PHP fwrite() function used to write data to file. This function take three arguments 1. File specifies filename to write…
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Rsync is a powerful and versatile tool for synchronizing files and directories between two different locations. By default, Rsync uses…
cURL is an open source command line tool and library for transferring data from remote systems. cURL support wide range…
This is good to test a file has enough permission to do read, write or execute operations. For a good…
In Linux, an empty file is a file that has a size of zero bytes. This means that the file…
Some times we faced issue some think like “Too many open files” on heavy load server. It means our server…
Syntax: sed -i ‘/string_to_delete/d’ /path/to/file SED is a Stream Editor having the capability to remove lines from files containing a…
Sometimes you may be required to count total lines in a file in Unix/Linux systems. This tutorial helps you with…
If you need to verify if a file or directory exists, you can use the test command. It will return…