{"id":1832,"date":"2015-01-24T00:30:45","date_gmt":"2015-01-23T16:30:45","guid":{"rendered":"http:\/\/ixyzero.com\/blog\/?p=1832"},"modified":"2015-01-24T00:30:45","modified_gmt":"2015-01-23T16:30:45","slug":"%e8%af%91%e5%8f%a6%e7%b1%bb%e7%9a%84%e5%af%86%e7%a0%81%e7%a0%b4%e8%a7%a3%e9%80%9f%e6%9f%a5%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/1832.html","title":{"rendered":"[\u8bd1]\u53e6\u7c7b\u7684\u5bc6\u7801\u7834\u89e3\u901f\u67e5\u8868"},"content":{"rendered":"

\u539f\u6587\u94fe\u63a5<\/strong>\uff1aunix-ninja :: A cheat-sheet for password crackers<\/a><\/p>\n

\u5728\u6587\u7ae0\u6b63\u6587\u5f00\u59cb\u4e4b\u524d\u5148\u8bf4\u51e0\u53e5\uff1a\u5176\u5b9e\u633a\u6fc0\u52a8\u7684\uff0c\u8fd9\u4e48\u597d\u7684\u6587\u7ae0\uff0c\u73b0\u5728\u624d\u770b\u5230\uff1b\u8001\u5916\u7684\u5206\u4eab\u610f\u8bc6\u592a\u7ed9\u529b\u4e86\uff0c\u6211\u89c9\u5f97\u5982\u679c\u662f\u56fd\u5185\u7684\u8bdd\uff0c\u8fd9\u4e48\u597d\u7684\u5185\u5bb9\u5728\u516c\u5f00\u7684\u573a\u5408\u53ef\u80fd\u5c31\u770b\u4e0d\u5230\u4e86\uff08\u81ea\u5df1\u5077\u5077\u6478\u6478\u7684\u7528\u5c31\u884c\u4e86\uff0c\u80af\u5b9a\u4e0d\u4f1a\u653e\u51fa\u6765\u7684\uff0c\u6216\u8005\u53ea\u662f\u5728\u5c0f\u8303\u56f4\u5185\u6d41\u4f20\uff09\uff0c\u50cf\u6211\u80af\u5b9a\u662f\u770b\u4e0d\u5230\u7684::>_<:: \u6700\u521d\u662f\u5728360\u5b89\u5168\u64ad\u62a5<\/a>\u91cc\u9762\u770b\u5230\u7684\u6587\u7ae0<\/a>\uff0c\u4f46\u662f\u91cc\u9762\u7684\u7ffb\u8bd1\u5176\u5b9e\u633a\u4e0d\u7528\u5fc3\u7684\uff08\u4f46\u4e5f\u5f97\u611f\u8c22360\u5b89\u5168\u64ad\u62a5\uff0c\u8981\u4e0d\u7136\u73b0\u5728\/\u4e00\u6bb5\u65f6\u95f4\u5185\u6211\u8fd8\u771f\u770b\u4e0d\u5230\u8fd9\u7bc7\u6587\u7ae0\uff0c\u5728\u6b64\u611f\u8c22\u4ed6\u4eec\u7684\u8f9b\u52e4\u6536\u96c6\uff09\uff0c\u800c\u4e14\u5bf9\u4e8e\u8fd9\u7c7b\u6587\u7ae0\u4e2d\u6700\u91cd\u8981\u7684\u793a\u4f8b\u4ee3\u7801\u7adf\u7136\u4e5f\u6ca1\u6709\u6ce8\u610f\u53ef\u80fd\u5b58\u5728\u7684\u8f6c\u4e49\u95ee\u9898\uff0c\u4ece\u800c\u5bfc\u81f4\u4e86\u4e0d\u5c11\u9519\u8bef\uff0c\u6211\u53ea\u6709\u4ece\u82f1\u6587\u539f\u6587\u4e2d\u53bb\u6bd4\u5bf9\u3001\u91cd\u65b0\u7ffb\u8bd1\uff08\u771f\u7684\u662f\u7b2c\u4e00\u6b21\u8fdb\u884c\u8fd9\u6837\u7684\u7ffb\u8bd1\uff0c\u82f1\u8bed\u4e22\u4e86\u597d\u4e45\u4e86\uff0c\u867d\u7136\u82b1\u4e86\u4e00\u5b9a\u7684\u65f6\u95f4\u8fdb\u884c\u6821\u5bf9\uff0c\u4f46\u8fd8\u662f\u5e0c\u671b\u51fa\u9519\u7684\u5730\u65b9\u4e0d\u8981\u592a\u591a\u2026\u2026\uff09\uff0c\u7136\u540e\u6839\u636e\u81ea\u5df1\u4ec5\u6709\u7684\u4e00\u4e9b\u7ecf\u9a8c\u8fdb\u884c\u4e86\u6821\u5bf9\uff0c\u80af\u5b9a\u8fd8\u6709\u4e0d\u5bf9\u7684\u5730\u65b9\uff0c\u8fd8\u671b\u591a\u591a\u7406\u89e3~~<\/p>\n

