Linux and Unix Commands

Tips and tricks about Linux, OS X, *BSD and Unix commands. Includes commands, syntax, hacks and much more for both new users and sysadmins ( rss feed ).

I am a new Unix system shell user. I need to find and list all hidden files including directories on a Linux or Unix-like system. How can I recursively list all hidden files and directories? How do I save result in a text file?

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Sometime my VLC application gets crashed on a Mac OS X system. The screen goes blank and VLC stays hang running on my desktop or MacBook. How can I solve this issue and quit an unresponsive VLC application on a Mac OS X without a hard reboot?

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chroot command

I am a new Linux and Unix user. How do I change the root directory of a command? How do I change the root directory of a process such as web-server using a chroot command to isolate file system? How do I use a chroot to recover password or fix the damaged Linux/Unix based environment?

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I know wget can resume a failed download. I am on a Mac OS X and do now want to install wget command. How can I resume a failed download using curl command on Linux or Unix-like systems?

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I‘m a new Ubuntu Linux user. This seems like a newbie question, but I can not seem to find examples to copy files on Ubuntu. How do I copy file to another directory on Ubuntu Linux using command line terminal application? How can I copy files via terminal on Ubuntu Linux desktop?

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I am a new Unix system admin. How do I find ouw who has recently use the Linux or Unix-like server? Which terminals they used, and when they logged in and out of the my server?

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whereis command

I am a new Linux and Unix-like system command line user. How do I find and locate the binary, source, and manual page files for a given command?

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