Questions about shell command substitution (such as $(command) or `command`), its mechanism, correct syntax etc. Not to be confused with aliasing.
Command substitution is a facility that allows a command to be run and its output to be pasted back on the command line as arguments to another command.
Examples:
vi `fgrep -l malloc *.c`
vi $(fgrep -l malloc *.c)
Read more:
- Command substitution at Wikipedia
- Command Substitution on mywiki.wooledge.org
