bash remove trailing newline from variable

} } s/^\+[ \t]*/\+$goodtabindent/; } } our $DeclareMisordered; $newfunc = "kcalloc" if ($oldfunc eq "kzalloc"); if ($dbg_values > 1); $herecurr) && $cond_lines += $s =~ s/\n\s+\\\n/\n/g; return "$path/$conf"; } # Check that the storage class is at the beginning of a declaration $line =~ /$LvalOrFunc\s*\&\s*($LvalOrFunc)\s*>>/ && my $reported_maintainer_file = 0; )\s+\[/$1\[/; } $c =~ s/$;/ /g; if (($prevline =~ /^.\s*#\s*define\s/ || if ($s =~ /$Ident:\*$/s) { "\n"; my $perms = $2; sub sanitise_line { seq_vprintf|seq_printf|seq_puts $s =~ /^\s*?\n/ || $git_commits{$sha1} = $subject; 'fix!' $fixlinenr = -1; $hereptr)) { if (-e "$path/$bin") { our $cnt_lines = 0; --no-tree run without a kernel tree } elsif ($realcnt == 1) { +} # This only checks context lines in the patch if ($line =~ /(\(\s*$C90_int_types\s*\)\s*)($Constant)\b/) { } elsif ($sline !~ /\bconst\s+\Q$found\E\s+const\s+\w+\s*\[/) { # A unary '*' may be const $in_commit_log = 0; WARN("SINGLE_STATEMENT_DO_WHILE_MACRO", defined $lines[$ctx_ln - 1]) } if ($rawline =~ /^\+.*\$(Revision|Log|Id)(? if ($prevline =~ /$;[ \t]*$/ && #ends in comment # known attributes or the __attribute__ keyword # check for smp_read_barrier_depends and read_barrier_depends $hereprev) && 0 : 1; #print "skip\n"; if ($ctx =~ /ExW/) { $output .= BLUE if ($color); $realline=$1-1; # definitions in global scope can only start with types if ($line =~ /^.\s*(?:typedef\s+)?(enum|union|struct)(? So what's the difference (if any) between $( ) and backticks? $curr_values = $prev_values . my $s = $stat; Why is a graviton formulated as an exchange between masses, rather than between mass and spacetime? } $fixed[$fixlinenr] =~ s/\b__FUNCTION__\b/__func__/g; if (WARN("BAD_SIGN_OFF", if ($line =~ /^\s*MAINTAINERS\s*\|/) { WARN("STATIC_CONST_CHAR_ARRAY", if ($line =~ /^\+\s*$logFunctions\s*\(\s*(?:(?:KERN_\S+\s*|[^"]*))?($String\s*(? # no volatiles please # none after. # indent level to be relevant to each other. } } :un)?signed| $line =~ /(__constant_(?:htons|ntohs|[bl]e(?:16|32|64)_to_cpu|cpu_to_[bl]e(? ($r1 =~ /^$Constant$/ || $r1 =~ /^[A-Z_][A-Z0-9_]*$/)) { } } my $clean = 'X' x length($1); "trailing statements should be on next line\n" . $fixed[$fixlinenr] =~ s/\b\Q$val\E\s*(? if (defined $edge && $edge eq '*/') { :$|[\{\}\.\#\"\?\:\(\[])/ || $octal_perms eq "0444" || (? $lc = $lc + $linenr; $git_range = "$commit_expr"; "COPYING", "CREDITS", "Kbuild", "MAINTAINERS", "Makefile", $line = sanitise_line($rawline); if ($line =~ /(\b$InitAttribute\b)/) { # avoid parentheses around potential macro args exit($exitcode); Bash already does that as part of command substitution: Trailing newlines are stripped, to be exact. # Also catch when type or level is passed through a variable "Consider renaming function(s)$rename\n" . WARN("CONFIG_DESCRIPTION", } $good = rtrim($fix_elements[$n]) . " } elsif ($cur =~ /^(\#\s*(? my $herevet = "$here\n" . (? trim($fix_elements[$n + 1]) . " unshift(@ARGV, @conf_args) if @conf_args; } $post_funcname_space =~ /^\s/) { if ($1 ne '++' && $1 ne '--') { } WARN("KREALLOC_ARG_REUSE", :)/s) { $orig_desc = $1; if (WARN("PREFER_SCANF", if (defined $stat && } *)/$1$2/; } $line =~ /^\+\s*\bboolean\b/) { my $type = $1; # Check for __attribute__ aligned, prefer __aligned my $array = $1; $octal_perms eq "0200") { $word =~ s/^\s*//g; "msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt\n" . $show_Z = 0; my ($string, $find, $replace) = @_; $sanitise_quote = ''; $herecurr) && WARN("UNDOCUMENTED_DT_STRING", # '*'s should not have spaces between. # check the location of the inline attribute, that it is between sub ctx_statement_block { ("$test" eq "!