2012年9月14日 · In Bash, there appear to be several variables which hold special, consistently-meaning values. For instance, ./myprogram &; echo $! will return the PID of the process which backgrounded myprog...

2024年9月16日 · UNIX®, an open standard owned and managed by The Open Group, is an enabler of key technologies and delivers reduced total cost of ownership, increased IT agility, stability, and interoperability in hetero¬geneous environments enabling business and market innovation across the globe.

2011年11月22日 · I'm using mac/linux and I know that ctrl-z stops the currently running command in terminal, but I frequently see the process is still running when i check the system monitor. What is the right way to

2011年6月23日 · The definition of unix time and the epoch date went through a couple of changes before stabilizing on what it is now. But it does not say why exactly 1/1/1970 was chosen in the end.

2012年7月20日 · To list any process listening to the port 8080: lsof -i:8080 To kill any process listening to the port 8080: kill $(lsof -t -i:8080) or more violently: kill -9 $(lsof -t -i:8080) (-9 corresponds to the SIGKILL - terminate immediately/hard kill signal: see List of Kill Signals and What is the purpose of the -9 option in the kill command?. If no signal is specified to kill, the …

2009年5月4日 · First, if you look at the rm command man page (man rm under most Unix) you notice that –r means "remove the contents of directories recursively". So, doing rm -r . alone would delete everything in the current directory and everything bellow it.

I know this is a super old question, but just wanted to share that Powershell 7's Get-Date has native support for converting Unix time now (which I discovered thanks to this question). By default, it will convert it to local time. PS> Get-Date -UnixTimeSeconds 1338194440 Monday, May 28, 2012 4:40:40 AM PS> (Get-Date -UnixTimeSeconds 1338194440 ...

2012年11月9日 · I have two directories with the same list of files. I need to compare all the files present in both the directories using the diff command. Is there a simple command line option to do it, or do I h...

2009年12月18日 · I was wondering if there is a way to comment out a set of lines in a shell script. How could I do that? We can use /* */ in other programming languages. This is most useful when I am converting/using/

2011年5月5日 · How can I recursively find all files in current and subfolders based on wildcard matching?