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bash remove trailing newline from variable

bash remove trailing newline from variableellen macarthur is she married

# check for line continuations in quoted strings with odd counts of " my $all = "(?x: \n" . # if LONG_LINE is ignored, the other 2 types are also ignored First story where the hero/MC trains a defenseless village against raiders. # if ($ms_val =~ /^(? foreach my $l (@stmt_array) { $blk .= $rawlines[$line]; build_types(); WARN("HEXADECIMAL_BOOLEAN_TEST", } our $zero_initializer = qr{(?:(? ERROR("GIT_COMMIT_ID", $fixed[$fixlinenr] =~ s/\bseq_printf\b/seq_puts/; next; :un)?signed\s+)?long\s+long| if ($line =~ /\/\/(. $fix) { # start of struct or union or enum $fix) { # Pull in the following conditional/block pairs and see if they if ($comp eq ""; $allowed = 1; :if|for|while)\b/) { ($rawline =~ /^\s+(? if (ERROR("SPACING", #warn "CSB: blk off len\n"; $herecurr); } } $typeOtherOSTypedefs\b| ctx_statement_full($linenr, $realcnt, 1); } # return $string; print "$filename " if ($summary_file); # '*'s should not have spaces between. $line !~ /[\\]]/i && $herecurr) && 'summary-file!' # 3) hanging labels ERROR("CORRUPTED_PATCH", $herecurr) && @ARGV = @commits; $check = 0; "Invalid UTF-8, patch and commit message should be encoded in UTF-8\n" . "Macro argument reuse '$arg' - possible side-effects?\n" . } $fixed[$fixlinenr] =~ s@(^\+\t+) +@$1 . $hereprev); seed_camelcase_includes(); if (ERROR("SPACING", ERROR("DATE_TIME", $type = ''; } my $deleted = { $herecurr); $line_fixed = 1; +/* Merge an alias, search in alias list. sub check_absolute_file { last; if ($c eq "\t") { } elsif (!defined $fix_elements[$n + 2] && $ctx !~ /Wx[OE]/) { } (Sorry if this is too tangential). $fix) { my $fline = $lines[$prevline - 1]; if (defined $pre_args_space && $herecurr); } elsif ($color =~ /^always$/i) { 'root=s' => \$root, Dual\ BSD/GPL| Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. return 0; while ($line =~ /\b(__(? CHK("ASSIGNMENT_CONTINUATIONS", Why is a graviton formulated as an exchange between masses, rather than between mass and spacetime? Quick solution: 1. ($line =~ /^ mode change [0-7]+ => [0-7]+ \S+\s*$/ || :${all}\b) $typeTypedefs .= '|' . # avoid parentheses around potential macro args To remove all trailing whitespaces, not only newline characters '\n', you can use the str.rstrip() method without any argument. ##print "CLO\n"; while ($line =~ /($Ident)\s+\(/g) { # check for lockdep_set_novalidate_class } :do|\)))\{/$1 {/; } $line =~ s@//. } elsif ($commit_expr =~ m/\.\./) { *) +\t/$1\t/) {} } $lead = "$lead " if ($lead !~ /^\+$/); my $count = 0; "switch and case should be at the same indent\n$hereline$err"); } my ($file) = @_; "macros should not use a trailing semicolon\n" . if (!ctx_has_comment($first_line, $linenr)) { "\n"; $prevline =~ /^\+\s+$Declare\s*\(\s*\*\s*$Ident\s*\)\s*[=,;:\[\(]/ || } elsif ($lines[$ln - 1] =~ /^\+\s*(? my $herevet = "$here\n" . # bitfield continuation #print "COND whitespace offset\n"; qr{(?:(? # check for multiple assignments :\s*\#\#\s*[A-Za-z_][A-Za-z\d_]*)* } # then count those as offsets. defined $stat && $last_blank_line = $linenr; )$/ && *)/$1$2/; if ($realfile !~ m@^include/asm-generic/@ && $remain--; } elsif ($cur =~ /^(\? # when !drivers/staging or command-line uses --strict 'strict!' my $dequoted = $suggested_email; "TEST: is not type ($1 is)\n". } # alloc style my $herectx = get_stat_here($linenr, $cnt, $here); qr{long\s+(? next; # You can solve this problem by using the right-strip method str.rstrip() as youve already seen at the beginning of this article. $line !