Sponsored Content
Operating Systems OS X (Apple) MacOS 10.15 (Catalina) switches from bash to zsh Post 303040263 by MadeInGermany on Friday 25th of October 2019 04:37:11 PM
Old 10-25-2019
You'll find that zsh is similar to bash. Many bashisms work in zsh.

In rare cases zsh deviates from sh and the standard, for a good reason.
For ex $var in a for list is not expanded the usual way; you must explicitly enforce it with ${=var}
(And because zsh like bash allows $#var instead of the standard ${#var} you may use $=var.)
Now ask yourself: how often do you want this kind of expansion, and how often do you stumble over an unwanted expansion?
 

10 More Discussions You Might Find Interesting

1. Solaris

Missing init files for zsh and bash

I change my default shell to zsh but can't find the init files, .zshrc and .zlogin from /export/home and /home. The other shells init files are there:.cshrc, .profile and .login. Am I suppose to use these as templates? Also, bash_history is there but not zsh_history although zsh do keep a... (2 Replies)
Discussion started by: maag
2 Replies

2. Shell Programming and Scripting

From bash to csh and zsh

... Am I glad to find this forum (and vBulletin too, nice!).. OK, here's my issue. I have been handballed a bash script, not pretty but functional. I need to change to csh and zsh. For the csh I have the basics (e.g., such as change if/fi to if/endif, quote the variables, and bracket commands).... (10 Replies)
Discussion started by: lev_lafayette
10 Replies

3. Shell Programming and Scripting

a simple for loop in bash and zsh

Hi! I am just starting to learn scripting. I am trying a simple script in bash and zsh I have two questions: First: Why zsh does not expand the var M? What I am doing wrong? localhost galanom # bash -c 'M="m1 m2 m3 m4 m5"; for x in $M; do echo "<$x>"; done' <m1> <m2> <m3> <m4> <m5>... (1 Reply)
Discussion started by: galanom
1 Replies

4. Shell Programming and Scripting

Run bash command inside zsh script

Hi, I would like to run following code in bash inside a zsh script. (In this case is output unfortunately very different if you run it in zsh). I tried to put "bash" in front of the code but I obtained following error message "bash: do: No such file or directory " eve though I merged the whole... (7 Replies)
Discussion started by: kamcamonty
7 Replies

5. Shell Programming and Scripting

Terminal running bash/rsync script does not close with exit (MacOS High SIerra)

Hello, I am running a bash script to do an rsync back on a computer running MacOS High Sierra. This is the script I am using, #!/bin/bash # main backup location, trailing slash included backup_loc="/Volumes/Archive_Volume/00_macos_backup/" # generic backup function function backup {... (12 Replies)
Discussion started by: LMHmedchem
12 Replies

6. OS X (Apple)

MacOS 10.15 Catalina Crashes and Freezes on Boot

Sadly, I have turned off my access to the Apple Developers Beta program after installing macOS 10.15 Catalina a few days ago. After the install, I rebooted by MacBook Air and it "hard froze" and we were heading out of town so I grabbed a backup MBA running Mojave. Then, after getting back at... (10 Replies)
Discussion started by: Neo
10 Replies

7. Programming

Python Screen Capture of RIGOL 1054Z on macOS Catalina Using NI-VISA

On the NI-VISA boards there has been some frustration where folks cannot get NI-VISA to work on macOS Catalina because Catalina (macOS 10.15.x) is "not supported" by NI-VISA (for many months, it seems). Currently, the README shows: NI-VISA 19.0 for macOS supports the following platforms: ... (10 Replies)
Discussion started by: Neo
10 Replies

8. Windows & DOS: Issues & Discussions

Poor Windows 10 Performance of Parallels Desktop 15 on macOS Catalina

Just a quick note for macOS users. I just installed (and removed) Parallels Desktop 15 Edition on my MacPro (2013) with 64GB memory and 12-cores, which is running the latest version of macOS Catalina as of this post. The reason for this install was to test some RIGOL test gear software which... (6 Replies)
Discussion started by: Neo
6 Replies

9. Programming

A Slightly Better NTP Client for the ESP32 (ESPWROOM32) on macOS Catalina

Currently have two ESP8266 modules testing some Blynk apps, whereI'm not so happy with the Blynk business model for developers, but that's another story. So, with two of my ESP8266s currently "busy", I decided to work on the ESP32, and in particular the ESPWROOM32. I installed the... (0 Replies)
Discussion started by: Neo
0 Replies

10. OS X (Apple)

MacOS 10.15.2 Catalina display crash and system panic

MacPro (2013) 12-Core, 64GB RAM (today's crash): panic(cpu 2 caller 0xffffff7f8b333ad5): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 120 seconds service: com.apple.logd, total successful checkins since load (318824 seconds ago): 31883, last successful... (3 Replies)
Discussion started by: Neo
3 Replies
MODLOAD(8)						    BSD System Manager's Manual 						MODLOAD(8)

NAME
modload -- load a kernel module SYNOPSIS
modload [-fP] [-b var=boolean] [-i var=integer] [-s var=string] module modload -p [-b var=boolean] [-d var] [-i var=integer] [-m plist] [-s var=string] DESCRIPTION
The modload utility loads a kernel module specified by the module parameter into the running system. Modules are loaded from the default system module areas unless the module parameter contains a path separator character ('/'). The options to modload are as follows: -b var=boolean Pass the module a boolean property with the name var. boolean may be either true or false. -d var When used in conjuction with -m, delete var from the plist specified. -f When a module is loaded, the kernel checks if the module is compatible with the running kernel and will refuse to load mod- ules that are potentially incompatible. This option disables compatibility checks. Note: an incompatible module can cause system instability, including data loss or corruption. This option is also required for re-enabling a builtin module that was disabled using modunload(8). -i var=integer Pass the module an integer property with the name var and integral value integer. -m plist When used in conjuction with -p, merge new options with an existing property list contained in plist. -P This option tells the kernel not to load an associated property list. -p Output a property list suitable for loading along with a module. When using this option, you do not need to specify a mod- ule. Use -m and -d to read and modify an existing property list. -s var=string Pass the module a string property with the name var and string value string. DIAGNOSTICS
The modload utility exits with a status of 0 on success and with a nonzero status if an error occurs. SEE ALSO
module(7), modstat(8), modunload(8) HISTORY
The modload command was designed to be similar in functionality to the corresponding command in SunOS 4.1.3. BSD
August 6, 2011 BSD
All times are GMT -4. The time now is 08:38 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy