Linux shell programming : arrays - three different ways of declaring arrays & looping with Linux shell programming : operations on array.Linux shell programming - special shell variables.Linux shell programming - variables and functions (readonly, unset, and functions).Linux - 7 File types : Regular, Directory, Block file, Character device file, Pipe file, Symbolic link file, and Socket file.Linux - sed III (selective printing of certain lines, selective definition of certain lines).Linux - sed II (file spacing, numbering, text conversion and substitution).Linux - sed I (substitution: sed 's///', sed -i).Linux Tips 2 - ctrl a, curl r, tail -f, umask.Prevent or escape interpretation of the next character Run command in the background, Background Processes The shell metacharacters are listed here for reference: Symbolįile substitution wildcard zero or more charactersįile substitution wildcard one characterįile substitution wildcard any character between brackets However, we can also use special characters called metacharacters in a Linux command that the shell interprets rather than passing to the command. The command options, option arguments and command arguments are separated by the space character.

Quotes in ffmpeg command line