\n

\u672c\u6587\u4e2d\u6211\u5c06\u5206\u4eab\u4e00\u4e9b\u6211\u5728\u5bc6\u7801\u7834\u89e3\u8fc7\u7a0b\u4e2d\u89c9\u5f97\u6709\u7528\u7684Bash\u547d\u4ee4\u548c\u6b63\u5219\u8868\u8fbe\u5f0f\u3002\u5927\u591a\u6570\u65f6\u5019\uff0c\u6211\u4eec\u901a\u8fc7\u7c7b\u4f3c\u4e8ePastebin\u8fd9\u6837\u7684\u7f51\u7ad9\u6765\u7834\u89e3hash\u3002\u8003\u8651\u5230\u624b\u5de5\u5206\u79bbhash\u662f\u4e00\u4e2a\u975e\u5e38\u8017\u65f6\u95f4\u7684\u8fc7\u7a0b\uff0c\u6240\u4ee5\u8fd9\u91cc\u6211\u4eec\u5c06\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u8ba9\u6211\u4eec\u7684\u751f\u6d3b\u751f\u6d3b\u66f4\u8f7b\u677e\uff01<\/p>\n

\u63d0\u53d6 MD5 \u54c8\u5e0c(egrep\u65b9\u5f0f)<\/h6>\n
# egrep -oE '(^|[^a-fA-F0-9])[a-fA-F0-9]{32}([^a-fA-F0-9]|$)' *.txt | egrep -o '[a-fA-F0-9]{32}' > md5-hashes.txt<\/pre>\n
\u53e6\u4e00\u79cdsed\u7684\u65b9\u5f0f<\/h6>\n
# sed -rn 's\/.*[^a-fA-F0-9]([a-fA-F0-9]{32})[^a-fA-F0-9].*\/\\1\/p' *.txt > md5-hashes<\/pre>\n
\u8bf4\u660e\uff1a\u4e0a\u9762\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u53ef\u4ee5\u7528\u4e8e\u63d0\u53d6\u4ee5\u5341\u516d\u8fdb\u5236\u8868\u793a\u7684SHA1\/SHA256\u548c\u5176\u5b83\u672a\u52a0\u76d0\u7684hash\u5bc6\u7801\uff0c\u4f60\u552f\u4e00\u9700\u8981\u505a\u7684\u5c31\u662f\u6839\u636e\u5177\u4f53\u7684hash\u7c7b\u578b\u4fee\u6539\u4e0a\u9762\u768432\u4e3a\u76f8\u5e94\u7684hash\u5b57\u7b26\u4e32\u957f\u5ea6\u3002<\/p>\n
\u63d0\u53d6\u6709\u6548MySQL-Old\u54c8\u5e0c<\/h6>\n
# grep -e \"[0-7][0-9a-f]\\{7\\}[0-7][0-9a-f]\\{7\\}\" *.txt > mysql-old-hashes.txt<\/pre>\n
\u63d0\u53d6 blowfish \u54c8\u5e0c<\/h6>\n
# grep -e \"\\$2a\\\\$\\08\\\\$\\(.\\)\\{75\\}\" *.txt > blowfish-hashes.txt<\/pre>\n
\u63d0\u53d6 Joomla \u54c8\u5e0c<\/h6>\n
# egrep -o \"([0-9a-zA-Z]{32}):(\\w{16,32})\" *.txt > joomla.txt<\/pre>\n
\u63d0\u53d6 VBulletin \u54c8\u5e0c<\/h6>\n
# egrep -o \"([0-9a-zA-Z]{32}):(\\S{3,32})\" *.txt > vbulletin.txt<\/pre>\n
\u63d0\u53d6 phpBB3-MD5<\/h6>\n
# egrep -o '\\$H\\$\\S{31}' *.txt > phpBB3-md5.txt<\/pre>\n
\u63d0\u53d6 WordPress-MD5<\/h6>\n
# egrep -o '\\$P\\$\\S{31}' *.txt > wordpress-md5.txt<\/pre>\n
\u63d0\u53d6 Drupal 7<\/h6>\n
# egrep -o '\\$S\\$\\S{52}' *.txt > drupal-7.txt<\/pre>\n
\u63d0\u53d6 old Unix-md5<\/h6>\n