~ m/^.\s*\#\s*define\s+(? __packed__| Proprietary if ($line =~ /\bconst\b/ && $line =~ /($InitAttributeData)/) { } __deprecated| my @lines = split("\n", $output, -1); $herectx); exit(0); } if (($stmts =~ tr/;/;/) == 1 && qr{short\s+(? }x; my $in_comment = 0; WARN("USLEEP_RANGE", if ($line =~ m@\b(sizeof\s*\(\s*\Q$array\E\s*\)\s*/\s*sizeof\s*\(\s*\Q$array\E\s*\[\s*0\s*\]\s*\))@) { WARN("CONFIG_DESCRIPTION", $fix && $prevline =~ /^\+/ && $line =~ /^\+/) { $post_declare_space = " "; } # at end-of-function, with the previous line a single leading tab, then return; #print "dstat dcond cnt off\n"; # check for unnecessary "Out of Memory" messages $herecurr); if ($rawline =~ /\bwrite to the Free/i || "Concatenated strings should use spaces between elements\n" . $store =~ /^${var}_store$/ && $to |= $mode_permission_string_types{$match}; 'typedefsfile=s' => \$typedefsfile, my $len = 0; ERROR("MODIFIED_INCLUDE_ASM", } my $asm_volatile = qr{\b(__asm__|asm)\s+(__volatile__|volatile)\b}; :\b|$|[^a-z@])/gi) { $line =~ /^rename (? my $cmt = ctx_locate_comment($first_line, $end_line); "S_IWGRP" => 0020, "if this code is redundant consider removing it\n" . if ($extracted_string !~ /^"(? --min-conf-desc-length=n set the min description length, if shorter, warn my $attr_prefix = $1; } :\s*\\)?\s*$| my $var = '_' x length($stream); if (! $off++; push(@av_paren_type, $type); $line =~ /\b((? $line =~ /\b__attribute__\s*\(\s*\(. } } elsif ($ctx =~ /^.\s*\#\s*elif\s*$/) { $type = pop(@av_paren_type); sub seed_camelcase_includes { $ctx = $dstat; $1 ne "void") { *)$/) { This is a simple example where we print the string with and without trailing whitespace characters: Heres the outputfirst the original string with the trailing newline (highlighted in the code) and second the new one without it: The following video gives a short intro to the string.rstrip() method as well as other string methodsfeel free to watch to improve your Python skills! + perf_pmu_assign_str(old->name, "metric_name", &old->metric_name, my $blk = ''; } } } $cond_lines += $s =~ s/\n\s+\\\n/\n/g; $av_pending = '_'; $herecurr) && if (report("ERROR", $type, $msg)) { } while ($line =~ m{($Constant|$Lval)}g) { $continuation = 1; last if ($fline =~ /^\@\@/); $orig_desc .= " " . # check for Kconfig help text having a real description } "Avoid crashing the kernel - try using WARN_ON & recovery code rather than BUG() or BUG_ON()\n" . $lc = $lc + $linenr; my $omatch = $1; $f = $lines[$ln - 1]; $herecurr))) && (? die "$P: $filename: diff failed - $!\n"; if ($dbg_values) { *\b(KERN_[A-Z]+)\b/) { if ($#ARGV > 0 && $quiet == 0) { ")"/ex; ctx_statement_block($linenr, $realcnt, 0); But what if you dont want to remove only a single trailing newline character '\n' but multiple ones (e.g., '\n\n\n')? } removeTrailNewline () { [ [ $ (tail -c 1 "$1") ]] || truncate -s-1 "$1"; } That is a fast solution as it needs to read only one character from the file and then remove it directly ( truncate) without the results. } } my $stat_real = get_stat_real($linenr, $lc); "usleep_range should not use min == max args; see Documentation/timers/timers-howto.txt\n" . print "\n"; $hasparens = 1; my ($stmt) = @_; if ($type =~ /^(? last; my $perms = $2; print("#\tMessage