If I use man command just in Terminal, it works well.
However, under tmux, it will print out No manual entry for any command. For example:
$man find
No manual entry for find
Any idea? Thanks in advance.
Found out that $MANPATH is different under tmux. It misses some paths like /usr/share/man.
Change $MANPATH under tmux will work.
Related
I am using bash and mintty. Ctrl-L does not clear the screen like it should:
0920:~$ ^L
-bash: $'\f': command not found
I get the same error if I've ssh-ed into a linux box via my cygwin mintty.
Sounds like an issue with your readline mappings in /etc/inputrc or ~/.inputrc. try adding this:
"\C-l": clear-screen
Whenever I start up Terminal on my Macbook Air, I get this message:
-bash: ≈: command not found
How do I fix this error? I'm running Mavericks version 10.9.4 if that helps at all.
EDIT: Fixed this error by using the bash -x method, found out it was a random '≈' character left in ~/.profile that needed to be deleted. Thanks for the answers :)
To debug you can try this:
bash -x -l
(the -l might not be needed).
I definitely agree with Barmar, there is something in your bash startup scripts.
There is not a great way to do this, but here is the protocol to remedy it.
Confirm it is your bash profile by first killing the process with a control + C if it is hung. Then do a source ~/.bash_profile and see if you get that same error.
Backup your bash profile cp ~/.bash_profile bashprofile.txt
Then comment out part of your bash profile. With text wrangler you can do a command + slash.
Save, then do a source ~/.bash_profile and see if the error still prints.
Repeat with different areas of the script until you have isolated the infected region.
I want to clearscreen from bash in a cygwin terminal.
I have tried
cmd /c cls
echo -e "^V^L"
echo -e "\014"
None of these work - they all give a "linefeed". Pressing CTRL+L does work - but I want to call it from a Bash script.
Any ideas?
Or you could try ctrl-L :)
That should work in most emulated terminals as well.
There is two ways:
Using shortcuts
Alt+F8 to clear screen and Ctrl-L to skip page
Using Clear alias
Go to: cygwin\home\USER\.bashrc
Open .bashrc file and put this alias alias clear='printf "\033c"'.
restart your cygwin terminal.
to clear your screen use clear command.
If it's contained in your cygwin install (run Cygwin's setup and make sure you have the package called "ncurses"), try
tput clear
I have this in my ~/.bashrc:
alias clear='printf "\033c"'
likewise, printf "\033c" clears the screen from within a bash script.
Alt+F8 to clear screen and Ctrl-L to skip page
Using shortcuts (for mitty console users)
Alt+F8 to clear screen and Ctrl-L to skip page
Using sh bash adding a command
If you use console2 or same consoles, you can add this sh code as without extension this location : ..\cygwin64\bin\
cls and /or clear (without extension)
#!/bin/sh
printf "\033c"
Then you can use cls and|or clear in cygwin command.
I was trying to do something similar and upon researching I found the above answers, I tried to follow some of the above solutions, I added the line to .bashrc, but it did not accept the function, I tweaked around and found out another solution...it basically executes the ' printf "\33c" but instead of tweaking the .bash.rc file, you simply go to the directory - /cygwin/bin ,
Write the following command :- printf "\033c"
And save it with the filename "cls" , in the bin directory, ensure that there is NO EXTENSION to the file, thus it will have the type "file" ..save it,open the shell and the command will run...
I found this method by playing around with msys and cygwin, I have both on my windows PC and turns out msys supports the "cls" command, I found a file with the same name in it's bin directory and copied it to the cygwin's bin folder and edited the file with the printf function and this worked like a charm...hope this helps.
I am trying to setup my workstation in such a way that tmux is run for each terminal (xterm, gnome-terminal, ...) that is launched. I was thinking to add tmux to the .bashrc; problem is that if I launch bash twice for whatever reason, it start a second tmux inside the current tmux.
So:
is there a way to detect, maybe from the .bashrc, that the current bash is the 'first' one and not a second one launched in the same terminal?
any other good ideas / best practices / bash design patterns?
You can add the following to your .bash_profile:
SHELL=tmux
This is the first place xterm checks for the command to run if none is given on the command line.
Combine the two previous answers:
alias xterm='SHELL=tmux xterm'
You get the desired behavior when starting just xterm, but you can still use xterm for other operations, such as xterm top.
What about aliasing xterm to xterm tmux?
Just add the following line to your .bashrc:
alias xterm='xterm tmux'
How can I reload file .bash_profile from the command line?
I can get the shell to recognize changes to .bash_profile by exiting and logging back in, but I would like to be able to do it on demand.
Simply type source ~/.bash_profile.
Alternatively, if you like saving keystrokes, you can type . ~/.bash_profile.
. ~/.bash_profile
Just make sure you don't have any dependencies on the current state in there.
Simply type:
. ~/.bash_profile
However, if you want to source it to run automatically when terminal starts instead of running it every time you open terminal, you might add . ~/.bash_profile to ~/.bashrc file.
Note:
When you open a terminal, the terminal starts bash in (non-login) interactive mode, which means it will source ~/.bashrc.
~/.bash_profile is only sourced by bash when started in interactive login mode. That is typically only when you login at the console (Ctrl+Alt+F1..F6), or connecting via ssh.
If you don't mind losing the history of your current shell terminal, you could also do
bash -l
That would fork your shell and open up another child process of bash. The -l parameter tells Bash to run as a login shell. This is required, because .bash_profile will not run as a non-login shell. For more information about this, read here.
If you want to completely replace the current shell, you can also do:
exec bash -l
The above will not fork your current shell, but replace it completely, so when you type exit it will completely terminate, rather than dropping you to the previous shell.
You can also use this command to reload the ~/.bash_profile for that user. Make sure to use the dash.
su - username
I like the fact that after you have just edited the file, all you need to do is type:
. !$
This sources the file you had just edited in history. See What is bang dollar in bash.
You just need to type . ~/.bash_profile.
Refer to What does 'source' do?.
Save the .bash_profile file
Go to the user's home directory by typing cd
Reload the profile with . .bash_profile
Add alias bashs="source ~/.bash_profile" into your Bash file.
So you can call bashs the next time.
If the .bash_profile file does not exist, you can try to run the following command:
. ~/.bashrc
or
source ~/.bashrc
instead of .bash_profile.
You can find more information about bashrc.
Use
alias reload!=". ~/.bash_profile"
Or if want to add logs via functions:
function reload! () {
echo "Reloading bash profile...!"
source ~/.bash_profile
echo "Reloaded!!!"
}
While using source ~/.bash_profile or the previous answers works, one thing to mention is that this only reloads your Bash profile in the current tab or session you are viewing. If you wish to reload your bash profile on every tab/shell, you need to enter this command manually in each of them.
If you use iTerm, you can use CMD⌘ + Shift + I to enter a command into all current tabs. For terminal it may be useful to reference this issue;
I use Debian and I can simply type exec bash to achieve this. I can't say if it will work on all other distributions.
I am running macOS v10.12 (Sierra) and was working on this for a while (trying all recommended solutions). I became confounded, so I eventually tried restarting my computer! It worked.
My conclusion is that sometimes a hard reset is necessary.
Simply re-sourcing the file won't "reload" in the sense that something is first unloaded, then loaded again. If that is what you want you can do:
hash -r && _SHOW_MESSAGES=1 exec -a -bash bash