# egrep -o '\\$1\\$\\w{8}\\S{22}' *.txt > md5-unix-old.txt<\/pre>\n
\u63d0\u53d6 md5-apr1<\/h6>\n
# egrep -o '\\$apr1\\$\\w{8}\\S{22}' *.txt > md5-apr1.txt<\/pre>\n
\u63d0\u53d6 sha512crypt, SHA512(Unix)<\/h6>\n
# egrep -o '\\$6\\$\\w{8}\\S{86}' *.txt > sha512crypt.txt<\/pre>\n
\u4ece\u6587\u672c\u6587\u4ef6\u4e2d\u63d0\u53d6 Email\u5730\u5740<\/h6>\n
# grep -E -o \"\\b[a-zA-Z0-9.#?$*_-]+@[a-zA-Z0-9.#?$*_-]+\\.[a-zA-Z0-9.-]+\\b\" *.txt > e-mails.txt<\/pre>\n
\u4ece\u6587\u672c\u6587\u4ef6\u4e2d\u63d0\u53d6 URL<\/h6>\n
# grep http | grep -shoP 'http.*?[\" >]' *.txt > http-urls.txt<\/pre>\n
\u63d0\u53d6HTTPS\u3001FTP\u548c\u5176\u4ed6\u7684URL\u683c\u5f0f<\/h6>\n
# grep -E '(((https|ftp|gopher)|mailto)[.:][^ >\"\\t]*|www\\.[-a-z0-9.]+)[^ .,;\\t>\">\\):]' *.txt > urls.txt<\/pre>\n
\u6ce8\u610f:\u5982\u679cgrep\u8fd4\u56de “Binary file (standard input) matches” \u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5<\/p>\n
# tr '[\\000-\\011\\013-\\037\\177-\\377]' '.' < *.log | grep -E \"Your_Regex\"\nor\n# cat -v *.log | egrep -o \"Your_Regex\"<\/pre>\n
\u63d0\u53d6\u6d6e\u70b9\u6570<\/h6>\n
# grep -E -o \"^[-+]?[0-9]*\\.?[0-9]+([eE][-+]?[0-9]+)?$\" *.txt > floats.txt<\/pre>\n
\u63d0\u53d6 Visa \u4fe1\u7528\u5361\u6570\u636e<\/h6>\n
# grep -E -o \"4[0-9]{3}[ -]?[0-9]{4}[ -]?[0-9]{4}[ -]?[0-9]{4}\" *.txt > visa.txt<\/pre>\n
\u63d0\u53d6 MasterCard \u7684\u6570\u636e<\/h6>\n
# grep -E -o \"5[0-9]{3}[ -]?[0-9]{4}[ -]?[0-9]{4}[ -]?[0-9]{4}\" *.txt > mastercard.txt<\/pre>\n
\u63d0\u53d6 American Express \u7684\u6570\u636e<\/h6>\n
# grep -E -o \"\\b3[47][0-9]{13}\\b\" *.txt > american-express.txt<\/pre>\n
\u63d0\u53d6 Diners Club \u7684\u6570\u636e<\/h6>\n
# grep -E -o \"\\b3(?:0[0-5]|[68][0-9])[0-9]{11}\\b\" *.txt > diners.txt<\/pre>\n
\u63d0\u53d6 Discover \u7684\u6570\u636e<\/h6>\n
# grep -E -o \"6011[ -]?[0-9]{4}[ -]?[0-9]{4}[ -]?[0-9]{4}\" *.txt > discover.txt<\/pre>\n
\u63d0\u53d6 JCB \u7684\u6570\u636e<\/h6>\n
# grep -E -o \"\\b(?:2131|1800|35\\d{3})\\d{11}\\b\" *.txt > jcb.txt<\/pre>\n
\u63d0\u53d6 AMEX \u7684\u6570\u636e<\/h6>\n
# grep -E -o \"3[47][0-9]{2}[ -]?[0-9]{6}[ -]?[0-9]{5}\" *.txt > amex.txt<\/pre>\n
\u63d0\u53d6 \u793e\u4f1a\u5b89\u5168\u53f7\u7801 (Social Security Number – SSN)<\/h6>\n
# grep -E -o \"[0-9]{3}[ -]?[0-9]{2}[ -]?[0-9]{4}\" *.txt > ssn.txt<\/pre>\n
\u63d0\u53d6 Indiana\u9a7e\u7167\u53f7\u7801 (Indiana Driver License Number)<\/h6>\n
