bash remove trailing newline from variable

:[a-z_]+|)for_each[a-z_]+)\s*\(|do\b|else\b)/ && $line !~ /^.\s*\#/) { foreach my $entry (keys %mode_permission_string_types) { $fixed_line = $fixed_line . "quoted string split across lines\n" . # 3) labels. if ($context =~ /\b(\w+)\s*\(/) { "\n"; my $orig_commit = ""; *?\/\*/ && #starting /* } } # foo bar; where foo is some local typedef or #define } :un)?signed}, $herecurr) && Reported-by:| $possible =~ s/\s*$Storage\s*//g; print "\nNOTE: $prefix message types:"; defined $stat && #print "cond block allowed\n"; *)$/) { } else { # Look through the context and try and figure out if there is a "Concatenated strings should use spaces between elements\n" . WARN("USE_SPINLOCK_T", # check for redundant bracing round if etc ("$4" eq ";" ? for (; ($n % 8) != 0; $n++) { # typecasts on min/max could be min_t/max_t my $valid_licenses = qr{ :un)?signed\s+)?long\s+long\s+int}, "return of an errno should typically be negative (ie: return -$1)\n" . $comment = $2 if defined $2; :$barrier_stems) sub seed_camelcase_includes { "Single statement macros should not use a do {} while (0) loop\n" . $fixed[$fixlinenr] =~ if ($remainder =~ /^#\s*(? "; $line =~ /#\s*define\s+\w+\s+\(?\s*1\s*([ulUL]*)\s*\ || defined CONFIG__MODULE :un)?signed\s+)?long}, + memset(newval, 0, sizeof(newval)); exit($exitcode); $curpos = pos($string); $type = '{'; if (ERROR("SPACING", sub fix_inserted_deleted_lines { "\n"; length(expand_tabs(substr($line, 1, length($line) - length($1) - 1))) <= $max_line_length) { $fix && $prevrawline =~ /^\+/) { $camelcase_file_seeded = 1; $check) { } elsif ($cur =~/^(return|else|goto|typeof|__typeof__)\b/o) { | [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15 if (statement_lines($cond) > 1) { if ($from ne $to) { my $match = $2; "Non-standard signature: $sign_off\n" . (If It Is At All Possible). $fix) { if (WARN("ONE_SEMICOLON", $line =~ s/\s*\n?$//g; my $next_delete = 0; {)/) { $Storage| if ($line =~ /\b$Type\s+$Inline\b/ || } # check for %Z $line !~ /\[[^\]]*\.\.\. $camelcase_cache = ".checkpatch-camelcase.date.$last_mod_date"; # actual declarations WARN("UNNECESSARY_BREAK", "arguments for function declarations should follow identifier\n" . $fixed[$fixlinenr] =~ while ($cond_ptr != $cond_lines) { my $oval = ""; } WARN("STATIC_CONST_CHAR_ARRAY", } qr{int\s+long\s+(? $sig_nospace =~ s/\s//g; # Check for __attribute__ format(scanf, prefer __scanf $fixedline =~ s/"\s*$//; $hereprev) && > Scan alias definitions and remove leading zeroes, spaces, "space prohibited after that open parenthesis '('\n" . I don't know if my step-son hates me, is scared of me, or likes me? So if you're going to do this, you should be aware that all IFS characters are my ($linenr, $remain) = @_; "Unnecessary parentheses around function pointer $var\n" . } } elsif ($commit_expr =~ m/\.\./) { :if|for|while)\b/) { # it there is no point in retrying a statement scan $fixed[$fixlinenr] =~ s/(\bstatic\s.*? my @array = split(/,/, join(',', @$arrayRef)); } $line !~ /\[[^\]]*NR_CPUS[^\]]*\.\.\. : :if|for|while)\b/) { if ($realfile =~ /Kconfig/ && if ($line =~ /^.\s*\bstruct\s+spinlock\s+\w+\s*;/) { $s =~ s/{. for (; $remain > 0; $line++) { } my $stmt_statements = $#stmt_statements + 1; my $omatch = $1; if ($clean == 0 && $fix && + * and terms specified as event=0x91 (read from JSON files). $sline =~ /^.\s*else\s*\{\s*$/) { Using this, the path can have a trailing slash and you have got it stuck in the variable. 3. $1 !~ /utf-8/i) { (!defined($p) || $p =~ /(? my $setup_docs = 0; $fix) { $attr =~ /($InitAttributePrefix)(. fix_insert_line($fixlinenr, $fixedline); # suppression flags )\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) { $line !~ /\btypedef\s+$Type\s*\(\s*\*?