替换命令的一般形式如下： :[range]s/{pattern}/{string}/[flags] [count] 该命令在[range]中的...
# 5. command-line that reverses each paragraph in the file but prints # them in order perl -00 -e 'print reverse <>' file1 file2 file3 ... 8、用随机数重写 # replace string XYZ with a random number less than 611 in these files perl -i.bak -pe "s/XYZ/int rand(611)/e" f1 ...
.token.builtin { color: #a71d5d; } .token.string, .token.url, .token.regex, .token.attr-value { color: #183691; } .token.property, .token.number, .token.boolean, .token.entity, .token.atrule, .token.constant, .token.symbol, .token.command, .token.code { color: #0086b3; } ...
you need to make it executable. You can use the `chmod` command to change the permissions of the script file. For example, if your Perl script is named `script.pl`, you can make it executable by running the following command:
您可以创建另一个按钮来运行它(或者直接运行window.destroy) window = tk.Tk()b1 = tk.Button(window, text="Open File", command=get_file_path).pack()b2 = tk.Button(window, text="Close", comman=window.destroy).pack()window.mainloop() 或者直接在get_file_path()中运行 def get_file_path()...
# 3. find palindromes in the /usr/dict/words dictionary file perl -lne '$_ = lc $_; print if $_ eq reverse' /usr/dict/words # 4. command-line that reverses all the bytes in a file perl -0777e 'print scalar reverse <>' f1 f2 f3 ... ...
# replace the string in each file foreach my $file ($0, qw[/etc/hosts /etc/defaultrouter /etc/ethers], @ARGV) { # note that we know $replacement is a valid IP address, so this is # not a dangerous invocation my $command = "perl -p -i.bak -e 's/111.111.111.111/$replacement...
command(1) comp_err(1) compare(1) composite(1) compress(1) config.guess(1) config.sub(1) config_data(1) conflict(1) conjure(1) constype(1) continue(1) convert(1) convmv(1) corelist(1) cp(1) cp(1g) cpack(1) cpan(1) cpan2dist(1) cpanp(1) cpio(1) cpp(1) cpp(1) cpu...
print$qq_string;# prints This is a "double-quoted" string with variable Alice# qx operator executes the content as a command and returns the output as a double-quoted string with any delimiter$qx_string=qx(ls -l);print$qx_string;# prints the output of ls -l command# qw operator ...
本節包含適用於 Linux/Mac 平台的 Perl 指令碼,可用來建立私有內容的簽章。若要建立簽章,請使用命令列參數指定 CloudFront URL、簽署者的私有金鑰路徑、金鑰 ID 和 URL 的過期日期,來執行指令碼。此工具也可以解碼簽章的 URL。 注意 建立URL 簽章只是私有內容提供服務的程序的一部分,以使用簽章 URL。如需端對端...