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Questions tagged [bash]

The default Unix shell used by Terminal in macOS

368
votes
7answers
266k views

How do I recompile Bash to avoid Shellshock (the remote exploit CVE-2014-6271 and CVE-2014-7169)?

Given that Bash 3.2 (the version shipped by OS X) is vulnerable to the remote execution exploit known as "Shell Shock" (CVE-2014-6271 and CVE-2014-7169) how do I rebuild Bash and secure my system ...
90
votes
2answers
149k views

Why doesn't Mac OS X source ~/.bashrc? [duplicate]

I found a lot of people figuring out why instruction similar to this : Put X to your ~/.bashrc and you can do Y don't work. It always turns out that Mac OS X's bash's startup files (or Mac's Bash ...
31
votes
8answers
23k views

SRM gone in macOS Sierra (10.12)

I've just updated to macOS 10.12 and when I try to execute srm in Terminal, it says -bash: srm: command not found. Is srm removed? How to fix this?
10
votes
5answers
19k views

I broke my PATH by editing my ~/.bash_profile and Bash will not recognize most commands

in .bash_profile I accidentally set the path to: PATH="~/Tools/apache-maven-3.3.3/bin" and now the default path is gone. Nothing in Terminal works anymore: Korays-MacBook-Pro:~ koraytugay$ ls -bash:...
190
votes
13answers
349k views

Why doesn't .bashrc run automatically?

I put some alias commands in my .bashrc file, so that they might be loaded everytime I open a new Terminal window. Yet this doesn't happen. I have to select run script: in the Terminal>Preferences>"...
53
votes
2answers
59k views

Run AppleScript from bash script

If I wanted to run an AppleScript from within a bash script I could call a file with the list of commands that I require to execute. #!/bin/bash {some commands} osascript file.scpt {other commands} ...
35
votes
6answers
61k views

How to set system-wide environment variables on OS X Mavericks

We used to use /etc/environment to set system-wide environment variables on Mountain Lion. However, it seems this file is no longer read. Ideally the solution should apply to all users, and we need ...
18
votes
4answers
16k views

My Automator Workflow fails because it fails to find the git command within the 'Run Shell Script' command? Need help

I have an Automator workflow and one of the actions is to clone a repository. Here's the code for the 'Run Shell Script' action. The command is run within the Bash shell /bin/bash if that matters: ...
70
votes
5answers
47k views

Update bash to version 4.0 on OSX

Is it possible to actually update bash to version 4.0 in OSX Yosemite? echo $BASH_VERSION 3.2.57(1)-release This article and this thread refer to the same question, but they install a new shell side-...
59
votes
5answers
29k views

Are Macs vulnerable to the Bash shellshock bug?

Red Hat recently announced a major security-related bug in the Bash shell. Some are calling it the "shellshock" bug. Since OS X is built off of Unix, is it vulnerable to attacks that exploit this bug? ...
6
votes
1answer
9k views

Why is a command line change to ~/Library/Preferences/com.apple.LaunchServices.plist not effective immediately?

When the Info window of Finder is used to associate files of a particular type with an application: the preference is effective immediately. When Terminal is used to make a comparable addition to ~...
12
votes
5answers
52k views

How to reset $PATH?

I was trying to add something to $PATH and it went totally wrong. I now can't run any commands such as ls. I've looked at this answer and used the following lines: PATH=/usr/bin:/bin:/usr/sbin:/...
7
votes
2answers
9k views

How do I restart the cron service on OSX?

ProductName: Mac OS X ProductVersion: 10.11.6 BuildVersion: 15G31 $ sudo cron restart cron: cron already running, pid: 257` None of the answers in here https://stackoverflow.com/questions/...
11
votes
1answer
5k views

Unable to set DYLD_FALLBACK_LIBRARY_PATH in shell on OSX 10.11.1

In shell scripts used for unit testing with dynamic libraries in a directory other than the typical @rpath, I have previously been able to set DYLD_FALLBACK_LIBRARY_PATH to set the directory ...
317
votes
11answers
168k views

git auto-complete for *branches* at the command line?

On my Linux machine I have autocomplete for branches with Git. [Note we are talking about git branch completion, not bash completion (e.g. commands, files, etc). Thus NOT Lane's answer at all] For ...
227
votes
3answers
177k views

What is the difference between .bash_profile and .bashrc?

