Implement a user-level sleep program for xv6, along the lines of the UNIX sleep command. Your sleep should pause for a user-specified number of ticks. A tick is a notion of time defined by the xv6 kernel, namely the time between two interrupts from the timer chip. Your solution should ...
I need to run the "sleep" command for one of my app with some shell scrip to run, and it used to work. After I update the rom and install the latest busybox v1.20.2, I got the following error: sleep: syntax error: Invalid argument "2s" It seems like the new sleep comma...
Thesleepcommand continues running until the specified number ofsecondshas elapsed.sleepcan delay execution of a program or produce periodic execution in conjunction with shell commands. Thesecondsargument can be either a number of seconds, or a more general time description of the formnhnmns, with t...
我在使用Manjaro Linux。我改变了yt的zsh配置现在我得到了❯ ytvp deal_with_long_filename:1: command not found: xsel -ob deal_with_long_filename:2: command not found: xsel -ob 日志显示 Usage: yt-dlp [OPTIONS] URL [URL...] yt-dlp: error: no such option: --continue --no-overwrites...
Also used in the phrase "sleep on" (or "block on") some external event, meaning to wait for it. E.g. theUnixcommand of the same name which pauses the current process for a given number of seconds. sleep (hardware) To go into partial deactivation to save power. ...
In humans, sleep occurs in cyclical patterns; in each cycle of 11-2 to 2 hr, the sleeper moves through four stages of sleep, from Stage 1 to Stage 4, and back again to Stage 1. In the first stage, low-frequency, low-amplitude theta waves characterize brain activity. The stage usually...
关键是,如何通过变量传递dns?它是这样工作的: command: ['sh', '-c', 'until nslookup mysql-primary.default.svc.cluster.local; do echo waiting for mysql; sleep 2; done;'] 但不是这样的: command: ['sh', '-c', 'until nslookup $(MYSQL_ 浏览0提问于2021-01-08得票数 0...
Without the YouCompleteMe plugin, the same :sleep 10 command is interruptible with CTRL-C. :help sleep explicitly says that CTRL-C should insterrupt it. I have no idea what YouCompleteMe is doing to prevent interrupting :sleep 10 with CTRL-C. I am not sure whether it's a bug in YouCompl...
身为UNIX 系统管理者除了要熟悉 UNIX 指令外,我们最好学会几种 scripts 语言,例如 shell script 或 perl。学会 script 语言后,我们就可以将日常的系统管理工作写成一支执行档,如此一来,在管理系统时就可以更加灵活。 Shell script 是最基本的 script 语言,它是一堆 UNIX 指令的集合。本章将介绍 Shell script 的...
Windows build number: Microsoft Windows [Version 10.0.18362.592] WSL version: 1 Linux distro: Arch WSL Description: I'm using Arch WSL in WSL 1 and after an update which bumped glibc from 2.30.3 to 2.31.1 the sleep command stopped workin...