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eof    
n. 文件结束

文件结束

End Of File

1. The {out-of-band} value returned by {C}'s sequential
character-input functions (and their equivalents in other
environments) when end of file has been reached. This value
is -1 under {C} libraries postdating V6 Unix, but was
originally 0.

2. The keyboard character (usually control-D, the ASCII EOT
(End Of Transmission) character) that is mapped by the {Unix}
terminal driver into an end-of-file condition.

[{Jargon File}]

(1995-01-18)

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  • linux - How does cat lt; lt; EOF work in bash? - Stack Overflow
    The cat <<EOF syntax is very useful when working with multi-line text in Bash, eg when assigning multi-line string to a shell variable, file or a pipe Examples of cat <<EOF syntax usage in Bash: 1 Assign multi-line string to a shell variable $ sql=$(cat <<EOF SELECT foo, bar FROM db WHERE foo='baz' EOF )
  • linux - What does lt; lt;EOF do? - Super User
    Instead of using cntrl+d, Cat<<EOF command can be used in this scenario and type EOF at the end of the paragraph The system will consider EOF as the End of the para Instead of EOF, any alphabets can be used eg) CAT<<ZZZ New txt (Press Enter) Here, the User will be prompted to type the input At the end of the para, type ZZZ, then press enter
  • What is different between lt; lt;-EOF and lt; lt;EOF in bash script?
    If you use <<-EOF, I recommend the man page of the Bourne Shell: If, however, the hyphen (-) is appended to <<: leading tabs are stripped from word before the shell input is read (but after parameter and command substitution is done on word);
  • End of File (EOF) in C - Stack Overflow
    If the result was not equal to EOF, then the result is true, because things that are not equal are not equal If the result was equal to EOF, then the result is false, because things that are equal are not (not equal) The call to getchar() returns EOF when you reach the "end of file" As far as C is concerned, the 'standard input' (the data
  • How does ifstreams eof () work? - Stack Overflow
    "The EOF flag is only set after a read operation reaches the end of the file " is exactly the statement that causes confusing about EOF The EOF flag is only set after a read operation attempts to read past the end of the file The last bit is critical: If I read 3 bytes from a file 3 bytes long, EOF is false, until I attempt another read –
  • How would you represent EOF in bash? - Stack Overflow
    That way, when reader's getc senses an empty write queue and returns the EOF (non char value) to signal it's closed, user sub-routines such as the `cat' can shift the argument and eventually quit Thus renders the EOF a stream condition or file marker, no value in the range of ``char''
  • c - Im trying to understand getchar() != EOF - Stack Overflow
    Value of EOF is by default -1 ((c = getchar()) != EOF) As long as the value stays something other than EOF or, in other words, as long as the condition stays true, the loop will continue to iterate Once the value becomes EOF the value of the entire condition will be 0 and it will break the loop
  • linux - What is EOF!! in the bash script? - Stack Overflow
    custom_command << EOF!! I want to ask what EOF!! is in the bash script I did find EOF with google, but google will ignore the "!!" automatically, so I cannot find EOF!! I know the end of the file token, but I don't exactly know what it means with the "!!" in the script Is this a mark to force something to do something like in vim's wq! ?





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