All Questions
2,466
questions
697
votes
16
answers
367k
views
How can I clear previous output in Terminal in Mac OS X?
I know the clear command that 'clears' the current screen, but it does this just by printing lots of newlines - the cleared contents just get scrolled up.
Is there a way to completely wipe all ...
- 85.2k
654
votes
10
answers
755k
views
OS X: equivalent of Linux's wget
How can I do an HTTP GET from a Un*x shell script on a stock OS X system? (installing third-party software is not an option, for this has to run on a lot of different systems which I don't have ...
- 28.1k
612
votes
6
answers
1.2m
views
How to run a shell script on a Unix console or Mac terminal?
I know it, forget it and relearn it again. Time to write it down.
- 11.1k
540
votes
7
answers
508k
views
OS X Terminal Colors [closed]
I just got a Mac after working with Ubuntu Linux for some time. Among the many things I'm trying to figure out is the absence of colors in my terminal window- like the ones that are shown (on Linux) ...
- 28.7k
288
votes
8
answers
351k
views
How to run a shell script in OS X by double-clicking?
I have a shell script that has user execution permission on OS X, but when I double click on it, it opens in a text editor. How can I get it to run by double-clicking it?
- 12.2k
276
votes
12
answers
177k
views
How to run mvim (MacVim) from Terminal?
I have MacVim installed and I am trying to set it up as the editor for Git (version control), but I can't run 'mvim' from the command line as it isn't recognised. How do I setup mvim so I can run it ...
- 4,877
269
votes
16
answers
355k
views
How do I create a Bash alias?
I'm on OSX and I need to put something like this, alias blah="/usr/bin/blah" in a config file but I don't know where the config file is.
- 50.6k
240
votes
16
answers
130k
views
How to send data to local clipboard from a remote SSH session
Most Unix-like systems have a command that will let you pipe/redirect output to the local clipboard/pasteboard, and retrieve from same. On OS X, these commands are
pbcopy, pbpaste
Is there a way to ...
- 165k
209
votes
12
answers
338k
views
List files with certain extensions with ls and grep
I just want to get the files from the current dir and only output .mp4 .mp3 .exe files nothing else.
So I thought I could just do this:
ls | grep \.mp4$ | grep \.mp3$ | grep \.exe$
But no, as the ...
- 15.3k
200
votes
2
answers
296k
views
Where to place $PATH variable assertions in zsh?
I love zsh, but I am not sure where to place my $PATH and other variable assertions? I find that they are scattered between the files .zshrc .zprofile .bashrc .bash_profile, and sometimes doubled.
I ...
- 7,047
186
votes
12
answers
130k
views
Executing Shell Scripts from the OS X Dock?
How do I set up a shell script to execute from the Mac OSX dock? It seems that simply creating a shortcut will open the file in my editor. Is there a flag I need to set somewhere to tell it to run ...
- 33.1k
178
votes
14
answers
173k
views
Recursive search and replace in text files on Mac and Linux
In the linux shell, the following command will recursively search and replace all instances of 'this' with 'that' (I don't have a Linux shell in front of me, but it should do).
find . -name "*.txt" -...
- 16.6k
157
votes
13
answers
82k
views
grep -P no longer works. How can I rewrite my searches?
It looks like the new version of OS X no longer supports grep -P and as such has made some of my scripts stop working, for example:
var1=`grep -o -P '(?<=<st:italic>).*(?=</italic>)' ...
- 2,611
155
votes
9
answers
160k
views
How to Batch Rename Files in a macOS Terminal?
I have a folder with a series of files named:
prefix_1234_567.png
prefix_abcd_efg.png
I'd like to batch remove one underscore and the middle content so the output would be:
prefix_567.png
...
- 1,547
152
votes
6
answers
157k
views
How to make zsh run as a login shell on Mac OS X (in iTerm)?
When zsh is set as a login shell on Mac OS X, when it is started by iTerm, zsh doesn't consider that it's being run as a login shell, although it's started as ‘-zsh’ (‘-’ is put as the first character ...
- 7,298
134
votes
8
answers
448k
views
Run script on mac prompt "Permission denied"
I'm new to mac with not familiar on terminal command, i put the dvtcolorconvert.rb file on root directory of my volume, this ruby script can converting xcode 3 themes into xcode 4 themes format, which ...
- 1,483
121
votes
7
answers
97k
views
How do I set a task to run every so often?
