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Bash string concatenate possible? [SOLVED]

How to concatenate strings with underscore, newline, whitespace or any other character in bash? How to append substrings in a string in bash or shell script? …

By admin · 6 min read · Shell Scripting

How to properly remove old kernels RHEL/CentOS 8

You can now use dnf command to remove old kernels from RHEL/CentOS 8 Linux. package-cleanup doesn't work any more. Use oldinstallonly with installonly_limit

By admin · 5 min read · CentOS 8

Unlock the Power of Bash Getopts: The Unsung Hero

getopts is a shell builtin which is available in both the regular Bourne shell (sh) and in Bash. It is short abbreviation for "get the options" which you have …

By admin · 20 min read · Shell Scripting

.bashrc vs .bash_profile [Which one to use?]

All rc files are for all shell invocations while the profiles are strictly for interactive shells. when you login via SSH, or via duplicate console, or via …

By admin · 6 min read · Shell Scripting