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How do I read a file line by line using KSH shell scripting under UNIX like operating systems?

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How do I find out all empty file under Linux and UNIX operating systems?

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I’m using portmaster to manage my ports without external databases. However, when I run the try to run pkg_version -l ‘< ‘, I’m getting the following error: pkg_version: corrupted record (pkgdep line without argument), ignoring How do I fix this problem?

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How do I extract a single file or directory form a tarball under UNIX / Linux shell prompt? How do I restore a single file from /dev/st0 tape device?

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Q. How do I find out the name of file / directory owner under UNIX / Linux operating systems?

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While building Apache port I was presented with a menu from which I selected certain build options. However, certain option giving out error as follows:
===> apache-2.2.8 mod_mem_cache requires WITH_THREADS.
*** Error code 1

All I wanted to do is disable mod_mem_cache and build Apache again. Unfortunately, it is not allowing me to clear out configuration option. How do I remove all selected options and allow me to start over again?

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Q. I’m using CentOS Linux 5 server with ext3 on /disk2 (/dev/sdb1). How do I improve my file server performance. I’ve many large files in directories and how do I speed up access time?

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