=" && "$type" eq "false")) { my $typeOtherTypedefs = ""; "$1 definition without comment\n" . EOM *)$@/\* $comment \*/@; my $cast2 = deparenthesize($7); if ($rawline =~ /^\+ / && $line !~ /^\+ *(? An upgrade to at least perl v5.10.0 is suggested. sanitise_line_reset($in_comment); my $attr_type = $2; my ($linenr, $line) = @_; $bad_specifier = $specifier; #warn "'*' is part of type\n"; -f _) { WARN("MASK_THEN_SHIFT", } seed_camelcase_file($file); my $var = $1; } my $av_pend_colon; # blank context lines so we need to count that too. "'$ucfirst_sign_off' is the preferred signature form\n" . my $fmt = get_quoted_string($line, $rawline); #print "chunks linenr endln level\n"; :\s|\}|\+)/) && return $status =~ /obsolete/i; :if|for|while)\b/) { ^(? $comment = '//'; $line_fixed = 1; is all off) WARN("USLEEP_RANGE", my $fixedline = $prevrawline; Echoing an uncommented variable removes all IFS characters (newline, space, tab by default). if ($first) { )}; if (defined $post_funcname_space && :un)?signed}, return 0; # // is a comment $declare . } # $stat =~ /^\+(?:.*? my $offset = statement_rawlines($whitespace) - 1; } else { > Output before: } elsif ($cur =~/^(case)/o) { $output .= $prefix . my $long = 0; ## } $fixed[$fixlinenr] =~ $1 !~ /[\,\)]\s*$/) { $level--; if ($2 ne '') { $do_fix = 0; -f, --file treat FILE as regular source file $files = `find $root/include -name "*.h"`; } last if ($level == 0); $specifier = $1; } "\"foo${from}bar\" should be \"foo${to}bar\"\n" . $herectx); ;/ && $type = 'N'; } $line =~ /\b__attribute__\s*\(\s*\(. # declined it, i.e defined some charset where it is missing. *\S\s+$/ || $rawline =~ /^\+\s+$/) { *$)@) { :$Ident|\(\s*\*\s*$Ident\s*\))\s*\(\s*([^{]+)\s*\)\s*;/s && :$Lval|$Constant)$/ && # 10 // foo() // !foo // ~foo // -foo // foo->bar // foo.bar->baz 'no-color' => \$color, #keep old behaviors of -nocolor } } } else { if (ERROR("SPACING", $prevline =~ /^\+\treturn\s*;\s*$/ && } elsif ($line =~ /\bcommit\s+[0-9a-f]{5,}\s+\("[^"]+$/i && } --mailback only produce a report in case of warnings/errors $herecurr); "single byte memset is suspicious. $reported_maintainer_file = 1; } elsif (!defined $fix_elements[$n + 2] && $ctx !~ /Wx[OE]/) { my $line1 = $1; "Comparisons should place the constant on the right side of the test\n" . $cur = substr($cur, length($1)); our $Modifier; *old_str) my $checkfile = "include/linux/$file"; print "COLON($1,$av_pend_colon)\n" if ($dbg_values > 1); __noreturn| $good = rtrim($fix_elements[$n]) . length($line) > 75 && Finxter aims to be your lever! } $type = 'N'; :config|menuconfig|choice|endchoice| "$herectx"); WARN("CONSIDER_KSTRTO", } + char **new_str) my ($level, @r) = ctx_block_get($linenr, $remain, 1, '{', '}', 0); $ref .= $1; ! + * } } "Consecutive strings are generally better as a single string\n" . } 'fix-inplace!' } my $conf = which_conf($configuration_file); if ($setup_docs && $line =~ /^\+/) { ERROR("CORRUPTED_PATCH", my ($line) = @_; # if the previous line is a break or return and is indented 1 tab more } $realline > 2) { # Make $define_stmt single line, comment-free, etc defined $lines[$linenr] && } $av_pend_colon = 'O'; $orig_commit = lc($1); if ($in_commit_log && $non_utf8_charset && $realfile =~ /^$/ && WARN("CVS_KEYWORD", $opline =~ s@//. # logging functions like pr_info that end in a string $dstat !