Bash examine if string begins with character corresponding to #

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My bash shell script learn a config file line-by-line utilizing a bash whereas loop. I must examine if a string saved in $var begins...

How do I examine if a port is in use on Linux?

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I am a brand new Linux system person. I would like to search out out which course of is listening on a port on...

5 Command Line Instruments to Discover Information Rapidly in Linux

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Looking or discovering recordsdata on a Linux system from the terminal generally is a little of a problem particularly for newbies. Nonetheless, there are...

How you can set up htop on RHEL Eight utilizing yum

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I am a brand new consumer of Crimson Hat Enterprise Linux Eight. How do I set up htop on RHEL Eight utilizing the yum...

Bash shell discover out if a variable has NULL worth OR not

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I am a brand new to shell scripting. How do I test for NULL worth in a Linux or Unix shell scripts? You...

AWS Lightsail improve Ubuntu 16.04 LTS to 18.04 LTS

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By default, Lightsail will set up Ubuntu 16.04 LTS. How do I improve to Ubuntu Linux 18.04 LTS when utilizing AWS Lightsail cloud server?...

The best way to Watch TCP and UDP Ports in Actual-time

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In software program phrases, particularly on the working system degree, a port is a logical assemble that identifies a particular course of/software or a...

Bash get exit code of command on a Linux / Unix

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I am a brand new Linux system person. How do I get the exit code of a command? How do I get the exit...

Easy methods to test operating course of in Ubuntu utilizing command line

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I am a brand new sysadmin for the Ubuntu working system. How do I test operating course of in Ubuntu utilizing the command line...

How To Set up MariaDB on RHEL Eight

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I am a brand new MariaDB and RHEL Eight consumer. How do I set up MariaDB on RHEL Eight server utilizing the yum command?Introduction...