- Windows bash hide username and systemname how to#
- Windows bash hide username and systemname install#
Bash treats this as a group of commands, aggregating the output file descriptors so you can redirect all at once. It looks like this: your_command "Hello?" > /dev/nullįor output redirection to a file, you can direct both stdout and stderr to the same place very concisely, but only in bash: /your/first/command &> /dev/nullįinally, to do the same for a number of commands at once, surround the whole thing in curly braces. Redirect output to /dev/null, which accepts all output and does nothing with it. it closes stdout).Īlso beware that some commands may not handle a closed file descriptor particularly well ("write error: Bad file descriptor"), which is why the better solution may be to. It's easy to remember: >&2 redirects stdout to descriptor 2 (stderr), >&3 redirects stdout to descriptor 3, and >&- redirects stdout to a dead end (i.e. It'll look the same at first, but the latter creates a stray file in your working directory. If you close a file descriptor, you'll have to do so for every numbered descriptor, as &> (below) is a special BASH syntax incompatible with >&-: /your/first/command >&- 2>&-īe careful to note the order: >&- closes stdout, which is what you want to do &>- redirects stdout and stderr to a file named - (hyphen), which is not what what you want to do. Usually, output goes either to file descriptor 1 (stdout) or 2 (stderr). That looks like this: your_command "Is anybody listening?" >&. To eliminate output from commands, you have two options:Ĭlose the output descriptor file, which keeps it from accepting any more input.
Windows bash hide username and systemname how to#
I would like to know how to show same message while a set of commands are being executed. In case an error occurs then it should be shown to the user. How can I accomplish this task? I will definitely help to make the script more user friendly. Now I want to hide this from the user and instead show: Installing nano.
Userid : CentOS-6 Key (CentOS 6 Official Signing Key) Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6 Warning: rpmts_HdrFromFdno: Header V3 RSA/SHA256 Signature, key ID c105b9de: NOKEY The following will show up to the user who executed the Bash: Loaded plugins: fastestmirror
Windows bash hide username and systemname install#
How do I hide the output when Bash is executing commands?įor example, when Bash executes yum install nano I want to make my Bash scripts more elegant for the end user.
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