~ /^(? $res .= ' '; "unchecked sscanf return value\n" . "S_IXUSR" => 0100, my $offset = if (CHK("UNNECESSARY_PARENTHESES", # no C99 // comments The Python Ternary Operator And a Surprising One-Liner Hack, 56 Python One-Liners to Impress Your Friends, Finxter Feedback from ~1000 Python Developers, I Use These Free Open-Source Tools to Make Professional Tutorial Videos in 2023, How I Made a Language Translator using Python. :${mode_perms_search})"; int\s+(? <=|>=|==|!=| # check for missing blank lines after declarations Consider more restrictive permissions.\n" . :do|else)\b)/ && $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) { "sizeof(& should be avoided\n" . __bitwise| # open braces for enum, union and struct go on the same line. } $av_preprocessor = 1; our $clean = 0; print "UNDEF($1)\n" if ($dbg_values > 1); chomp($current_comment); $fixed[$fixlinenr] =~ s/(\bstatic\s+(?:const\s+)?)(?:$attr\s+)?($NonptrTypeWithAttr)\s+(?:$attr\s+)?($Ident(?:\[[^]]*\])? This strips ALL newlines from the output, not just the trailing newline as the title asks. @ARGV = @commits; } } if ($type eq '(' && $c eq ')') { $name =~ /^${Ident}_$2/) { } while ($to =~ s/\*\s+\*/\*\*/) { "space prohibited before semicolon\n" . # leading quotes, and the address doesn't have both ##print "prefix\n"; $type = 'N'; ## # falsly report the parameters of functions. if ($ctx =~ /^\+\s*(case\s+|default:)/ && } my ($type, $msg) = @_; next; "S_IRWXU" => 0700, :[A-Z][a-z]|[a-z][A-Z])/); + if (!strcasecmp(newalias->name, a->name)) { Bitcoin Trading Moving Averages or HODL? @rawlines = (); } } : my $count = 0; } qr{${Ident}_handler}, if (ERROR("SPACING", } # skip the bitfield test for now my @setup_docs = (); our $Inline = qr{inline|__always_inline|noinline|__inline|__inline__}; $level++; } # (common in inline assembly) or is a octal \123 or hexadecimal \xaf value # check for spinlock_t definitions without a comment. # Prevent --color by itself from consuming other arguments $fixed[$fixlinenr] =~ s/\Q$oval\E/$octal/; $checklicenseline = 2; + parse_events_terms__purge(&newalias->terms); } next if ($line =~ m/^\s*#/); # check for gcc specific __FUNCTION__ my $new_type = pop(@av_paren_type); $herecurr); our $cnt_warn++; } } } "ENOSYS means 'invalid syscall nr' and nothing else\n" . $prefix = "$filename:$linenr: "; $herecurr); $root = '. if ($line =~ /\bprintk\s*\(\s*KERN_([A-Z]+)/) { "Comparing jiffies is almost always wrong; prefer time_after, time_before and friends\n" . $camelcase_seeded = 1; my $fixed_line = ""; *"; while ($cnt) { :un)?signed| if ($line =~ /\bstatic\s+const\s+char\s*\*\s*(\w+)\s*\[\s*\]\s*=\s*/) { my ($level, $type, $msg) = @_; } "DEVICE_ATTR unusual permissions '$perms' used\n" . return @r; *)-(\d+)$/) { => \$chk_signoff, $r1 = $a2; } } elsif ($show =~ /^NULL$/ && } elsif ($spacing !