{"id":178,"date":"2013-06-09T10:04:32","date_gmt":"2013-06-09T02:04:32","guid":{"rendered":"http:\/\/www.zyuns.com\/?p=178"},"modified":"2015-02-15T20:59:41","modified_gmt":"2015-02-15T12:59:41","slug":"wo-de-yi-xie-jian-dan-de-shell-jiao-ben-shi-li","status":"publish","type":"post","link":"https:\/\/www.siediyer.cn\/?p=178","title":{"rendered":"\u6211\u7684\u4e00\u4e9b\u7b80\u5355\u7684shell\u811a\u672c\u5b9e\u4f8b"},"content":{"rendered":"
\n

\u81ea\u5df1\u5199\u4e86\u4e00\u4e0b\u5c0f\u7684shell\u5b9e\u4f8b\uff0c\u867d\u7136\u5f88\u5c0f\uff0c\u4f46\u6240\u6709\u7684\u5927\u7684\u7a0b\u5e8f\u90fd\u662f\u7531\u5c0f\u7684\u6a21\u5757\u5806\u79ef\u8d77\u6765\u7684\uff0c\u7a0b\u5e8f\u5458\u4e00\u5b9a\u8981\u61c2\u5f97\u4e00\u79cd\u811a\u672c\u7684\u4e66\u5199\uff0c\u800c\u6211\uff0c\u53ea\u4f1a\u5728linux\u4e0b\u5de5\u4f5c\uff0c\u6240\u4ee5\u5c31\u53ea\u80fd\u5199linux\u7684shell\u811a\u672c\u4e86\uff0c\u5475\u5475\uff0c\u672c\u6587\u4f1a\u9646\u7eed\u66f4\u65b0\uff0c\u7ed9\u81ea\u5df1\u52a0\u6cb9\uff01<\/p>\n

1.\u6a21\u62dflinnux\u767b\u5f55shell<\/p>\n

#\/bin\/bash
\necho -n “login:”
\nread name
\necho -n “password:”
\nread passwd
\nif [ $name = “cht” -a $passwd = “abc” ];then
\necho “the host and password is right!”
\nelse echo “input is error!”
\nfi<\/p>\n

2.\u6bd4\u8f83\u4e24\u4e2a\u6570\u5927\u5c0f<\/p>\n

#\/bin\/bash
\necho “please enter two number”
\nread a
\nread b
\nif test $a -eq $b
\nthen echo “NO.1 = NO.2”
\nelif test $a -gt $b
\nthen echo “NO.1 > NO.2”
\nelse echo “NO.1 < NO.2”
\nfi<\/p>\n

3.\u67e5\u627e\/root\/\u76ee\u5f55\u4e0b\u662f\u5426\u5b58\u5728\u8be5\u6587\u4ef6<\/p>\n

#\/bin\/bash
\necho “enter a file name:”
\nread a
\nif test\u00a0 -e \/root\/$a
\nthen echo “the file is exist!”
\nelse echo “the file is not exist!”
\nfi<\/p>\n

4.for\u5faa\u73af\u7684\u4f7f\u7528<\/p>\n

#\/bin\/bash
\nclear
\nfor num in 1 2 3 4 5 6 7 8 9 10
\ndo
\necho “$num”
\ndone<\/p>\n

5.<\/p>\n

#\/bin\/bash
\necho “Please enter a user:”
\nread a
\nb=$(whoami)
\nif test $a = $b
\nthen echo “the user is running.”
\nelse echo “the user is not running.”
\nfi<\/p>\n

6.\u5220\u9664\u5f53\u524d\u76ee\u5f55\u4e0b\u5927\u5c0f\u4e3a0\u7684\u6587\u4ef6<\/p>\n

#\/bin\/bash
\nfor filename in `ls`
\ndo
\nif test -d $filename
\nthen b=0
\nelse
\na=$(ls -l $filename | awk ‘{ print $5 }’)
\nif test $a -eq 0
\nthen rm $filename
\nfi
\nfi
\ndone<\/p>\n

