80
votes
Standard place for user defined bash_completion.d scripts?
For non-XDG environments and bash-completion <= 2.8
Here is how a local user can have a working ~/.bash_completion.d/ directory.
edit file: nano ~/.bash_completion, add the following:
for bcfile ...
- 961
26
votes
Standard place for user defined bash_completion.d scripts?
The FAQ has been updated. There is now a standard place for local completions.
Q. Where should I install my own local completions?
A. Put them in the completions subdir of $...
- 381
20
votes
Accepted
bashrc not loaded in /bin/bash shell
the ~/.bashrc file is loaded for interactive non-login shells, that's why running /bin/bash from ssh works as you expect.
For login shells (amongst others) ~/.bash_profile is read. Typically your ~/....
- 116k
18
votes
Accepted
~/.bashrc is NOT sourced on ssh 'command'
Adding my bit to the old thread for information because the accepted answer is not the real reason for .bashrc not being read for an ssh command. I got the hint after reading this answer.
The second ...
15
votes
Where does the bash PATH on CentOS 7 get /usr/local/bin from?
Other people have asked the same thing on the CentOS bug tracker. The earliest post I found was this one.
/usr/local/bin is hardcoded in /bin/bash.
https://bugs.centos.org/view.php?id=10200
https://...
- 3,104
11
votes
Straight forward way to run ssh-agent and ssh-add on login via SSH?
Another alternative is to add this to your .bashrc. This has the same advantage as Erik's answer (ensuring a single instance) but doesn't require an additional package.
# SSH Agent should be running, ...
- 211
9
votes
Standard place for user defined bash_completion.d scripts?
At least bash-completion 2.8 and later enable option to place local Bash completions in directory
${BASH_COMPLETION_USER_DIR:-${XDG_DATA_HOME:-$HOME/.local/share}/bash-completion}/completions
The ...
- 193
9
votes
Straight forward way to run ssh-agent and ssh-add on login via SSH?
One alternative is to use Funtoo's Keychain. Then you can stick this one-liner in your bash shell:
eval $(keychain --eval id_rsa)
That does the same thing (launches ssh agent, etc.), while also not ...
- 316
8
votes
Accepted
Can't use functions exported from .bashrc in a bash script
Check http://www.gnu.org/software/bash/manual/bashref.html#Bash-Startup-Files
Invoked non-interactively
When Bash is started non-interactively, to run a shell script, for example, it looks for ...
- 4,650
8
votes
Accepted
Where does the bash PATH on CentOS 7 get /usr/local/bin from?
In the bash source "config-top.h" has this:
/* The default value of the PATH variable. */
#ifndef DEFAULT_PATH_VALUE
#define DEFAULT_PATH_VALUE \
"/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/...
- 807
8
votes
~/.bashrc is NOT sourced on ssh 'command'
From the INVOCATION chapter of man bash:
When an interactive shell that is not a login shell is started, bash reads and executes commands from /etc/bash.bashrc and ~/.bashrc, if these files exist. ...
- 4,518
7
votes
Best Practice to obscure path to keypair in bash_profile?
Hiding your key in an unusual place is not making it any safer. If you undertake basic good practice for key management there's really no need to do anything extra.
Your private key needs to be kept ...
- 116k
6
votes
Standard place for user defined bash_completion.d scripts?
A simpler solution is to use the nullglob option. While this isn't portable, neither are bash completions. So portability doesn't matter.
Also, you'll want to use quotes around the variable when ...
- 61
6
votes
Where does the bash PATH on CentOS 7 get /usr/local/bin from?
It definitely looks hard coded into /bin/bash
strings /bin/bash | grep "\/usr\/local\/bin"
/usr/local/bin:/bin:/usr/bin
which seems to be the default PATH.
- 116k
5
votes
Accepted
'source .bash_profile' fails but 'source path/to/.bash_profile' works
You are using bash in POSIX mode.
From man bash under source filename [arguments]
If filename does not contain a slash, file names in PATH are used to find the directory containing filename... ...
- 19.6k
5
votes
Where does the bash PATH on CentOS 7 get /usr/local/bin from?
In addition to previous answers; If you are reaching you VM by ssh this could has sense.
In /etc/ssh/sshd_config:
# This sshd was compiled with PATH=/usr/local/bin:/usr/bin
- 276
5
votes
Accepted
Aliasing Server Name in SSH Command
This should work:
create a file $HOME/.ssh/config (or in /etc/ssh/ssh_config, if you want to install that alias system-wide), and put the following config inside:
Host myalias
Hostname very-long-...
- 2,324
4
votes
Convenient date/time stamping console interaction e.g. using shell aliases?
You can simply modify your shell prompt PS1 variable to show current timestamp. One of the following can be used:
\t the current time in 24-hour HH:MM:SS format
\T the current time in 12-hour ...
- 36.7k
4
votes
Accepted
sourcing environment variable in bashrc: directly vs export from file yields different result - why
You forgot the export in your .env file, so the variable isn't actually an environment variable.
Shell variables are not exported to environment by default. Only assignments to an already exported ...
- 10.6k
3
votes
Standard place for user defined bash_completion.d scripts?
The answer by Russell E Glaue is great but its ~/.bash_completion is incomplete.
The problem is when ~/.bash_completion.d/ is empty and subsequently for f in ~/.bash_completion.d/* prints the ...
3
votes
Best Practice to obscure path to keypair in bash_profile?
If someone has enough access to your box to harvest your keys, it's game over anyway. Don't worry about it.
- 110k
3
votes
Running a bash script from systemd as if I logged in
The difference between running the script via systemd and running it directly is the environment. You can test it like this. In your Unit file, add this to the [Service] section, for testing:
...
- 3,971
3
votes
Login without running bash_profile or bashrc
ssh -t user@host "bash --norc --noprofile -c '/bin/rm .bashrc'"
- 131
3
votes
How to define envrionment variables accesisble by crontab's run and bash shell
I don't think you can do this in the crontab directly. The crontab file isn't a shell script so trying to source a script containing envvars into it doesn't work
. /path/to/envvars
crontab won't ...
- 116k
3
votes
Accepted
Logout user if they break a bashrc command
You can add line
trap '' 2
at start of you script to disable CTRL+C and
trap 2
in end to enable CTRL+C functional.
This will prevent user from brake you script execution.
Note that this should ...
- 3,305
3
votes
How to rename system commands e.g., shutdown in Ubuntu Linux
shutdown, rm and reboot commands
rm is required for a POSIX environment. If you don't want a user to delete a file, remove their write permission on the directory containing it, and don't give them ...
- 32.6k
3
votes
Accepted
How to set a command alias that will be respected in a shebang
Is it possible to set an alias for the php command which is respected in the shebang?
No because shebang is parsed by kernel which doesn't know or care about your
shell-specific aliases and ...
3
votes
Accepted
How to Make the IP Address Appear as Part of Bash Prompt?
Letting your prompt actually derive that IP-address is, as far as I know, rather more difficult. Bash does not provide a ready-made variable to use for that according to the list with special ...
- 1,799
2
votes
Accepted
printing user of subshell obtaining root via su -
Previously I recommend the script below...
I found a better way! :) Just exec:
logname
Also, you can use $SUDO_USER, but doesn't work if you are using sudo su -
By the way, who am i is like who -m
...
2
votes
ansible-playbook not able to use .bashrc env variables
I use this one:
- shell: . ~/.bashrc && echo $LS_COLORS
args:
executable: /bin/bash
register: result
- set_fact:
ls_colors: "{{ result.stdout }}"
Only top scored, non community-wiki answers of a minimum length are eligible