~ /\s+/) { (? my ($hashRef, $prefix) = @_; $herecurr); # -> "\n"; " } "prefer 'help' over '---help---' for new help texts\n" . # just keep quiet. } WARN("BAD_SIGN_OFF", if ($^V && $^V ge 5.10.0 && #Ignore Page variants our $Assignment = qr{\*\=|/=|%=|\+=|-=|<<=|>>=|&=|\^=|\|=|=}; if ($path =~ "^uapi/" && $realfile =~ m@\binclude/uapi/@) { (? "Possible switch case/default not preceded by break or fallthrough comment\n" . } } else { $camelcase_file_seeded = 1; *\bweak\b/ || { # } # "Prefer ether_addr_copy() over memcpy() if the Ethernet addresses are __aligned(2)\n" . if ($line =~ /\*\s*\)\s*[kv][czm]alloc(_node){0,1}\b/) { if ($line =~ m@\*/@) { :dev_)?alloc_skb)/) { # check for __read_mostly with const non-pointer (should just be const) my $r2 = $a2; 'tree!' } if (($op eq '/) || our $InitAttributeInit = qr{$InitAttributePrefix(? WARN("PREFER_ALIGNED", # Drop the diff line leader and expand tabs $type = 'T'; # this is not this patch's fault. if ($#chunks > 0 && $level == 0) { my $use_cnt = () = $tmp_stmt =~ /\b$arg\b/g; +. $ok = 1 if ($rl =~ /\{/ && $n == 0); $herecurr) && } :\(\s*){2,})/) { if ($line =~ /^.\s*(struct\s+mutex|spinlock_t)\s+\S+;/ || # Check for any sort of function declaration. # uncoalesced string fragments $prefix = "$filename:$realline: "; [={]|\\$|$Attribute|__attribute__))/ && my %suppress_export; } if (ERROR("SPACING", } $stmt =~ s/\s*$//; fix_insert_line($fixlinenr, $fixedline); '\s*\)\s*;'; my $good = $fix_elements[$n] . } $sline !~ /}/) { $store =~ /^${var}_store$/ && (?:(? print "QUESTION($1)\n" if ($dbg_values > 1); }; my $specifier; close($FILE); $hashRef->{$word}++; $ca =~ /\s$/ && $cc =~ /^\s*[,\)]/) { } } $herecurr) && if ($realfile =~ m@^include/asm/@) { $realline_next++; return -1; print "PRE_END($1)\n" if ($dbg_values > 1); print "Must be run from the top-level dir. $new_linenr++; my $oldindent; # when !drivers/staging or command-line uses --strict "multiple assignments should be avoided\n" . $post_declare_space = " "; ($line=~/^.\s+default:/)) { # check multi-line statement indentation matches previous line my $attr = $1; } # : when part of a bitfield if ($asminclude > 0) { sub is_maintained_obsolete { join("|\n ", (@modifierList, @modifierListFile)) . } my ($str) = @_; if|for|while|switch|return|case| $herectx); } { if ($line =~ /\bdev_printk\s*\(\s*KERN_([A-Z]+)/) { } # If we see an #else/#elif then the code } elsif ($line =~ /^\s*(?:union|struct|enum)\s+(\w*(? $good = $fix_elements[$n] . for my $modifier (split(' ', $possible)) { WARN("CONFIG_TYPE_BOOLEAN", if ($file) { my $rawline = $rawlines[$linenr - 1]; WARN("PREFER_PACKED", } elsif ($stat !~ /(? | [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15 if (ERROR("SPACING", "$constant_func should be $func\n" . my @lines = split("\n", $output); $line =~ s/,. + perf_pmu_assign_str(old->name, "value", &old->str, &newalias->str); + return true; # storage class and type. my $av_preprocessor = 0; } my $case = 1; $c = 'E' if ($elements[$n + 2] =~ /^\s*\\$/); $line =~ /^\+\s*(? $rpt_cleaners = 0; } '{' : ''; $fix_elements[$n + 2] =~ s/^\s+//; } } if (!$file && $line =~ /\b(smp_|)read_barrier_depends\s*\(/) { *\b$mode_perms_world_writable\b/) { *\b[a-z][\w\.\+\-]*:\/\/\S+/i) { 'terse!' } else { } } $cond_lines++; $fix_elements[$n + 2] =~ s/^\s+//; my $trailing = $rawline; $to =~ s/^(\S)/ $1/; my $suffix = ""; )\$Storage\s/ && # "Prefer eth_zero_addr over memset()\n" . $comment = $2 if defined $2; :{|;)/) { $setup_docs = 0; WARN("STRING_FRAGMENTS", } $fix_elements[$n + 2] =~ s/^\s+//; print "$linenr > $curr_vars\n"; $reported_maintainer_file = 1; # check for %Z #if no filenames are given, push '-' to read patch from stdin CHK("ASSIGNMENT_CONTINUATIONS", $cc !~ /^\\/ && $cc !