To make an alias for the Terminal in OS X, you can either put the aliases in .bash_profile or .bashrc. What is the difference between the two and why would I choose to put aliases in one and not the ...
58
votes
7answers
304k views

How do I set environment variables on OS X?

I have always difficulties setting the Environment variables in OS X like JAVA_HOME, M2_HOME or PATH. How to set these on OS X Mavericks? I did some research but the answers I've found didn't really ...
80
votes
4answers
25k views

Is it safe to upgrade Bash via Homebrew?

I'm new to OS X. I'm running OS X Lion on a MacBook Pro. Is it safe to upgrade the bash shell using Homebrew: $ brew install bash If safe, how do I make it the default instance of the shell I run ...
22
votes
3answers
134k views

How to create ~/.bash_profile and ~/.profile

So, I don't have .bash_profile neither .profile in my home folder. How do I create them? After that, what should I do so every time I open the terminal these files get read?
17
votes
4answers
12k views

Change file association in terminal?

Is there a method for associating file types with applications via terminal? I thought ~/Library/Preferences/com.apple.launchservices.plist might do it, and I also have seen: Why is a command line ...
16
votes
7answers
5k views

Is there a bash command to check to see if Time Machine has finished backing up?

I'm writing a script that will rsycnc my Time Machine directory to a remote server using ssh. I've switched from a shell script to an AppleScript and then back to an Apple script and I don't really ...
6
votes
3answers
1k views

Can man pages be converted to html and/or pdf format?

The command man bash produces a lot of output. What I desire would be to either search the results or print the results to paper. So, is there a way to convert a man page to a html and/or pdf document....
4
votes
3answers
9k views

Set the master password from terminal

I am trying to set a master password from the terminal (using a shell script). I see the passwd function and the master.passwd function, however I don't see any documentation on either of these to set ...
4
votes
3answers
944 views

Log file that `sudo last` accesses?

The bash command last (needs sudo) prints out logs, which contain information on when different users log in/out of the shell. I have been looking for the file that stores this information, that last ...
8
votes
2answers
2k views

Are Bash, Bourne, and Korn shells compiled into one binary in OSX?

On OSX 10.8, if you compare the binaries for bash, sh, and ksh, a few different shell options, they are the same size. If you take it further and cmp the binaries, there seems to be only a single-...
5
votes
2answers
987 views

I deleted .bash_history, now history isn't saved anymore (although I re-created it)

I have freshly installed a new copy of El Capitan. I accidently deleted .bash_history, so I just did a touch .bash_history again, hoping this would solve the problem of my bash history not being ...
3
votes
1answer
3k views

ffmpeg working from command line in Terminal but not in an Automator shell script!

I have just compiled my own copy of ffmpeg on my system and it's located in the following path: /opt/local/bin/ffmpeg When I run the following command in Terminal.app, it runs smooth: ffmpeg -i /...
83
votes
5answers
201k views

Getting files, all at once, from a web page using curl

I would like to download the files, all at once, from the following page using curl: http://www.ime.usp.br/~coelho/mac0122-2013/ep2/esqueleto/ I tried curl http://www.ime.usp.br/~coelho/mac0122-2013/...
27
votes
6answers
93k views

How to add MySQL to $PATH variable to resolve “mysql: command not found”?

I installed MySQL on my Mac, and now I would like to add it to my $PATH variable. I want to be able to type mysql anywhere. I tried adding the following to my .profile file: export PATH=${PATH}/usr/...
22
votes
1answer
24k views

Using bash/terminal to get number of battery recharge cycles

I would like to get the number of recharge cycles using bash (terminal commands). I understand the following command will display all of the battery data, but I want the cycle count on its own ioreg -...
15
votes
4answers
5k views

Updating modifier key mappings through defaults command tool

I am trying to automate the inital setup of my macbook, that includes installing software and changing OS X configuration to my needs. I have tried to update the modifier keys with defaults, the ...
9
votes
4answers
14k views

How to obtain Bluetooth ID (OS X)

I need to remotely grab the Bluetooth ID from multiple machines throughout my network. What are the best ways to remotely obtain the Bluetooth ID in OS X?
27
votes
5answers
5k views

Did `man ls > temp.txt`. Output textfile is corrupted

When I execute man ls > temp.txt the output text file is corrupted. By corrupted I mean that first and last letters in some words are overly repeated. Several first lines in temp.txt: LS(1) ...
20
votes
2answers
5k views

cd to a directory by typing its name?