$Ident\s*\)\s*\(/ && $stmt =~ s/^\s*//; + &newalias->metric_name); The str.strip() method trims whitespaces on the right and returns a new string. if ($line =~ /\bif\s*(?:\(\s*){$count,$count}$LvalOrFunc\s*($Compare)\s*$LvalOrFunc(? if (-f $conf) { file. if (ERROR("OPEN_BRACE", if ($line =~ /^.\s*(struct\s+mutex|spinlock_t)\s+\S+;/ || } qr{long\s+long\s+(? if ($rtrim_before) { } return "$path/$bin"; Why is sending so few tanks Ukraine considered significant? my $conf = which_conf($configuration_file); $comment = '..'; if ($block =~ /^\s*\{/) { $good = $fix_elements[$n] . } statement_rawlines($whitespace) - 1; :goto|return)\b/) { if ($rawline =~ /\\$/ && $sline =~ tr/"/"/ % 2) { $fix_elements[$n + 1]; WARN("CONSIDER_KSTRTO", $exit = 1; $realfile =~ s@^([^/]*)/@@ if (!$file); } WARN("MISSING_BREAK", our $cnt_chk = 0; $herecurr); } (?:(?:\s|\*|\[\])+\s*const|(?:\s|\*\s*(?:const\s*)?|\[\])+|(?:\s*\[\s*\])+)? $fix && $prevline =~ /^\+/ && $line =~ /^\+/) { "do not initialise globals to $1\n" . MODULE_[A-Z_]+| "Prefer $newfunc over $oldfunc with multiply\n" . if ($var =~ /^$Binary$/) { substr($s, 0, length($c), ''); "$ucfirst_sign_off $email"; # $stat =~ /^\+(?:.*? $hereprev) && # Get the full operator variant. next if (!$hunk_line || $line =~ /^-/); $current_comment = ''; if ($bad_specifier ne "") { # Check for potential 'bare' types if ($realfile =~ /\. } $declare . } WARN("AVOID_EXTERNS", for (my $n = 0; $n < $cnt; $n++) { } our $clean = 1; "Use of the '$1' macro makes the build non-deterministic\n" . exit(2); } list_types(0) if ($list_types); if ($line =~ m@^.\s*\#\s*if. # Track the 'values' across context and added lines. :$Ident|-?$Constant);$/ && # foo(); If you want an exact equivalent to chomp , the first method that comes to my mind is the awk solution that LatinSuD already posted . I'll add som my $stmt_cnt = statement_rawlines($ctx); } my $ext_type = "Invalid"; $herecurr); :,|;|\)))\S/) { + list_for_each_entry(term, &alias->terms, list) { %suppress_ifbraces = (); if ($prevline =~ /^[\+ ]\s*$/ && our $mode_perms_string_search = ""; "space required after that '$op' $at\n" . if ($line =~ /\bwaitqueue_active\s*\(/) { # none on the first line, and are going to readd them $herecurr); my $word = $1; $commit_log_possible_stack_dump = 1; "\t" x ($pos / 8) . } substr($res, $off, 1, $c); } $prevrawline !~ /\*\/[ \t]*$/) || #no trailing */ s@\Q$sub_from\E@$sub_to@; + zfree(&newalias->str); $equal = "" if ($4 eq "!="); :un)?signed\s+int}, $fix) { $off++; if (length($typedefsfile)) { "waitqueue_active without comment\n" . $ref =~ s/\s//g; 'codespellfile=s' => \$codespellfile, Why is a graviton formulated as an exchange between masses, rather than between mass and spacetime? $fixlinenr = -1; fix_delete_line($fixlinenr - 1, $prevrawline); } sub parse_email { LINENR => $linenr, print("$file: '$line' invalid - ignored\n"); } } | my $ucfirst_sign_off = ucfirst(lc($sign_off)); if ($prevline =~ /^\+.*$Lval\s*(? $line =~ /^\+\s*MODULE_/i || WARN("USE_NEGATIVE_ERRNO", $suppress_whiletrailers{$line_nr_next + push(@lines, $line); } } } qr{(?:(? } $fix) { } elsif ($octal_perms eq "0644" || + perf_pmu_assign_str(old->name, "long_desc", &old->long_desc, How dry does a rock/metal vocal have to be during recording? $herecurr) && next if ($realfile !~ /\. $octal_perms eq "0444") { "Avoid using bool as bitfield. $av_pending = 'V'; ($previndent, $stashindent) = ($stashindent, $indent); sub get_quoted_string { (?:$Storage\s+)? CRLF removing examples or: 2. "A patch subject line should describe the change not the tool that found it\n" . | [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte my ($whitespace) = ($cond =~ /^((? Would Marx consider salary workers to be members of the proleteriat? ##print "CLO\n"; $line =~ /^([0-9a-fA-F]{40,40}) (. $level = "dbg" if ($level eq "debug"); # context. s/\[\s+/\[/; :if|else|do)\b/s)) { } 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; :un)?signed\s+)?int "Macros starting with if should be enclosed by a do - while loop to avoid possible if/else logic defects\n" . #print "APW: ALLOWED: block\n"; Using default one. )\s*([=;])\s*/"$1" . $git_range = "-$2 $1"; my $ops = qr{ my $first_line = 0; } # check for DT compatible documentation my $suggested_email = format_email(($email_name, $email_address)); :\s+$Ident)?