.\" Copyright (C) 2006 Michael Kerrisk <mtk.manpages@gmail.com>
.\"
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.\" Japanese Version Copyright (c) 2006 Akihiro MOTOKI all rights reserved.
.\" Translated 2006-03-13, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
.\"
.TH INVOCATION_NAME 3 2006-04-29 "GNU" "Linux Programmer's Manual"
.\"O .SH NAME
.SH 名前
.\"O program_invocation_name, program_invocation_short_name \- \
.\"O obtain name used to invoke calling program
program_invocation_name, program_invocation_short_name \- \
プログラムの起動に使われた名前を取得する
.\"O .SH SYNOPSIS
.SH 書式
.nf
.\"O .BR "#define _GNU_SOURCE" "         /* See feature_test_macros(7) */"
.BR "#define _GNU_SOURCE" "         /* feature_test_macros(7) 参照 */"
.B #include <errno.h>

.BI "extern char *" program_invocation_name ;
.BI "extern char *" program_invocation_short_name ;
.fi
.\"O .SH DESCRIPTION
.SH 説明
.\"O .I program_invocation_name
.\"O contains the name that was used to invoke the calling program.
.\"O This is the same as the value of
.\"O .I argv[0]
.\"O in
.\"O .IR main (),
.\"O with the difference that the scope of
.\"O .I program_invocation_name
.\"O is global.
.I program_invocation_name
は、呼び出し元プログラムの起動に使用された名前を保持する。
内容は
.IR main ()
の
.I argv[0]
の値と同じだが、
.I program_invocation_name
の方はスコープがグローバルである点が異なる。

.\"O .I program_invocation_short_name
.\"O contains the basename component of name that was used to invoke
.\"O the calling program.
.\"O That is, it is the same value as
.\"O .IR program_invocation_name ,
.\"O with all text up to and including the final slash (/), if any, removed.
.I program_invocation_short_name
は、呼び出し元プログラムの起動に使用された名前の basename 部分を
保持する。つまり、この変数の内容は、最後のスラッシュ (/) とそれより前の
部分がある場合、
.I program_invocation_name
からこの部分を削除したものとなる。

.\"O These variables are automatically initialized by the glibc run-time
.\"O startup code.
これらの変数は glibc のランタイム・スタートアップ・コードで
自動的に初期化される。
.\"O .SH "CONFORMING TO"
.SH 準拠
.\"O These variables are GNU extensions, and should not be
.\"O used in programs intended to be portable.
これらの変数は GNU の拡張であり、
移植性が必要なプログラムでは使用すべきでない。
.\"O .SH NOTES
.SH 備考
.\"O The Linux-specific
.\"O .I /proc/[number]/cmdline
.\"O file provides access to similar information.
Linux 独自のファイル
.I /proc/[number]/cmdline
でも同様の情報を得ることができる。
.\"O .SH SEE ALSO
.SH 関連項目
.BR proc (5)