For example if a directory 'blob' exists and I just type 'blob[return]' then the system cds into the blob directory for me. In Linux (Ubuntu) I can add shopt -s autocd to my .bashrc file, but on OS X ...
9
votes
2answers
2k views

“Airplane Mode” in OS X. Alternative command for `rfkill`?

Mac OS X doesn't recognize rfkill from its terminal, and I am looking for an alternative command that has similar functionality (toggling "Airplane Mode"). NOTE: I don't wish to open an .app to ...
19
votes
2answers
7k views

What does update_terminal_cwd do in the terminal of OS X

I am puzzled by it for quite some while now. In $PROMPT_COMMAND of the bash in OS X, there is a command called update_terminal_cwd. I am sure it's not a bash built in, and most likely only exists in ...
8
votes
3answers
14k views

Change Terminal.app's Default Shell to BASH

How can I change Terminal.app's default shell to BASH? For some reason, my friend's Mac (10.6.6) defaults to using TCSH instead of BASH. The obvious remedy is to choose /bin/bash as the command to ...
9
votes
3answers
2k views

Moving .bash_profile to Dropbox

I'd like to move my .bash_profile to Dropbox to have my custom Terminal functions available on all my Macs. Is this possible and are there possible implications? For example I have a command for ...
4
votes
3answers
1k views

Generic exit function for iTerm2

I've recently begun to use iTerm2 instead of the macOS Terminal application and I'm really happy with it. I'm very used to use to exit command to close the instance that currently has focus. With ...
16
votes
2answers
4k views

Why is there a left bracket before my bash prompt?

I've notice that after I execute commands, a left bracket character will appear before the previous line. It seems to be partially dependent on what's in $PS1. I've tried unsetting $PROMPT_COMMAND and ...
3
votes
2answers
3k views

How to pass variables from bash script to AppleScript

I have a file with a list of URL's. I need to pass each URL from a bash script to be used in an AppleScript. while read urls do osascript -e \ 'tell application "Safari" tell ...
3
votes
4answers
5k views

List the extensions installed in Safari for Mac OS X, and state whether each one is enabled

I'd like a list, from which text can be copied. (Not a screenshot of preferences.) This information does not appear in any of the following: Safari System Profiler in Snow Leopard System ...
10
votes
5answers
1k views

How to share .bashrc files between two mac user accounts

I have set up two user logins on my computer, one for home and one for work. I would like to be able to share any of my bash and vim settings between the two users. Is there anyway to do this? Thus ...
9
votes
2answers
8k views

Terminal not displaying colors for directory listings

I don't know why my bash session doesn't show colors. I have tried Terminal as well as iTerm. I have tried: ls -G Setting export CLICOLOR=1 and export LSCOLORS=GxFxCxDxBxegedabagaced Using different ...
4
votes
2answers
10k views

iTerm2 terminals close immediately with “argpath=login error=No such file or directory”

Whenever I try to open a new terminal window in iTerm, it closes right away after displaying this: ## exec failed ## argpath=login error=No such file or directory Does anyone know what is causing ...
4
votes
3answers
1k views

How can I rebind keyboard keys in OS X?

I need a custom keyboard shortcut for back slash \. I have created ~/Library/KeyBindings/DefaultKeyBinding.dict and put this in it: { "@ö" = ("insertText:", "\\"); } It is supposed to trigger ...
4
votes
3answers
4k views

Change owner for all files owned by x

I copyied files from my MacBook, mainly files from /usr. The one and only user on my computer is called 'Julian' (like on my MacBook). A lot of the copied files are now owned by '501' (id of "Julian" ...
3
votes
2answers
3k views

How do I make invisible files (like bash profile) visible in the finder?

question is in the title. There's some files that most Apple users don't need access to, but if you program you do need access to. in particular the bash profile. anyone know how to make these visible ...
2
votes
1answer
2k views

Alt-. and vertical bar (pipe) on terminal

On linux consoles I always use Alt + . to get the last argument of the previous command in history. for example if I had ls /tmp/test as last command, and if I type rm Alt - this will result in ...
2
votes
1answer
474 views

Save Bash shell history also when closing Terminal tab

When a macOS High Sierra Terminal shell is ended using the exit command the Bash shell history is saved and can be recalled in subsequent shell sessions. However, if the shell is ended by closing the ...