7.\u5982\u679c\/export\/um_lpp_source\u4e0b\u6709\u6587\u4ef6\uff0c\u90a3\u4e48\u5c06\u5176\u6587\u4ef6\u7cfb\u7edf\u5927\u5c0f\u6539\u4e3a3G<\/p>\n

#\/bin\/bash
\nwhile line=`ls \/export\/um_lpp_source`
\ndo
\nif test $line=””
\nthen\u00a0 echo “NULL”
\nsleep 1
\nelse echo $line
\nchfs -a size=3G \/export\/um_lpp_source
\nexit 0
\nfi
\ndone<\/p>\n

 <\/p>\n

8.\u6d4b\u8bd5IP\u5730\u5740<\/p>\n

#\/bin\/bash
\nfor i in\u00a0 1 2 3 4 5 6 7 8 9
\ndo
\necho “the number of $i computer is ”
\nping -c 1 192.168.0.$i
\ndone<\/p>\n

9.\u5982\u679ctest.log\u7684\u5927\u5c0f\u5927\u4e8e0\uff0c\u90a3\u4e48\u5c06\/opt\u76ee\u5f55\u4e0b\u7684*.tar.gz\u6587\u4ef6<\/p>\n

#\/bin\/sh
\na=2
\nwhile name=”test.log”
\ndo
\nsleep 1
\nb=$(ls -l $name | awk ‘{print $5}’)
\nif test $b -ge $a
\n#then echo “OK”
\nthen `cp \/opt\/*.tar.gz .`
\nexit 0
\nfi
\ndone<\/p>\n

10.\u6253\u5370\u8bfb\u53d6\u7684\u5185\u5bb9\uff0c\u4e3a\u4e0b\u9762\u7684\u4f8b\u5b50\u505a\u51c6\u5907<\/p>\n

#\/bin\/bash
\nwhile read name
\ndo
\necho $name
\ndone<\/p>\n

11.\u4ece0.sh\u4e2d\u8bfb\u53d6\u5185\u5bb9\u5e76\u6253\u5370<\/p>\n

#\/bin\/bash
\nwhile read line
\ndo
\necho $line
\ndone < 0.sh<\/p>\n

12.\u8bfb\u53d6a.c\u4e2d\u7684\u5185\u5bb9\u5e76\u505a\u52a01\u8fd0\u7b97<\/p>\n

#\/bin\/bash
\ntest -e a.c
\nwhile read line
\ndo
\na=$(($line+1))
\ndone < a.c
\necho $a<\/p>\n

13.\u666e\u901a\u65e0\u53c2\u6570\u51fd\u6570<\/p>\n

#\/bin\/bash
\np ()
\n{
\necho “hello”
\n}
\np<\/p>\n

14.\u7ed9\u51fd\u6570\u4f20\u9012\u53c2\u6570<\/p>\n

#\/bin\/bash
\np_num ()
\n{
\nnum=$1
\necho $num
\n}
\nfor n in $@
\ndo
\np_num $n
\ndone<\/p>\n

15.\u521b\u5efa\u6587\u4ef6\u5939<\/p>\n

#\/bin\/bash
\nwhile :
\ndo
\necho “please input file’s name:”
\nread a
\nif test -e \/root\/$a
\nthen
\necho “the file is existing Please input new file name:”
\nelse
\nmkdir $a
\necho “you aye sussesful!”
\nbreak
\nfi
\ndone<\/p>\n

16.\u83b7\u53d6\u672c\u673aIP\u5730\u5740<\/p>\n

#\/bin\/bash
\nifconfig | grep “inet addr:” | awk ‘{ print $2 }’| sed ‘s\/addr:\/\/g’<\/p>\n

17.\u67e5\u627e\u6700\u5927\u6587\u4ef6<\/p>\n

#\/bin\/bash
\na=0
\nfor\u00a0 name in *.*
\ndo
\nb=$(ls -l $name | awk ‘{print $5}’)
\nif test $b -ge $a
\nthen a=$b
\nnamemax=$name
\nfi
\ndone
\necho “the max file is $namemax”<\/p>\n

