Simple Bash Function to Repeat a Command N times with Retries
Sometimes we want to repeat a command on Linux, and we can use the following BASH function to repeat a command for a number of times: function repeat() { …
Tag: Bash Function
How to Extract a Domain Name from a Full URL in BASH?
To extract the domain name from a full URL in a Bash script, you can use parameter expansion, sed, awk, or grep. Each method has its own benefits, and …
BASH Function to Error Warnings and Messages with Terminal Colours
We sometimes need in BASH script to display messages with different format/colour to terminal console. For example, the warnings messages are blue, and error messages are red. We can …
BASH Function to Get Memory Information via AWK
On Linux, we can cat the file “/proc/meminfo” to display memory related information: $ cat /proc/memoinfo MemTotal: 32939372 kB MemFree: 31155452 kB MemAvailable: 31269760 kB Buffers: 242964 kB Cached: …
BASH Function to Check if sudo Available
sudo is the command to allow normal users perform some escalated operations. We can use the following BASH function to check to see if the sudo command is available. …
