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Questions tagged [prompt]

23 questions
11
votes
3 answers

Bash: how to know if the last command's output ends with a newline or not?

Most of the time the output of a command ends with the newline character. But sometimes it does not, so the next shell prompt is printed in the same line together with the output. Example: root@hostname [~] # echo -n hello helloroot@hostname [~]…
GetFree
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8
votes
1 answer

Bash custom prompt breaking wrapping of long command lines

I have a custom bash prompt that colours my username, hostname and current working directory. The colours display correctly, however when I type a command line that needs to wrap, the terminal does not start a new line, and writes over the beginning…
Murali Suriar
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7
votes
3 answers

Getting more helpful tab completion prompts in bash?

Let's say I have a directory with a few files in it like this: $ ls file1 file2 file3 And I want to do some tab completion in bash: $ cat file file1 file2 file3 I remember seeing someone doing tab completion and the shell bolded the…
Amandasaurus
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5
votes
4 answers

Prompt customization: how to detect when there is no tty

I have a customized prompt with colors (using tput) and every time I start a non-interactive session in the server I get a bunch of errors. For instance if I start a non-interactive session like this: ssh root@hostname6 "echo 'hello' ; echo…
GetFree
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4
votes
9 answers

Is there a way to delay a forced reboot?

I realize this is more appropriate for our company's admin group to field. However, pretend they are unresponsive just for the sake of discussion =) If my system is prompting me to reboot now or in a set time (say in 15 mins) is there a way to…
jduff
3
votes
1 answer

Trouble using powershell output as a variable in batch file

I can manually run this command from a Windows Command Prompt: powershell (new-timespan -start 01/01/2000 -end (get-date)).days % 14 And it returns a number from 0 to 13. I want to use this result in a batch file, but this line gives an error…
pigeonpigeon
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3
votes
5 answers

Who decided the default shell prompts in Linux?

There are a couple of defaults in the standard Linux shell, bash, that I think need some history brought out. This question is about the prompt. The default prompt in bash in many Linux distros is [\u@\h \W]\$ For those who can't parse that, it…
staticsan
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2
votes
1 answer

PS variable for expansion of word designators

Is there an undocumented PS variable like PS2 that bash would show when it replaces a word designator into its actual value? I think it would help clarify where the command ends and where the execution begins. Example: I run an ls and a cat. cat…
Juanma
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2
votes
1 answer

How to display user@hostname in SSHD password prompt

When I SSH to a server, the prompt sometimes displays my user and the hostname of the server: xavier@local:~$ ssh server1 xavier@server1's password: Sometimes all I get is Password: xavier@local:~$ ssh server2 Password: Which is less convenient…
Calimo
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2
votes
4 answers

How can I copy sanely (not using "Mark") from the Windows command prompt

Given a very long single command at the command line in Windows, I'd like to simply copy that command into clipboard. I am just looking for the ubiquitous Shift-End , Ctrl-C type functionality almost all editors have. I DON'T want to use Mark (yes,…
Kevin Radcliffe
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2
votes
4 answers

How to lock user in a shell script program?

Let's say I have a Linux OS without desktop environment. After the PC finish boot up, it will directly show the shell terminal to the user. I plan to write a shell script program and make it automatically start everytime after the PC finish boot up,…
kwc1
2
votes
3 answers

What's wrong with this bash prompt?

I use the following entry in ~/.bashrc file to colorize the prompt and display current branch of git repository: PS1='\[\e[1;32m\]\[\u@\h\]\[\e[m\] \[\w\]\[\e[1;1m\]\[$(__git_ps1 " (%s)")\] \[\e[1;1m\]\[$\] \[\e[m\]' This works almost fine, except…
takeshin
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2
votes
4 answers

a unix single-line editor/prompt?

I've got a bash script that would be nicer if when I prompt the user, rather than just asking for input, if it provided a line that the user could edit (but a full text editor would be overkill, it's only one line) What tool provides this? dialog's…
jes5199
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1
vote
3 answers

Ansible - Is it possible to skip the execution of a role?

Here is my main playbook, which launch the roles listed below --- - hosts: slaves roles: - ntp - nmap - tcpdump - unattended-upgrades - traceroute - apache - mysql I would like to let the user decide if…
Osh
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1
vote
1 answer

Change login prompt on Debian server

I need to change a telnet login prompt of Debian 4.0 server. Currently it is of form: hostname login: I need to have just: login: Apparently chnages to /etc/issue.net only influence what is displayed before "login prompt" not the actual…
JasonPa112
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