I need to call the function called foo() using echo command in the same statement. How do I all or invoke the function using the echo statement?
How do I parse my Linux servers IP address using a Bash shell?
How do I use awk pattern scanning and processing language under bash scripts? Can you provide a few examples?
How do I a print line after matching /regex/ using awk under Linux / UNIX operating systems? I’d like print the line immediately after a line that matches /regex/ but not the line that matches itself.
am a new Unix system user with a bash as a default shell. I can append text to a file using >> operator but how do I prepend a text to a file? I want the opposite operation of >>? How can I prepend some data to a text file?
How do I read a file line by line using awk utility under Unix / Linux operating systems?