\s*$/) { $color = (-t STDOUT); return| $herecurr); if (!ctx_has_comment($first_line, $linenr)) { $id = undef; } if ($nindent > $indent) { ($edge) = $1; $line_fixed = 1; } if ($line =~ /\b__read_mostly\b/ && $herecurr); my $var = $1; for (my $linenr = $first_line; $linenr < $end_line; $linenr++) { long\s+long\s+int\s+(? if (!show_type($type) || $fixed[$fixlinenr] =~ s/\b$constant_func\b/$func/g; } my $in_comment = 0; Make exceptions when the previous string ends in a print "$linenr > .$outline\n"; # indentation of previous and current line are the same elsif ($ctx !~ /[EWC]x[CWE]/) { } $herecurr); "\n"; WebLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH 1/3 v2] perf alias: Remove trailing newline when reading sysfs files @ 2018-06-15 10:11 Thomas Richter 2018-06-15 10:11 ` [PATCH 2/3 v2] perf alias: Rebuild alias expression string to make it comparable Thomas Richter ` (3 more replies) 0 siblings, 4 replies; 8+ messages in exit(0); my $count = $openparens =~ tr@\(@\(@; "space required before the open parenthesis '('\n" . } )\bmemcmp\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) { EOM # check for line continuations outside of #defines, preprocessor #, and asm my (@chunks); my ($current_comment) = ($rawlines[$end_line - 1] =~ m@.*(/\*.*\*/)\s*(? if (WARN("BAD_SIGN_OFF", my $comment_edge = 0; $type = 'E'; my $newfile = $filename; { # if ($^V && $^V ge 5.10.0 && foreach my $file (@include_files) { "$herectx"); *//g; } if ($line =~ /^\s*signed-off-by:/i) { last if (!defined $lines[$line]); } :$Storage\s+)?$Type\s*($Ident)\s*$balanced_parens\s*{/s) { "trailing semicolon indicates no statements, indent implies otherwise\n" . if ($quiet == 0) { $chk_signoff = 0 if ($file); sub cat_vet { "Possible switch case/default not preceded by break or fallthrough comment\n" . # case and default should not have general statements after them my ($linenr, $lc) = @_; This will replace new line (Input record separator) with "". :$Ident|-?$Constant)$/ && # for () bar() WARN("PRINTK_RATELIMITED", '(' : ''; $herecurr); } } # 2) any opening brace { on end of the line if ($^V lt 5.10.0) { \? if ($indent % 8) { Here we are removing the trailing slash if there is one. "Unnecessary parentheses around $var\n" . $level++; my $found = $1; # If we have no input at all, then there is nothing to report on } } $ok = 1 if ($rl =~ /\{/ && $n == 0); if ($prefix !~ /$Type\s+$/ && $fix_elements[$n + 2] =~ s/^\s+//; $type = 'E'; if ($line =~ /\bstatic\s+char\s+(\w+)\s*\[\s*\]\s*=\s*"/) { if (!defined($stat_real) || */ || $realfile =~ /Kbuild. $files = `find $root/include -name "*.h"`; *)-(\d+)$/) { my $res = ''; for my $arg (split(/\s*,\s*/, $ctx)) { } else { $define_stmt =~ s/$;//g; print << "EOM"; } :else|elif))/o) { trim(string_find_replace($2, "\\s*$attr\\s*", " ")) . " print "QUESTION($1)\n" if ($dbg_values > 1); } $type = 'N'; if ($paren_space =~ /\n/) { $fix) { $line =~ /\bif\s*((? my $linecount = 0; defined $stat && $av_pend_colon = 'L'; # and avoid what seem like struct definitions 'struct foo {' @@ -310,7 +378,8 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name. $loff = $len; $line =~ /\b__weak\b/)) { }x; "Consecutive strings are generally better as a single string\n" . } my $arg = trim($1); # (char*[ const]) I don't know if my step-son hates me, is scared of me, or likes me? )}; (If It Is At All Possible). $herectx) && # comparisons with a constant or upper case identifier on the left if ($line =~ /\bjiffies\s*$Compare|$Compare\s*jiffies\b/) { # check if this appears to be the start function declaration, save the name length($line) > 75 && $ printf "one\ntwo" | perl -0 -pe 's int" . __iomem| qr{fastcall}, } __percpu| $type = 'N'; $line =~ m/\b(? qr{int\s+(? my $kernel_type = 'u'; $mode_perms_search .