How do I have a script run every, say 30 minutes? I assume there are different ways for different OSs. I'm using OS X.
- 15.8k
116
votes
17
answers
95k
views
How to copy to system clipboard from tmux output after mouse selection?
Now for copy to system clipboard I have to select via mouse text in tmux window with Shift key. And then I have to run this command:
tmux save-buffer - | reattach-to-user-namespace pbcopy
Is any ...
- 6,989
115
votes
9
answers
128k
views
How to make a shell script global?
I am on Mac's OS 10.6, and I am trying to learn a thing or two about shell scripting. I understand how to save a shell script and make it executable, but I am wondering what I can do or where I can ...
- 2,492
109
votes
4
answers
48k
views
How to start a shell without any user configuration?
I need to use a "clean" shell (e.g. bash) under Linux/OSX terminal without any user configuration, but it reads config info from some files (e.g ~/.bashrc) every time it starts. I can modify the file ...
- 2,607
108
votes
5
answers
21k
views
Easiest way to strip newline character from input string in pasteboard
Hopefully fairly straightforward, to explain the use case when I run the following command (OS X 10.6):
$ pwd | pbcopy
the pasteboard contains a newline character at the end. I'd like to get rid of ...
- 1,330
106
votes
5
answers
143k
views
calling conda source activate from bash script
I'm trying to activate my conda env via a bash script. Even though the script runs fine and my PATH appears to be changed within the script, it's getting reset somehow after the script terminates. I ...
- 4,339
103
votes
11
answers
110k
views
How to load ~/.bash_profile when entering bash from within zsh?
I've used bash for two years, and just tried to switch to zsh shell on my OS X via homebrew. And I set my default (login) shell to zsh, and I confirmed it's set properly by seeing that when I launch ...
- 31.7k
99
votes
3
answers
105k
views
Which shell I am using in mac
Default shell in my mac was bash.
I have tried to change it into ZSH by command chsh -s /bin/zsh.
Now when I am trying to check the shell type, I am getting different responses.
COMMAND-1
input : ...
- 1,968
96
votes
2
answers
137k
views
What are the differences between using the terminal on a mac vs linux? [closed]
I've been using Ubuntu for the last four years.
I have a basic knowledge of shell commands and I prefer working in a terminal rather than using a GUI. Recently I've started using a Mac.
I've tried ...
- 2,427
90
votes
1
answer
79k
views
How to define array in multiple lines in Shell
Is it possible to define an array in multiple lines in a shell script file? I tried something like this:
foo.sh
#!/usr/bin/env bash
messages=(
"Hello"
"World"
)
echo $messages
However, ...
- 32.4k
89
votes
14
answers
222k
views
Installing and Running MongoDB on OSX
If someone can provide some insights here I would GREATLY appreciate it.
I had a express/node.js app running on MongoDB locally successfully, but upon restarting my computer, I attempted to restart ...
- 931
89
votes
4
answers
31k
views
How to delete a word in iTerm in mac os
I am using iTerm as a terminal in my mac. I am not able to delete a word in command line for ex in command cd /path/to/dir, i want to delete just path word , then how can i do that in iTerm.
...
- 961
84
votes
8
answers
190k
views
How to convert DATE to UNIX TIMESTAMP in shell script on MacOS
On Linux you can convert a date like "2010-10-02" to a unix timestamp in shell script by
date -d "2010-10-02" "+%s"
Since Mac OS does not have the equivalent -d for date. How do you go about ...
- 4,713
82
votes
4
answers
49k
views
Get wireless SSID through shell script on Mac OS X
Is there any way to get the SSID of the current wireless network through a shell script on Mac OS X?
- 57.7k
77
votes
10
answers
92k
views
How can I batch rename files using the Terminal?
I have a set of files, all of them nnn.MP4.mov. How could I rename them so that it is just nnn.mov?
- 773
74
votes
9
answers
193k
views
How to get the PID of a process by giving the process name in Mac OS X ?
I am writing a script to monitor the CPU and MEM of any given process. For that i need to send in the name of the process to be monitored as a commandline argument. For example.
./monitorscript <...
- 1,964
74
votes
7
answers
95k
views
I get 'Command Not Found' when I try to run Android Emulator on Mac OS X
When I use the Mac OS X Terminal to navigate to the folder with my Android Emulator and type emulator, I get:
command not found
Here's what happens:
$ emulator
-bash: emulator: command not found
...
