-r FILE (conditional operator)

true if the file exists and is readable by you, i.e. the current user.

Examples

Different ways to test if a file is readable:
1
2
3
4
test -r ~/file && echo "readable"
[ -r ~/file ] && echo "readable"
# Bash
[[ -r ~/file ]] && echo "readable"
BashSupport Pro 是一个 支持 -r 的 Bash 集成开发工具 – 马上试用
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