linuxÔõô±àдshell¾ç±¾
±àд linux shell ½ÅÌìÖ°Ê®²½£ºÑ¡Ôñ¾ç±¾±à¼Æ÷²¢Ê¹Óà .sh À©Õ¹Ãû½¨Éè¾ç±¾¡£Ö¸¶¨ shebang ÐÐÒÔÖ¸¶¨ËùÓà shell£¨ÀýÈç #!/bin/bash£©¡£Ê¹Óà = ÔËËã·û½ç˵±äÁ¿£¨ÀýÈç my_name=”john doe”£©¡£Ê¹Óà # ×¢ÊÍ·ûÌí¼Ó×¢ÊÍÒÔÚ¹ÊÍ´úÂ롣ʹÓà shell ÏÂÁîÖ´ÐвÙ×÷£¨ÄÚÖûòÍⲿ£©¡£Ê¹Óà if¡¢else ºÍ for µÈÓï¾ä¿ØÖÆÁ÷³Ì¡£½«´úÂë¿é·Ö×éµ½º¯ÊýÖÐÒÔʵÏÖÖØÓúÍÄ£¿é»¯¡£Ê¹Óà bash -x script.sh ÏÂÁîÖð³ÌÐòÊԾ籾¡£Ê¹Óà chmod +x sc
ÔõÑù±àд Linux Shell ¾ç±¾
Shell ¾ç±¾ÊÇ×Ô¶¯»¯ Linux ʹÃüµÄÇ¿Ê¢¹¤¾ß¡£ÒÔÏÂÊDZàд shell ¾ç±¾µÄ·Ö²½Ö¸ÄÏ£º
°ì·¨ 1£ºÑ¡Ôñ¾ç±¾±à¼Æ÷
ʹÓÃÎı¾±à¼Æ÷£¨ÀýÈç nano¡¢vi »ò gedit£©½¨Éè shell ¾ç±¾¡£È·±£ÎļþÀ©Õ¹ÃûΪ .sh¡£
°ì·¨ 2£º±àд Shebang ÐÐ
¾ç±¾µÄµÚÒ»ÐбØÐèÖ¸¶¨ËùÓà shell¡£¹ØÓÚ Bash shell£¬Ó﷨Ϊ£º
#!/bin/bash
µÇ¼ºó¸´ÖÆ
°ì·¨ 3£º½ç˵±äÁ¿
ʹÓà = ÔËËã·û½«Öµ·ÖÅɸø±äÁ¿¡£ÀýÈ磺
my_name="John Doe" age=30
µÇ¼ºó¸´ÖÆ
°ì·¨ 4£ºÌí¼Ó×¢ÊÍ
ʹÓà # ×¢ÊÍ·ûÌí¼Ó×¢ÊÍÒÔÚ¹Ê;籾ÖеĴúÂë¡£ÀýÈ磺
# This line prints the welcome message
µÇ¼ºó¸´ÖÆ
°ì·¨ 5£º½¨ÉèÏÂÁî
ʹÓà shell ÄÚÖÃÏÂÁî»òÍâÊÖÏÂÁîÖ´ÐвÙ×÷¡£ÀýÈ磺
echo "Hello, world!" # ÄÚÖÃÏÂÁî ls -l # ÍâÊÖÏÂÁî
µÇ¼ºó¸´ÖÆ
°ì·¨ 6£º¿ØÖÆÁ÷
ʹÓà if¡¢else ºÍ for µÈÓï¾ä¿ØÖƾ籾ÖеÄÁ÷³Ì¡£ÀýÈ磺
if [ "$age" -gt 18 ]; then echo "You are an adult." else echo "You are a minor." fi
µÇ¼ºó¸´ÖÆ
°ì·¨ 7£ºº¯Êý
½«´úÂë¿é·Ö×éµ½º¯ÊýÖÐÒÔÖØÓúÍÄ£¿é»¯¡£ÀýÈ磺
my_function() { echo "This is a function." } my_function
µÇ¼ºó¸´ÖÆ
°ì·¨ 8£ºµ÷ÊԾ籾
ʹÓà bash -x script.sh ÏÂÁîÖð³ÌÐòÊԾ籾¡£Õ⽫´òӡÿÐÐÏÂÁî¼°ÆäÊä³ö¡£
°ì·¨ 9£ºÊ¹¾ç±¾¿ÉÖ´ÐÐ
ʹÓà chmod +x script.sh ÏÂÁîʹ¾ç±¾¿ÉÖ´ÐС£
°ì·¨ 10£ºÔËÐо籾
ʹÓà ./script.sh ÏÂÁîÔËÐо籾¡£Í¨¹ýÖ¸¶¨ÊäÈë»òÊä³öÖض¨Ïò£¬¿ÉÒÔ´ÓÏÂÁîÐÐת´ï²ÎÊý»òÖض¨ÏòÊä³ö¡£
ÒÔÉϾÍÊÇlinuxÔõô±àдshell¾ç±¾µÄÏêϸÄÚÈÝ£¬¸ü¶àÇë¹Ø×¢±¾ÍøÄÚÆäËüÏà¹ØÎÄÕ£¡