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·¢ÐÅÈË: wshu (Ê÷ÉϵÄÀÏ»¢), ÐÅÇø: Unix
±ê Ìâ: UNIX FAQ ÖÐÎİæ(Îå)
·¢ÐÅÕ¾: BBS ˮľÇ廪վ (Mon May 19 10:14:57 1997)
±¾ÆªÎÄÕ»شðÒÔÏÂÎÊÌâ:
5.1) shell ÒªÈçºÎ·ÖÀàÄØ£¿
5.2) ÔÚÒ»¸ö shell script ÀïÃæÒªÈçÎ "include" ÁíÒ»¸ö shell script ÄØ£¿
5.3) ÊDz»ÊÇËùÓÐ shell ¶¼ÓÐ alias£¬ÓÐû±ðµÄÌæ´ú·½°¸ÄØ£¿
5.4) ÒªÈçºÎÉ趨 shell µÄ±äÊýÄØ£¿
5.5) ÒªÈçºÎµÃÖªÊÇ·ñÊÇÔÚÒ» interactive shell ÖУ¿
5.6) ÄÇЩÒÔ "." ¿ªÊ¼ÆäµµÃûµÄµµ°¸ÔÚ¸÷ÖÖ shell ÖеÄÓÃ;ΪºÎ£¿
5.7) ÎÒÏëÒªÖªµÀ¸ü¶à¸÷ÖÖ shell µÄÏàÒìÖ®´¦¡£ÇëÖ¸µãÃ÷·¡£
5.1) shell ÒªÈçºÎ·ÖÀàÄØ£¿
Ò»°ãÀ´Ëµ£¬shell ¿ÉÒÔ·Ö³ÉÁ½Àà¡£µÚÒ»ÀàÊÇÓÉ Bourne shell ÑÜÉú³öÀ´µÄ°üÀ¨
sh£¬ksh£¬bash£¬Óë zsh¡£µÚ¶þÀàÊÇÓÉ C shell ÑÜÉú³öÀ´µÄ£¬°üÀ¨ csh Óë
tcsh¡£³ý´ËÖ®Í⻹ÓÐÒ»¸ö rc£¬ÓÐÈËÈÏΪ¸Ã×Ô³ÉÒ»À࣬ÓÐÈËÈÏΪ¸Ã¹éÀàÔÚ
Bourne shell¡£
°ÑÉÏÃæµÄ·ÖÀà·¨¼Çס£¬¾Í¿ÉÒÔд³öËùÓÐ Bourne shellÀàµÄ shell »òÊÇËùÓÐ C
shell ÀàµÄ shell ¶¼¿ÉÓÃµÄ script¡£
5.2) ÔÚÒ»¸ö shell script ÀïÃæÒªÈçºÎ "include" ÁíÒ»¸ö shell script ÄØ£¿
ÓÉ Bourne shell ÑÜÉúÕß(°üÀ¨ rc)Óà "." Õâ¸öÖ¸Áî¡£ÓÉ C shell ÑÜÉúÕßÔòʹ
ÓÃ "source"¡£
5.3) ÊDz»ÊÇËùÓÐ shell ¶¼ÓÐ alias£¬ÓÐû±ðµÄÌæ´ú·½°¸ÄØ£¿
³ýÁË sh Í⣬Ö÷ÒªµÄ shell ¶¼ÓÐ alias£¬²»¹ýÓ÷¨²»´óÒ»Ñù¡£ÀýÈçÓÐЩ alias
²»½ÓÊܲÎÊý¡£
Bourne shell ÀàÖÐ shell function ËäÈ»Ñϸñ˵À´²»ÊÇ alias£¬²»¹ýÒ²²î²»¶àÁË¡£
Shell function »¹¿ÉÒÔ×öµ½Ò»Ð© alias Ëù×ö²»µ½µÄÊÂÇé¡£´Ó Version 7 Unix
µÄÑÜÉú³öÀ´µÄϵͳ(°üÀ¨ System III Óë 4.2BSD) ÀïÃæµÄ Bourne shell ûÓÐ
shell function¡£System V Óë 4.3BSD µÄ sh ¶¼ÓÐ shell function¡£
ÓÃ unalias À´È¥³ý alias, ÓÃ unset À´È¥³ý shell function¡£
5.4) ÒªÈçºÎÉ趨 shell µÄ±äÊýÄØ£¿
ÔÚ C shell ÀàµÄ shell ÖÐÓà "set variable=value" À´É趨ֻ¸øÕâ¸ö shell
¿´µÄ±äÊý£¬Óà "setenv variable value" À´É趨»·¾³±äÊý¡£ÒªÈ¥³ý±äÊýÔòÒÔ
unset Óë unsetenv Ϊ֮¡£ÔÚ Bourne shell ÀàµÄ shell ÖÐÔòÓÃ
"variable=value" À´É趨±äÊý£¬ÈôÒª½«Ò»±äÊý²¢³É»·¾³±äÊýÔòÓà "export
VARIABLE_NAME"¡£ÒªÈ¥³ýÒ»¸ö±äÊýÔòÓà unset¡£
5.5) ÒªÈçºÎµÃÖªÊÇ·ñÊÇÔÚÒ» interactive shell ÖУ¿
ÔÚ C shell ÀàÖУ¬¿´¿´ $prompt Õâ¸ö±äÊý±ãÖª·ÖÏþ¡£
ÔÚ Bourne shell ÀàÖУ¬¿ÉÒÔ¿´ $PS1 Õâ¸ö±äÊý£¬²»¹ý×îºÃÊǼì²é $- Õâ¸ö±ä
Êý¡£¼ÙÈç $- ÀïÓÐ i£¬ÄǾͱíʾÊÇÔÚ interactive shell ÖС£×÷·¨ÈçÏ£º
case $- in
*i*) # do things for interactive shell
;;
*) # do things for non-interactive shell
;;
esac
5.6) ÄÇЩÒÔ "." ¿ªÊ¼ÆäµµÃûµÄµµ°¸ÔÚ¸÷ÖÖ shell ÖеÄÓÃ;ΪºÎ£¿
ÏÂÃæµÄ˵Ã÷»òÐí²»¾¡ÍêÕû£¬µ«Ó¦¸Ã½²µÄ¶¼½²ÁË¡£
csh
ÓÐһЩ°æ±¾ÔÚϵͳÖÐËùÓÐʹÓÃÕß¶¼±ØÐë¶ÁÈ¡µÄ .cshrc Óë .login¡£²»
¹ý£¬Ã¿Ò»¸ö°æ±¾·ÅÖÃÕâЩµµ°¸µÄµØ·½²»´óÏàͬ¡£
Æô¶¯ (ÒÀÕÕËùÁÐ˳Ðò):
.cshrc - ÿ´Î¶¼»á¶ÁÈ¡
.login - login shell ²Å»á¶ÁÈ¡
½áÊøÖ®Ç°:
.logout - login shells.