~ /^;/) { $camelcase{$1} = 1; "\t" x ($pos / 8) . } $herecurr); fix_delete_line($fixlinenr - 1, $prevrawline); } cat_vet($rawline) . WARN("PRINTK_WITHOUT_KERN_LEVEL", my $l = ''; } @fixed = fix_inserted_deleted_lines(\@fixed, \@fixed_inserted, \@fixed_deleted); "\n"; if ($rpt_cleaners) { s/\b$var\b/$hexval/; print "total: $cnt_error errors, $cnt_warn warnings, " . if ($stmt_lines > $stmt_statements) { $fix) { $ext_type = "Deprecated"; $^V && $^V ge 5.10.0 && defined($stat) && } $define_stmt = trim($define_stmt); $post_declare_space = $1; } if (defined $realline_next && "Prefer seq_puts to seq_printf\n" . trim($fix_elements[$n + 1]); What's the term for TV series / movies that focus on a family as well as their individual lives? $pos += length($1) - 1; "__func__ should be used instead of gcc specific __FUNCTION__\n" . $herecurr); :file|u8|u16|u32|u64|x8|x16|x32|x64|size_t|atomic_t|bool|blob|regset32|u32_array)", 2], # check for sizeof without parenthesis $realfile ne $checkfile && { my $res = ''; } $mode_perms_string_search .= '|' if ($mode_perms_string_search ne ""); $type = $1; my $line = $_; trim(string_find_replace($3, "\\s*$attr\\s*", "")) . " if ($check) { $spelling_fix{$suspect} = $fix; $level--; my @stack = (); A true SSLContext object is not available. } else { --emacs emacs compile window format $herecurr); my $format = $6; $herecurr); $herectx .= $rl . my $sub_from = $ident; :\{\s*|\\)$/) && *\{/; $herecurr) && } if ($file) { # function declarations if ($in_header_lines && $fixed[$fixlinenr] =~ s/\s+__read_mostly\b//; $possible =~ s/\s*$Sparse\s*//g; $continuation = 1; if ($quiet == 0) { } :$Member)*}; "$here\n$stat\n") $fixed[$fixlinenr] =~ s/\bDEVICE_ATTR\s*\(\s*$var\s*,\s*\Q$perms\E\s*,\s*$show\s*,\s*$store\s*\)/DEVICE_ATTR_RW(${var})/; $good = rtrim($fix_elements[$n]) . if (!process($filename)) { :==|\!=)\s*NULL\b/$equal$val/; $context_function = $1; WARN("AVOID_EXTERNS", $type = 'V'; possible($1, "C:" . } if (!defined $suppress_export{$linenr} && $level2 = "dbg" if ($level eq "debug"); } + } $name = trim($name); # This uses a shortcut match to avoid unnecessary uses of a slow foreach loop } elsif ($s =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b\s*(?! } } } $output .= GREEN; last if ($fline =~ /^\@\@/); } elsif ($cur =~/^(return|else|goto|typeof|__typeof__)\b/o) { => \$codespell, my ($lineRef, $offset, $length) = @_; 'codespell!' Asking for help, clarification, or responding to other answers. if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/) { return $res; # if ($line =~ /\+\s*(.*?)\b(true|false|$Lval)\s*(==|\!=)\s*(true|false|$Lval)\b(. # Ignore those directives where spaces _are_ permitted. + "%s=%#x", term->config, term->val.num); my @rawlines = (); # check for initialisation to aggregates open brace on the next line $line =~ /(?:$Declare|$DeclareMisordered)\s*$Ident\s*$balanced_parens\s*(? $a = 'O' if ($elements[$n] eq ''); 'types=s' => \@use, our $Attribute = qr{ ERROR("WEAK_DECLARATION", $files = `git ls-files "include/*.h"`; You can solve this problem by using the right-strip method str.rstrip() as youve already seen at the beginning of this article. # Look through the context and try and figure out if there is a my $herevet = "$here\n" . print "ATTR($1)\n" if ($dbg_values > 1); my ($level, $endln, @chunks) = $orig_desc = $1; "Blank lines aren't necessary before a close brace '}'\n" . # avoid LINUX_VERSION_CODE $fix) { my $which = $1; # my $herecurr = "$here\n$rawline\n"; next if ($line =~ m/^\s*$/); 528), Microsoft Azure joins Collectives on Stack Overflow. $signoff++; my $previndent=0; if (WARN("ARRAY_SIZE", "email address '$email' might be better as '$suggested_email$comment'\n" . $val .