- 2,039
73
votes
6
answers
48k
views
How to get osx shell script to show colors in echo
I'm trying to add color output to my errors in bash on a Mac. The colors are not working:
#!/bin/bash
echo -e "\e[1;31m This is red text \e[0m"
I see no colors at all, as shown in this ...
- 7,511
73
votes
11
answers
164k
views
How do you run a script on login in *nix?
I know I once know how to do this but... how do you run a script (bash is OK) on login in unix?
- 19.3k
70
votes
2
answers
114k
views
How to get the last line of a file using cat command
I am writing a shell script in OSX(unix) environment. I have a file called test.properties with the following content:
cat test.properties gets the following output:
//This file is intended for
//...
- 7,879
60
votes
13
answers
144k
views
How to override the path of PHP to use the MAMP path?
After screwing up entirely my PHP configuration on MAC trying to get the SOAP module working (-bash: /usr/bin/php: No such file or directory
....) I now have to use MAMP but each time I have to type ...
- 8,815
59
votes
6
answers
66k
views
How to kill all processes with the same name using OS X Terminal
Getting the following output from running this:
ps aux | grep Python
Output:
user_name 84487 0.0 0.0 0 0 ?? Z 12:15PM 0:00.00 (Python)
user_name 84535 0.0 0.0 0 ...
- 18.8k
58
votes
7
answers
95k
views
Close Terminal window from within shell script (Unix)?
Is there a way to close a Terminal window from within a shell script? I have a .command file that should just get out of the way once it's done.
- 25.9k
52
votes
13
answers
64k
views
Bash script, watch folder, execute command
I am trying to create a bash script with 2 parameters:
a directory
a command.
I want to watch the directory parameter for changes: when something has been changed the script should execute the ...
- 58.1k
52
votes
1
answer
32k
views
"Illegal option" error when using find on macOS
I am trying to list the files only with the letter "R" at the end. I used find as follows in macOS Terminal,
find -type f -name '*R'
But I got the message saying illegal option --t.
- 1,525
51
votes
8
answers
29k
views
How to Open files and folders in same window in Sublime Text on macOS?
If I open ~/foo.txt then open ~/baz/bar.txt from Terminal, Sublime Text always opens 2 different windows. It's aggravating to have all these different windows open..
I've tried changing a bunch of ST'...
- 7,545
51
votes
1
answer
26k
views
MAC's "say" command to MP3 [closed]
I want to read a very long text with the SAY mac's command (say -f file.txt), and to record the output to file.mp3. I thought about using ffmpeg to record all of it, but then i'll need to wait for all ...
- 1,902
51
votes
6
answers
48k
views
Counting number of files in a directory with an OSX terminal command
I'm looking for a specific directory file count that returns a number. I would type it into the terminal and it can give me the specified directory's file count.
I've already tried echo find "'...
- 1,183
50
votes
5
answers
51k
views
How to get the default shell
We can run something like chsh -s /usr/local/bin/zsh to set a new default shell. Is there a command we can run to know what that shell is?
I don’t mean having a terminal open and running a command to ...
- 5,564
48
votes
9
answers
57k
views
Colored shell script output library
I am looking for a definitive way to build shell scripts that generates colored output.
Unfortunately I am having a hard time finding an appropriate lib or good technique for doing this. I found a ...
- 2,264
43
votes
8
answers
38k
views
Getting a Scala interpreter to work
I'm very new to Scala. I have downloaded it, got it working in Eclipse where I'll be developing it; but I can't make it work in Terminal.
All sites and books say to just type scala - this doesn't ...
- 8,593
43
votes
1
answer
63k
views
Make a copy of a file and give it a different name mac terminal
Mac.
I'm in a directory dogs/scripts/cats.
Within this directory there is a file bla.txt.
I would like to make a copy of bla.txt called bla2.txt and keep it in the same directory.
How do I do that?...
- 20.8k
42
votes
3
answers
13k
views
Zsh tab-completion for "cd .." [closed]
How can I configure the Zsh tab-completion such that when I type cd ..<TAB> it expands to cd ../ and after pressing <TAB> again proposes the folders in the parent directory for completion?
...
- 896
42
votes
7
answers
29k
views
Is there a way to find the running time of the last executed command in the shell?
Is there a command like time that can display the running time details of the last or past executed commands on the shell?
- 47.6k