ÆäËû:
.history - ´¢´æhistory (¸ù¾Ý $savehist µÄÖµ¾ö¶¨´óС).
tcsh
Æô¶¯ (ÒÀÕÕËùÁÐ˳Ðò):
/etc/csh.cshrc - ÿ´Î¶¼»á¶ÁÈ¡
/etc/csh.login - login shells ²Å»á¶ÁÈ¡
.tcshrc - ÿ´Î¶¼»á¶ÁÈ¡
.cshrc - ¼ÙÈçûÓÐ .tcshrc Ôڵϰ
.login - login shells ²Å»á¶ÁÈ¡
½áÊøÖ®Ç°:
.logout - login shells ²Å»á¶ÁÈ¡.
ÆäËû:
.history - saves the history (based on $savehist).
.cshdirs - saves the directory stack.
sh
Æô¶¯ (ÒÀÕÕËùÁÐ˳Ðò):
/etc/profile - login shell ²Å»á¶ÁÈ¡
.profile - login shell ²Å»á¶ÁÈ¡
½áÊøÖ®Ç°:
any command (or script) specified using the command:
trap "command" 0
ksh
Æô¶¯ (ÒÀÕÕËùÁÐ˳Ðò):
/etc/profile - login shells ²Å»á¶ÁÈ¡
.profile - login shells ²Å»á¶ÁÈ¡
$ENV - always, if it is set.
½áÊøÖ®Ç°:
Èç¹ûÄãÓÃÁË trap "command" 0£¬Ôò½áÊøÖ®¼Ê»áÖ´ÐÐ "command" (
bash
Æô¶¯ (ÒÀÕÕËùÁÐ˳Ðò):
/etc/profile - login shell ²Å»á¶ÁÈ¡
.bash_profile - login shell ²Å»á¶ÁÈ¡
.profile - Èç¹ûûÓÐ .bash_profile£¬Ôò»áÔÚ login ʱ¶ÁÈ¡
.bashrc - interactive non-login shell ²Å»á¶ÁÈ¡
$ENV - ÈôÓÐÉ趨Ôò¶Áȡ֮
½áÊøÖ®Ç°:
.bash_logout - login shell ¶Áȡ֮
ÆäËû:
.inputrc - Readline ³õʼ»¯Ö®Ê±
zsh
Æô¶¯ (ÒÀÕÕËùÁÐ˳Ðò):
.zshenv - ÈôÎÞ -f ¾Í»á¶ÁÈ¡
.zprofile - login shell Å»á¶ÁÈ¡
.zshrc - interactive shell ÈôÎÞ -f ¾Í»á¶ÁÈ¡
.zlogin - login shell ½áÊøÖ®Ç°
½áÊøÖ®Ç°:
.zlogout - login shell ²Å»á¶ÁÈ¡
rc
Æô¶¯ (ÒÀÕÕËùÁÐ˳Ðò):
.rcrc - login shell ²Å»á¶ÁÈ¡
5.7) ÎÒÏëÒªÖªµÀ¸ü¶à¸÷ÖÖ shell µÄÏàÒìÖ®´¦¡£ÇëÖ¸µãÃ÷·¡£
Äã¿ÉÒÔÓà anonymous ftp ÔÚÏÂÁеصãÈ¡µÃÒ»·ÝÓÐ¹Ø sh¡¢tcsh¡¢ksh¡¢
bash¡¢zsh Óë rc µÄÏêϸ±È½Ï¡£
cs.uwp.edu (131.210.1.4):pub/vi/docs/shell-101.BetaA.Z
utsun.s.u-tokyo.ac.jp:misc/vi-archive/docs/shell-101.BetaA.Z
Õâ¸öµµ°¸ÖбȽÏÁ˺ô½Ð shell ʱµÄÆìºÅ¡¢³ÌʽµÄÎÄ·¨¡¢Êä³ö/Èë֮תÏò¡¢Óë»·
¾³±äÊý¡£²»¹ýÕâ¸öµµ°¸²¢²»ÌÖÂÛÒÔ "." ΪµµÃû¿ªÍ·µÄµµ°¸ÒÔ¼°»·¾³±äÊýÓë
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