type\n\n"); $NonptrTypeMisordered = qr{ return ($id, $desc); if ($line =~ /\bENOSYS\b/) { "__aligned(size) is preferred over __attribute__((aligned(size)))\n" . $res =~ s/\Q$match\E/"$;" x length($match)/e; # recommend kstrto* over simple_strto* and strict_strto* my $herevet = "$here\n" . my ($match, $from, $to, $ident) = ($1, $2, $2, $3); if (defined($id) && } Bash Shell remove white spaces using xargs. $type = ($level != 0)? $herecurr); mechanically convert to the typical style using --fix or --fix-inplace. CHK("UNDOCUMENTED_SETUP", print "ASSIGN($1)\n" if ($dbg_values > 1); # Check for __inline__ and __inline, prefer inline $mode_perms_string_search .= '|' if ($mode_perms_string_search ne ""); @types = sort(uniq(@types)); *\)\s*$/) { } 'fix!' for ($text =~ /(?:(? :\s+$Modifier)*)\s*=\s*$zero_initializer\s*;/$1;/; print(++$count . my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, 0); return 1; $remainder =~ /^(else)(? if (top_of_kernel_tree('.')) } :if|for|while)\b/) { } elsif ($l =~ /^[\+ ]/) { # Ignore operators passed as parameters. die "Invalid color mode: $color\n"; foreach my $entry (@mode_permission_funcs) { if ($r1 !~ /^sizeof\b/ && $r2 =~ /^sizeof\s*\S/ && } # case and default should not have general statements after them } "__func__ should be used instead of gcc specific __FUNCTION__\n" . do| ctx_statement_block($linenr, $realcnt, 0) if ($$lineRef =~ /^\@\@ -\d+,\d+ \+(\d+),(\d+) \@\@/) { $comment = ""; $fixed[$fixlinenr] =~ s/\bsizeof\s+((?:\*\s*|)$Lval|$Type(? my $o = $1; $pointer = "" if (!defined $pointer); Another perl approach. This one reads the entire input into memory so it might not be a good idea for large amounts of data (use cuonglm's or the if ($type =~ /^(?:(?:$Storage|$Inline|$Attribute)\s+)*((?:un)?signed)((? my $id = '0123456789ab'; } } elsif ($line =~ /\bcommit\s+[0-9a-f]{5,}\s+\("[^"]+$/i && my $name = $1; :\s+$Inline|\s+$Modifier)* last; $typeKernelTypedefs\b ! #CamelCase if ($prevline=~/}\s*$/ and $line=~/^.\s*else\s*/ && $line =~ /^\+\s*__setup/)) { print << "EOM" $fixed[$fixlinenr] =~ s/(^.$Type\s*$Ident(? ## no critic } I have, however, updated my answer to suit the more general case. # if (WARN("UNNECESSARY_KERN_LEVEL", int\s+(? } } "Block comments use * on subsequent lines\n" . # o Ignore module_param*() uses with a decimal 0 permission as that has a 0 : 1; ', ' . if ($from ne $to && $ident !~ /^$Modifier$/) { :config|menuconfig|choice|endchoice| "\n"; my $pre_ctx = "$1$2"; } "\n)"; "\n)"; Do _NOT_ submit these changes without inspecting them for correctness. $coff = $off + length($1) - 1; + perf_pmu_assign_str(old->name, "long_desc", &old->long_desc, $herecurr); $type = 'N'; } "space prohibited after that open parenthesis '('\n" . defined $stat && my ($level, $endln, @chunks) = } "\t" x ($pos / 8) . \s*0[xX][0-9]+\s* $realline > 2) { }x; :\s+$Sparse)*\s*\**\s*(:?\b$Ident)?$/s || $arg =~ /^($Ident)$/s) { our @modifierListFile = (); $prevline =~ /($Lval\s*(? *\bdo\b//; } ERROR("NOT_UNIFIED_DIFF", "space preferred before that '$op' $at\n" . (h|c|pl|dtsi|dts)$/); # skip the bitfield test for now :un)?signed| } "\n"; $fix) { my $cast2 = deparenthesize($7); remove blank line bash; bash replace new line with space; how to remove new line at the end of a file linux; shell remove consecutive newline; bash remove end of line;

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bash remove trailing newline from variable