# grep -E -o \"[0-9]{4}[ -]?[0-9]{2}[ -]?[0-9]{4}\" *.txt > indiana-dln.txt<\/pre>\n
\u63d0\u53d6\u7f8e\u56fd\u62a4\u7167\u5361\u53f7 (US Passport Cards)<\/h6>\n
# grep -E -o \"C0[0-9]{7}\" *.txt > us-pass-card.txt<\/pre>\n
\u63d0\u53d6\u7f8e\u56fd\u62a4\u7167\u53f7\u7801 (US Passport Number)<\/h6>\n
# grep -E -o \"[23][0-9]{8}\" *.txt > us-pass-num.txt<\/pre>\n
\u63d0\u53d6\u7f8e\u56fd\u7684\u624b\u673a\u53f7\u7801<\/h6>\n
# grep -Po '\\d{3}[\\s\\-_]?\\d{3}[\\s\\-_]?\\d{4}' *.txt > us-phones.txt<\/pre>\n
\u63d0\u53d6 ISBN \u53f7\u7801<\/h6>\n
# egrep -a -o \"\\bISBN(?:-1[03])?:? (?=[0-9X]{10}$|(?=(?:[0-9]+[- ]){3})[- 0-9X]{13}$|97[89][0-9]{10}$|(?=(?:[0-9]+[- ]){4})[- 0-9]{17}$)(?:97[89][- ]?)?[0-9]{1,5}[- ]?[0-9]+[- ]?[0-9]+[- ]?[0-9X]\\b\" *.txt > isbn.txt<\/pre>\n
========<\/p>\n
\u7528 sed\/awk\/grep \u5904\u7406\u7684\u4e00\u4e9b\u5c0f\u6280\u5de7<\/h5>\n
\u7528sed\u79fb\u9664\u7a7a\u5b57\u7b26(Remove the space character with sed)<\/p>\n
# sed -i 's\/ \/\/g' file.txt\nOR\n# egrep -v \"^[[:space:]]*$\" file.txt<\/pre>\n
\u7528sed\u79fb\u9664\u6700\u540e\u7684\u7a7a\u767d\u5b57\u7b26(Remove the last space character with sed)<\/h6>\n
# sed -i s\/.$\/\/ file.txt<\/pre>\n
\u6309\u5355\u8bcd\u7684\u957f\u5ea6\u6392\u5e8f<\/h6>\n
# awk '{print length, $0}' rockyou.txt | sort -n | cut -d \" \" -f2- > rockyou_length-list.txt<\/pre>\n
\u5c06\u5927\u5c0f\u5199\u4e92\u76f8\u8f6c\u6362(Convert uppercase to lowercase and the opposite)<\/p>\n
# tr [A-Z] [a-z] < file.txt > lower-case.txt\n# tr [a-z] [A-Z] < file.txt > upper-case.txt<\/pre>\n
\u7528sed\u5220\u9664\u7a7a\u884c<\/p>\n
# sed -i '\/^$\/d' List.txt<\/pre>\n
\u7528sed\u5220\u9664\u81ea\u5b9a\u4e49\u5b57\u7b26<\/p>\n
# sed -i \"s\/'\/\/\" file.txt<\/pre>\n
\u7528sed\u5220\u9664\u4e00\u4e2a\u5b57\u7b26\u4e32<\/p>\n
# echo 'This is a foo test' | sed -e 's\/<foo>\/\/g'<\/pre>\n
\u7528tr\u66ff\u6362\u5b57\u7b26<\/p>\n
# tr '@' '#' < emails.txt\nOR\n# sed 's\/@\/#' file.txt<\/pre>\n
\u7528awk\/cut\u547d\u4ee4\u6253\u5370\u6307\u5b9a\u5217(Print specific columns with awk)<\/p>\n
# awk -F \",\" '{print $3}' infile.csv > outfile.csv\nor\n# cut -d \",\" -f 3 infile.csv > outfile.csv<\/pre>\n
Note: if you want to isolate all columns after column 3 use (\u5982\u679c\u4f60\u60f3\u6392\u9664\u7b2c3\u5217\u4e4b\u540e\u7684\u5185\u5bb9\u8bf7\u4f7f\u7528\u4e0b\u9762\u7684\u547d\u4ee4)<\/p>\n
# cut -d \",\" -f 3- infile.csv > outfile.csv<\/pre>\n
\u4f7f\u7528urandom\u751f\u6210\u968f\u673a\u5bc6\u7801(Generate Random Passwords with urandom)<\/h6>\n
