awk: ^ backslash not last character on line (转载) 该指令是从服务端检测进程重复代码中截取的,在终端直接运行时不需要转义符。 链接: https://blog.csdn.net/weixin_43948991/article/details/115478700
当文件的分隔符是空格，我们就无法利用cut进行提取了，此时我们需要用到后面将要讲到的awk命令来进行提取。
Name AverageLiming87.66Sc85.66Gao91.66[root@zabbix lianxi]#awk'{printf $2 "\t" $6\n}'student.txtawk: cmd. line:1: {printf $2"\t"$6\n}awk: cmd. line:1: ^ backslash notlastcharacter on lineawk: cmd. line:1: {printf $2"\t"$6\n}awk: cmd. line:1: ^syntax error [root@za...
awk: ^ backslash not last character on line $ sed '1d' test.txt|awk 'BEGIN {print "###" FILENAME "###"} $2<=1.3 /1\.[0-9][0-9]/{print $2" ""*"}' awk: BEGIN {print "###" FILENAME "###"} $2<=1.3 /1\.[0-9][0-9]/{print $2" ""*"} awk: ^ backslash ...
02.01-x86_64.iso on /mnt/pxe type iso9660 (ro,relatime,nojoliet,check=s,map=n,blocksize=...
A literal backslash. \a The ``alert'' character; usually the ASCII BEL character. \b backspace. \f form-feed. \n newline. \r carriage return. \t horizontal tab. \v vertical tab. \xhex digits The character represented by the string of hexadecimal digits following the \x. As in ANSI...
} else { yyerror(_("backslash not last character on line")); return lasttok = LEX_EOF; } break; case ':': case '?': yylval = GET_INSTRUCTION(Op_cond_exp); if (! do_posix) allow_newline(); return lasttok = c; /* ...
If you would like to split a single statement into two lines at a point where a newline would terminate it, you cancontinueit by ending the first line with a backslash character (\). The backslash must be the final character on the line in order to be recognized as a continuation chara...
The reason why string isn't always used as the first argument is that the special meaning for \ character will clash. For example: $ awk 'gsub("\<par\>", "X")' word_anchors.txt awk: cmd. line:1: warning: escape sequence `\<' treated as plain `<' awk: cmd. line:1: warning...
$: match the end of a line Now, let’s find all the lines that start withaor end withe: $ grep'^a\|e$'fruits.txt apple orange grape Thebackslash\is used toescapethe special meaning of the|character, which is used forlogicalORin regular expressions. So, the pattern matches eitheraat ...