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edited Jul 11, 2019 at 11:18

grammar

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edited Jul 11, 2019 at 11:05

When I want to ask for a password in a bash script, I do that :

read -s

...but when I run bash in POSIX mode, with sh, the option don't exists -s option is rejected:

$ read -s
sh: 1: read: Illegal option -s

How do I securely ask for an input with a POSIX-compliant command ?

When I want to ask for a password in a bash script, I do that :

read -s

...but when I run bash in POSIX mode, with sh, the option don't exists :

$ read -s
sh: 1: read: Illegal option -s

How do I securely ask for an input with a POSIX-compliant command ?

When I want to ask for a password in a bash script, I do that :

read -s

...but when I run bash in POSIX mode, with sh, the -s option is rejected:

$ read -s
sh: 1: read: Illegal option -s

How do I securely ask for an input with a POSIX-compliant command ?

Tweeted twitter.com/#!/StackUnix/status/631942495811842048

occurred Aug 13, 2015 at 21:36

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asked Aug 13, 2015 at 10:55

Ask for a password in POSIX-compliant shell?

When I want to ask for a password in a bash script, I do that :

read -s

...but when I run bash in POSIX mode, with sh, the option don't exists :

$ read -s
sh: 1: read: Illegal option -s

How do I securely ask for an input with a POSIX-compliant command ?

bash scripting

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