# tr -dc 'a-zA-Z0-9._!@#$%^&*()' < \/dev\/urandom | fold -w 8 | head -n 500000 > wordlist.txt\n# tr -dc 'a-zA-Z0-9-_!@#$%^&*()_+{}|:<>?=' < \/dev\/urandom | fold -w 12 | head -n 4\n# base64 \/dev\/urandom | tr -d '[^:alnum:]' | cut -c1-10 | head -2\n# tr -dc 'a-zA-Z0-9' < \/dev\/urandom | fold -w 10 | head -n 4\n# tr -dc 'a-zA-Z0-9-_!@#$%^&*()_+{}|:<>?=' < \/dev\/urandom | fold -w 12 | head -n 4 | grep -i '[!@#$%^&*()_+{}|:<>?=]'\n# tr -dc '[:print:]' < \/dev\/urandom | fold -w 10| head -n 10\n# tr -cd '[:alnum:]' < \/dev\/urandom | fold -w30 | head -n2<\/pre>\n
\u5220\u9664\u62ec\u53f7(Remove Parenthesis with tr)<\/p>\n
# tr -d '()' < in_file > out_file<\/pre>\n
\u7528\u4f60\u7684\u6587\u4ef6\u540d\u751f\u6210\u5355\u8bcd\u5217\u8868(Generate wordlists from your file-names)<\/h6>\n
# ls -A | sed 's\/regexp\/&\\n\/g'<\/pre>\n
\u5f53\u9047\u5230cat\u547d\u4ee4\u65e0\u6cd5\u5904\u7406\u7684\u5947\u7279\u5b57\u7b26\u65f6(Process text files when cat is unable to handle strange characters)<\/p>\n
# sed 's\/\\([[:alnum:]]*\\)[[:space:]]*(.)\\(\\..*\\)\/\\1\\2\/' *.txt<\/pre>\n
\u4f7f\u7528awk\u8fc7\u6ee4\u51fa\u6307\u5b9a\u957f\u5ea6\u7684\u5185\u5bb9(Generate length based wordlists with awk)<\/p>\n
# awk 'length == 10' file.txt > 10-length.txt<\/pre>\n
\u5408\u5e76\u4e24\u4e2a\u4e0d\u540c\u7684txt\u6587\u4ef6<\/p>\n
# paste -d' ' file1.txt file2.txt > new-file.txt<\/pre>\n
\u5229\u7528parallel\u547d\u4ee4\u8fdb\u884c\u5feb\u901f\u6392\u5e8f(Faster sorting)<\/h6>\n
# export alias sort='sort --parallel=<number_of_cpu_cores> -S <amount_of_memory>G ' && export LC_ALL='C' && cat file.txt | sort -u > new-file.txt<\/pre>\n
Mac\u5230UNIX\u683c\u5f0f\u7684\u8f6c\u6362(Mac to unix)<\/h6>\n
# tr '\\015' '\\012' < in_file > out_file<\/pre>\n
Dos\u5230UNIX\u683c\u5f0f\u7684\u8f6c\u6362(Dos to Unix)<\/p>\n
# dos2unix file.txt<\/pre>\n
Unix\u5230Dos\u683c\u5f0f\u7684\u8f6c\u6362(Unix to Dos)<\/p>\n
# unix2dos file.txt<\/pre>\n
\u5229\u7528grep\u79fb\u9664\u672c\u6587\u4ef6\u4e2d\u5df2\u5728\u5176\u4ed6\u6587\u4ef6\u4e2d\u51fa\u73b0\u7684\u5185\u5bb9(Remove from one file what is in another file)<\/h6>\n
# grep -F -v -f file1.txt -w file2.txt > file3.txt<\/pre>\n
\u7528sed\u547d\u4ee4\u63d0\u53d6\u6307\u5b9a\u884c\u7684\u5185\u5bb9(Isolate specific line numbers with sed)<\/p>\n
# sed -n '1,100p' test.file > file.out<\/pre>\n
\u63d0\u53d6pdf\u6587\u4ef6\u4e2d\u7684\u6587\u672c\u5185\u5bb9(Create Wordlists from PDF files)<\/p>\n
