Kill a running script using the parent process id. $catmyscript.sh while:;do date sleep1 done $ bash myscript.sh Sun Dec 10 00:00:00 PST 2017 Sun Dec 10 00:00:01 PST 2017 Sun Dec 10 00:00:02 PST 2017 Sun Dec 10 00:00:03 PST 2017 ... Find the parent process id in the ...
*) die "Unknown option: $1" ;; *) break ;; esac shift done args=("$@") # check required params and arguments [[ -z "${param-}" ]] && die "Missing required parameter: param" [[ ${#args[@]} -eq 0 ]] && die "Missing script arguments" return 0}parse_pa...
Progress bars Get the list of functions in a script Bypass shell aliases Bypass shell functions Run a command in the backgroundAFTERWORDFOREWORDA collection of pure bash alternatives to external processes and programs. The bash scripting language is more powerful than people realise and most tasks ...
f()for i in "$@"; do echo "$i"; done if语法更短 # One line # Note: The 3rd statement may run when the 1st is true [[ $var == hello ]] && echo hi || echo bye [[ $var == hello ]] && { echo hi; echo there; } || echo bye # Multi line (no else, single stateme...
Is there a way I can open the project in the background (no window) from bash? Here is what I have in a bash script currently, which successfully runs the GenerateReport tool, but also opens up a matlab window showing the project. ...
Based on the ideas given in a Ubuntu forum thread and a template on command line parsing, I wrote a simple script “parallel” that allows you to run virtually any simple command concurrently. Assume that you have a program proc and you want to run something like proc *.jpg using three ...
command >&2把command的标准输出(stdout)重定向到标准错误(stderr)中; scriptname >>filename把scriptname的输出(同>)追加到文件filenmae中,如果文件不存在则创建。 [i]<>filename打开filename这个文件用来读或者写,并且给文件指定i为它的文件描述符(file descriptor),文件不存在就会创建。
Shell Script# centos6.x之前,执行/etc/init.d/*目录下所有脚本运行 --> centos7, systemd命令取代之前的形式 开机启动程序 --> /etc/rc.d/rc.local 目录 (rc--run command, .d -- directory) 重启系统日志记录文件,也是运行shell script (/etc/init.d/rsyslogd restart) ...
Running a command in the background Summary Essential Commands Distinguishing command types Essential Bash builtin commands The type command The echo command The printf command The pwd command Tilde paths The cd command Changing the directory in scripts The set command The declare command The test [...
bgSend to background breakExit from a loop builtinRun a shell builtin bzip2Compress or decompress named file(s) c calDisplay a calendar caseConditionally perform a command catDisplay the contents of a file cdChange Directory cfdiskPartition table manipulator for Linux ...