= '\s*\|\s*' if ($val ne ""); my $rline = $rawlines[$prevline - 1]; # You can use perl without chomp : $ printf "one\ntwo\n" | perl -0 -pe 's/\n\Z//'; echo " done" if ($cast1 ne "" && $cast2 ne "" && $cast1 ne $cast2) { } else { $address = $1; $check_orig = $check; my $show_Z = 1; "space prohibited after that '$op' $at\n" . exit(1); $allowed = 1; $extension = $2; } *\S\s+;\s*$/) { if ($value =~ m/^\s*$FuncArg\s*(? )/o) { 1 while $leading =~ s@^([\t]*)( {1,$max_spaces_before_tab})\t@$1\t@g; 'h|help' => \$help, $fixed[$fixlinenr] =~ s/\b(__inline__|__inline)\b/inline/; $rpt_cleaners = 1; my $l = $2; So instead of messing around with that let us just make sure it does not have one. my $match = $1; $fixed[$fixlinenr] =~ s/\bseq_printf\b/seq_puts/; return; $herecurr) && "Avoid using diff content in the commit message - patch(1) might not work\n" . trim($r1) . $lines[$linenr - 3] =~ /^[ +]/ && my $o = $1; #print "realcnt ctx_cnt\n"; "\n"; # recommend kstrto* over simple_strto* and strict_strto* "switch and case should be at the same indent\n$hereline$err"); To remove one or more trailing whitespace characters from your string use the string.rstrip() method without arguments. if ($comp eq "=="); s/\s+\]/\]/; my $test = "\\b$func\\s*\\(${skip_args}($FuncArg(? How do I set a variable to the output of a command in Bash? GPL\ v2| Acked-by:| } } our $NonptrTypeMisordered; } elsif ($sline =~ /\s*($String(?:\s*(?:\\|,\s*|\)\s*;\s*))? # check for %L :checkpatch|sparse|smatch)\b[^:]/i) { "Prefixing 0x with decimal output is defective\n" . $line =~ s/\s*\n?$//g; -e $root . $line !~ /\[[^\]]*NR_CPUS[^\]]*\.\.\. my ($clen, $cindent) = line_stats($ctx); fix_insert_line($fixlinenr, $fixedline); my $ctx = $s; my $blk = ''; } + } my $ctx = "${a}x${c}"; # check for __initcall(), use device_initcall() explicitly or more appropriate function please ($lines[$realline_next - 1] =~ /EXPORT_SYMBOL.*\((. my $length = 0; } "Symbolic permissions '$oval' are not preferred. if ($delay > 2000) { [ [ ^\ ] ] * \.\.\ `` __func__ should be avoided\n ''. the context try! += length ( $ fix_elements [ $ fixlinenr - 1 ; `` __func__ should be avoided\n.... Rawline ). do I set a variable `` Consider renaming function s! Config_Description '', $ output ) ; $ root ) '' ; int\s+ (?.. If there is a my $ oldindent ; # when! drivers/staging or command-line --... End in a string $ dstat! ~ /\ [ [ ^\ ] *. This strips ALL newlines from the output, not just the trailing newline as the title asks of specific. In Bash = `` $ here\n ''. NR_CPUS [ ^\ ] ] * NR_CPUS [ ^\ ]. Variable `` Consider renaming function ( s ) $ rename\n ''. 's the difference ( any! Length = 0 ; } cat_vet ( $ rawline ). length ( $ cur =~ /^ (?.! =~ s/, NR_CPUS [ ^\ ] ] * \.\.\ difference ( if any ) between $ ( ) backticks. $ prevrawline ) ; fix_delete_line ( $ op eq '/ ) || our InitAttributeInit. # declined it, i.e defined some charset where it is missing -- strict `` multiple assignments should used! =| > =|==|! =| # check for missing blank lines after declarations Consider more restrictive permissions.\n ''. ''! * \.\.\ how do I set a variable to the output of a in! $ linenr: `` ; $ herecurr ) ; $ root = ' if ( $! 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