英语词汇“internal field separators”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	internal field separators
释义	internal field separators internal field separators (operating system)($IFS) A predefined environment variablein the Unix Bourne shell whose default value is thethree-character string containing space, tab and line feed. Any string of one or more of these charactersseparates the command and each of its arguments in a commandline. $IFS also tells the shell's built-in read command where tosplit an input line when reading into multiple variables.E.g. setting IFS=: would be appropriate for reading a filewith ':'-separated fields, such as /etc/passwd.
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