Read e-book online Just Enough Unix PDF

By Paul Andersen

ISBN-10: 0256212767

ISBN-13: 9780256212761

Simply enough UNIX offers a quick and cheap creation to the UNIX working process. the second one variation of this article is going to mirror adjustments and updates to the UNIX curriculum that experience taken position because the book's unique booklet.

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Please be careful while executing the following command as you don’t want to delete the files by mistake. The best practice is to execute the same command with ls –l to make sure you know which files will get deleted when you execute the command with rm. gz -size +100M -exec rm -f {} \; How to archive all the files that are not modified in the last x number of days? tar. tar` On a side note, you can perform lot of file related activities (including finding files) using midnight commander GUI, a powerful text based file manager for Unix.

Display output of any command in the prompt You can display output of any Linux command in the prompt. com Hack 37. Change foreground color of the prompt Display prompt in blue color, along with username, host and current directory information $ export PS1="\e[0;34m\u@\h \w> \e[m " [Note: This is for light blue prompt] $ export PS1="\e[1;34m\u@\h \w> \e[m " [Note: This is for dark blue prompt] o \e[ - Indicates the beginning of color prompt o x;ym - Indicates color code. Use the color code values mentioned below.

1. When you are trying to delete too many files using rm, you may get error message: /bin/rm Argument list too long – Linux. Use xargs to avoid this problem. log’ -print0 | xargs -0 rm -f 2. conf file under /etc/. There are different ways to get the same result. Following example is only to demonstrate the use of xargs. The output of the find command in this example is passed to the ls –l one by one using xargs. conf" | xargs ls –l 3. If you have a file with list of URLs that you would like to download, you can use xargs as shown below.

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Just Enough Unix by Paul Andersen

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