with man bc
、で始まる行がありますbc(1)
。
bc(1) bc(1)
NAME
bc - An arbitrary precision calculator language
一部の Unix ブックでは、次の質問のように (1) で Unix コマンドを説明します。https://stackoverflow.com/questions/8402181/how-do-i-get-bc1-to-print-the-leading-zero。どういう意味ですか?
答え1
マニュアルの章番号です。
からman man
:
The table below shows the section numbers of the manual followed by the types of pages they contain.
1 Executable programs or shell commands
2 System calls (functions provided by the kernel)
3 Library calls (functions within program libraries)
4 Special files (usually found in /dev)
5 File formats and conventions eg /etc/passwd
6 Games
7 Miscellaneous (including macro packages and conventions), e.g. man(7), groff(7)
8 System administration commands (usually only for root)
9 Kernel routines [Non standard]