-w FILE (conditional operator)

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

Examples

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