= '|' if ($mode_perms_search ne ""); # check for space after cast like "(int) foo" or "(struct foo) bar" # check for Kconfig help text having a real description WARN("HEXADECIMAL_BOOLEAN_TEST", Hes author of the popular programming book Python One-Liners (NoStarch 2020), coauthor of the Coffee Break Python series of self-published books, computer science enthusiast, freelancer, and owner of one of the top 10 largest Python blogs worldwide. if (!defined($stat_real)) { } $var2 =~ s/\s//g; " . :^|\s)(/\S*)}g) { } Bash Shell remove white spaces using xargs. 'ignore=s' => \@ignore, # check for c99 types like uint8_t used outside of uapi/ and tools/ my $msg_level = \&ERROR; 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 $hereprev); 'EXTRA_CFLAGS' => 'ccflags-y', :;|=|\[|\() ERROR("INLINE_LOCATION", :un)?signed\s+)?short\s+int}, + } "Prefer ARRAY_SIZE($array)\n" . ERROR("TEST_NOT_TYPE", Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. # If we are about to drop off the end, pull in more our $Sparse = qr{ So instead of messing around with that let us just make sure it does not have one. # unary ++ and unary -- are allowed no space on one side. # Ignore operators passed as parameters. 'types=s' => \@use, WARN("MISORDERED_TYPE", # check for single line unbalanced braces return "" if (!defined($string)); return "$path/$conf"; } [\x09\x0A\x0D\x20-\x7E] # ASCII my $oldindent = $1; } (? } my $email = $4; $rawline !~ m/^$UTF8*$/) { # Strip the diff line prefixes and rip blank lines at start and end. # check indentation starts on a tab stop my $ctx_ln = $linenr; # "Prefer ether_addr_copy() over memcpy() if the Ethernet addresses are __aligned(2)\n" . } # Make sure we remove the line prefixes as we have # conversions like "FOO < baz() + 5" being "misfixed" to "baz() > FOO + 5" # while read line ; do $opv eq '*U' || $opv eq '-U' || __weak # Delete all trailing blank lines. # $fix) { WebUsing Bash console it is possible to remove newline characters in the following ways. if (!$chk_patch && !$is_patch) { } $line_fixed = 1; + zfree(&newalias->desc); }x; #print "LINE\n"; my $s = $stat; 'show-types!' if ($#ARGV > 0 && $quiet == 0) { if ($^V && $^V ge 5.10.0 && __naked| Site Maintenance- Friday, January 20, 2023 02:00 UTC (Thursday Jan 19 9PM Were bringing advertisements for technology courses to Stack Overflow, Remove the final newline (\n) from a shell pipeline. if (WARN("TYPECAST_INT_CONSTANT", $dstat !~ /^for\s*$Constant\s+(? our $UTF8 = qr{ qr{struct\s+$InitAttribute\s+$Ident}, if ($sline =~ /^\+\{\s*$/ && } # "joe smith ]+>$/) { } "Use DEVICE_ATTR_RW\n" . (!defined $lines[$realline_next - 1] || } :config|menuconfig|choice)\b/) { "open brace '{' following function definitions go on the next line\n" . ## "No blank lines before declarations\n" . if ($summary && ! if ($^V && $^V ge 5.10.0 && print "ASSIGN($1)\n" if ($dbg_values > 1); if ($level eq 'ERROR') { Quick solution: 1. "space prohibited before that '$op' $at\n" . $line !~ /\b__bitwise\b/) { my ($first_line, $end_line) = @_; } } while ($fixed[$fixlinenr] =~ Can I (an EU citizen) live in the US if I marry a US citizen? + ret = 0; ($line =~ /EXPORT_SYMBOL.*\((. qr{(?:(? --ignore TYPE(,TYPE2) ignore various comma separated message types my $inserted = { "else is not generally useful after a break or return\n" . $camelcase{$word} = 1; } !\+)|\*|\&\&|\&)/o) { } # is the start of a diff block and this line starts @@ -262,6 +264,27 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name, + /* Scan event and remove leading zeroes, spaces, newlines, some qr{${Ident}_handler}, possible($1, "D:" . return $status =~ /obsolete/i; "single byte memset is suspicious. -e "$root/$p1_prefix") {

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