18.\u67e5\u627e\u5f53\u524d\u7f51\u6bb5\u5185IP\u7528\u6237\uff0c\u91cd\u5b9a\u5411\u5230ip.txt\u6587\u4ef6\u4e2d<\/p>\n

#\/bin\/bash
\na=1
\nwhile :
\ndo
\na=$(($a+1))
\nif test $a -gt 255
\nthen break
\nelse
\necho $(ping -c 1 192.168.0.$a | grep “ttl” | awk ‘{print $4}’| sed ‘s\/:\/\/g’)
\nip=$(ping -c 1 192.168.0.$a | grep “ttl” | awk ‘{print $4}’| sed ‘s\/:\/\/g’)
\necho $ip >> ip.txt
\nfi
\ndone<\/p>\n

19.\u6253\u5370\u5f53\u524d\u7528\u6237<\/p>\n

#\/bin\/bash
\necho “Current User is :”
\necho $(ps | grep “$$” | awk ‘{print $2}’)<\/p>\n

20.case\u8bed\u53e5\u7ec3\u4e60<\/p>\n

#!\/bin\/bash
\nclear
\necho “enter a number from 1 to 5:”
\nread num
\ncase $num in
\n1) echo “you enter 1”
\n;;
\n2) echo “you enter 2”
\n;;
\n3) echo “you enter 3”
\n;;
\n4) echo “you enter 4”
\n;;
\n5) echo “you enter 5”
\n;;
\n*) echo “error”
\n;;
\nesac<\/p>\n

21.yes\/no\u8fd4\u56de\u4e0d\u540c\u7684\u7ed3\u6784<\/p>\n

#!\/bin\/bash
\nclear
\necho “enter [y\/n]:”
\nread a
\ncase $a in
\ny|Y|Yes|YES) echo “you enter $a”
\n;;
\nn|N|NO|no) echo “you enter $a”
\n;;
\n*) echo “error”
\n;;
\nesac<\/p>\n

22.<\/p>\n

 <\/p>\n

 <\/p>\n

23.\u5185\u7f6e\u547d\u4ee4\u7684\u4f7f\u7528<\/p>\n

#\/bin\/bash<\/p>\n

clear
\necho “Hello, $USER”
\necho<\/p>\n

echo “Today ‘s date id `date`”<\/p>\n

echo<\/p>\n

echo “the user is :”
\nwho
\necho<\/p>\n

echo “this is `uname -s`”
\necho<\/p>\n

echo “that’s all folks! ”<\/p>\n

24.<\/p>\n

 <\/p>\n

 <\/p>\n

25.<\/p>\n

#\/bin\/bash<\/p>\n

26.\u6253\u5370\u65e0\u5bc6\u7801\u7528\u6237<\/p>\n

#\/bin\/bash
\necho “No Password User are :”
\necho $(cat \/etc\/shadow | grep “!!” | awk ‘BEGIN { FS=”:” }{print $1}’)<\/p>\n

27.<\/p>\n

#\/bin\/bash<\/p>\n

clear
\necho “Hello, $USER”
\necho<\/p>\n

echo “Today ‘s date id `date`”<\/p>\n

echo<\/p>\n

echo “the user is :”
\nwho
\necho<\/p>\n

echo “this is `uname -s`”
\necho<\/p>\n

echo “that’s all folks! ”<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

\u81ea\u5df1\u5199\u4e86\u4e00\u4e0b\u5c0f\u7684shell\u5b9e\u4f8b\uff0c\u867d\u7136\u5f88\u5c0f\uff0c\u4f46\u6240\u6709\u7684\u5927\u7684\u7a0b\u5e8f\u90fd\u662f\u7531\u5c0f\u7684\u6a21\u5757\u5806\u79ef\u8d77\u6765\u7684\uff0c\u7a0b\u5e8f\u5458\u4e00\u5b9a\u8981\u61c2\u5f97\u4e00\u79cd\u811a\u672c\u7684 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-178","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=178"}],"version-history":[{"count":1,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/178\/revisions"}],"predecessor-version":[{"id":479,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/178\/revisions\/479"}],"wp:attachment":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=178"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}