# pdftotext file.pdf file.txt<\/pre>\n
\u67e5\u627e\u4e00\u4e2a\u6587\u4ef6\u4e2d\u7684\u6307\u5b9a\u884c\/\u5185\u5bb9(Find the line number of a string inside a file)<\/p>\n
# awk '{ print NR, $0 }' file.txt | grep \"string-to-grep\"\nor\n# grep -n \"string-to-grep\"<\/pre>\n
====
\n\u66f4\u5feb\u7684\u8fc7\u6ee4\u8bf7\u53c2\u8003(Faster filtering with the silver searcher)
\nhttps:\/\/github.com\/ggreer\/the_silver_searcher<\/a><\/p>\n
(\u5982\u679c\u60f3\u8fdb\u884c\u66f4\u5feb\u7684\u5339\u914d\uff0c\u8bf7\u5c06\u4e0a\u9762\u547d\u4ee4\u4e2d\u7684grep\u66ff\u6362\u4e3aag\uff0c\u800c\u4fdd\u6301\u6b63\u5219\u8868\u8fbe\u5f0f\u4e0d\u53d8)For faster grepping use all the above grep regular expressions with the command ag. The following is a proof of concept of its speed:<\/p>\n
# time ack-grep -o \"\\b[a-zA-Z0-9.#?$*_-]+@[a-zA-Z0-9.#?$*_-]+\\.[a-zA-Z0-9.-]+\\b\" *.txt > \/dev\/null\nreal 1m2.447s\nuser 1m2.297s\nsys 0m0.645s\n\n# time egrep -o \"\\b[a-zA-Z0-9.#?$*_-]+@[a-zA-Z0-9.#?$*_-]+\\.[a-zA-Z0-9.-]+\\b\" *.txt > \/dev\/null\nreal 0m30.484s\nuser 0m30.292s\nsys 0m0.310s\n\n# time ag -o \"\\b[a-zA-Z0-9.#?$*_-]+@[a-zA-Z0-9.#?$*_-]+\\.[a-zA-Z0-9.-]+\\b\" *.txt > \/dev\/null\nreal 0m4.908s\nuser 0m4.820s\nsys 0m0.277s<\/pre>\n
====<\/p>\n
cat\u547d\u4ee4\u7684\u6709\u6548\u4f7f\u7528(Useful Use of Cat)<\/h6>\n
Contrary to what many veteran unix users may believe, this happens to be one of the rare opportunities where using cat can actually make your searches faster. The SilverSearcher utility is (at the time of this writing) not quite as efficient as cat when it comes to reading from file handles. Therefore, you can pipe output from cat into ag to see nearly a 2x real time performance gain{\u8fd9\u79cd\u60c5\u51b5\u51fa\u73b0\u5728\uff1a\u4f7f\u7528cat\u547d\u4ee4\u6253\u5f00\u5927\u91cf\u6587\u4ef6\u800c\u4e0d\u662f\u81ea\u5df1\u4f7f\u7528\u6587\u4ef6\u53e5\u67c4\u4e00\u4e2a\u4e00\u4e2a\u7684\u8fdb\u884c\u8bfb\u53d6\uff0c\u4ece\u800c\u5f97\u5230\u4e86\u5f88\u5927\u7684\u6027\u80fd\u63d0\u5347}:<\/p>\n
$ time ag -o '(^|[^a-fA-F0-9])[a-fA-F0-9]{32}([^a-fA-F0-9]|\\$)' *.txt | ag -o '[a-fA-F0-9]{32}' > \/dev\/null\nreal 0m10.851s\nuser 0m13.069s\nsys 0m0.092s\n\n$ time cat *.txt | ag -o '(^|[^a-fA-F0-9])[a-fA-F0-9]{32}([^a-fA-F0-9]|\\$)' | ag -o '[a-fA-F0-9]{32}' > \/dev\/null\nreal 0m6.689s\nuser 0m7.881s\nsys 0m0.424s<\/pre>\n
 <\/p>\n
\u53c2\u8003\u94fe\u63a5\uff1a<\/h6>\n