                                                        
╰─$ head VentoyPlugson.sh                                                                                                                                                                                        2 ↵
#!/bin/sh

. ./tool/ventoy_lib.sh

print_usage() {    
    echo 'Usage:  sudo sh VentoyPlugson.sh [OPTION] /dev/sdX'
    echo '  OPTION: (optional)'
    echo '   -H x.x.x.x  http server IP address (default is 127.0.0.1)'
    echo '   -P PORT     http server PORT (default is 24681)'
    echo '   -h          print this help'

That has started it though. The help even says to run sh?

[ventoy]

/bin/sh is linked to /bin/bash in many systems. What about in your PopOS?
Did you try sudo bash VentoyPlugson.sh /dev/sda1 ?

[lionslair]

/bin/sh is linked to /bin/bash in many systems. What about in your PopOS? Did you try sudo bash VentoyPlugson.sh /dev/sda1 ?

Yes that did work. I didn't run that as I thought it was going to run under sh not bash anyway

[ventoy]

Please try this new script. (download the attachment and extract the new VentoyPlugson.sh)
Just use sudo sh VentoyPlugson.sh /dev/sda1 to see whether it can work this time.

VentoyPlugson.zip

[lionslair]

Please try this new script. (download the attachment and extract the new VentoyPlugson.sh) Just use sudo sh VentoyPlugson.sh /dev/sda1 to see whether it can work this time.

VentoyPlugson.zip

Yes that works now.

Ventoy version in Disk: 1.0.79
Disk Partition Style  : MBR
Secure Boot Support   : NO
/dev/sda1 is mounted at /media/nathanr/Ventoy exfat
ventoy directory exist OK

===============================================================
  Ventoy Plugson Server is running ...
  Please open your browser and visit http://127.0.0.1:24681
===============================================================

################## Press Ctrl + C to exit #####################

[CollinDewey]

There's no guarantee that bash is located at /bin/bash. NixOS for example, doesn't put bash in /bin/bash. Thus using /usr/bin/env bash is generally a better solution than hard-coding the path for bash.

[ventoy]

@LegitMagic
That make sense. Maybe the following is better.

if [ "$1" = "__vbash__" ]; then
    shift
else
    exec /usr/bin/env bash $0 "__vbash__" "$@"    
fi