Edman's questions

Estou executando o GNU Ed no Fedora Linux. O manual GNU Ed refere-se enigmaticamente a um 'r'sufixo para o scomando, para ser diferenciado do 'r'comando. Tudo o que diz sobre isso é o seguinte:

O sufixo 'r'faz com que o reda última pesquisa seja usado em vez do re da última substituição (se a pesquisa ocorreu após a substituição).

Não consigo ver sua utilidade, especialmente se usarmos Ed com rlwrap, com o qual podemos modificar facilmente a última substituição. Alguém pode fornecer um caso de uso 'r'como sufixo?

No Ed posso testar espaços em branco com este regex: g/ *$/p. Suponho que não exista uma maneira de mostrar espaços em branco, talvez passando o conteúdo do buffer para outro comando shell.

Existe uma maneira de Ed criar backups do arquivo atualmente carregado no buffer. Ocasionalmente, substituí meu arquivo inadvertidamente e descobri que ele não é recuperável. Ou seja, fazendo um arquivo de backup com um til anexado ao nome do arquivo original (por exemplo, meuarquivo.txt~), que conteria a versão anterior do arquivo.

Eu quero criar um sedcomando que removerá todos esses caracteres estranhos de um determinado documento:

sed -n 's/\|®MD-IT¯\|®MD\+BO¯\|®MDNM¯®LL\.8LI,0LI¯\|®LL0LI,0LI¯\|®MD\+IT¯\|®LL.8LI,0LI¯®MDIT¯\|®MDNM¯®FL¯®LL.8LI,0LI¯\|®FL¯®MD-BO¯\|®FL¯®MD-BO¯\|®MD-BO¯\|¯®OF1IN,1IN¯®FC¯®LL1LI,0LI¯\|\|®SF1,1¯\|®FM1FT=0LI,LR=1;\|®MDSU¯®FN1¯\|®MDNM¯¯\|®IV-RTF\|\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\|¯®BF0¯\|®FS1\|-------------------------------------\|¯®FW1\|\|//gp'

Esses códigos foram todos criados em outro aplicativo Nota Benee tenho muitos arquivos com esses códigos que gostaria de converter em texto simples e possivelmente até remarcação.

O problema é que os caracteres não são substituídos. Eu tentei fazer isso Sublime Texte consegui remover o documento usando find-replace (regex). Seria melhor para mim criar um sedscript do que usar Sublimepara essa tarefa.

Eu também tentei usar Ed, mas também não pegou as substituições.

Aqui está um arquivo nb de amostra quando aberto em `Sublime Text:

®SSDEFAULTS¯®LR1¯®JU¯®MD+BO¯®UFTimes New Roman¯®SZ12Pt¯Glossary®MD+BO¯®TS.5IN,1IN,1.5IN,2IN,2.5IN,3IN,3.5IN,4IN,4.5IN,5IN,5.5IN,6IN¯    ®MD-BO¯
®NJ¯®LR1¯®LL.5LI,0LI¯®MD+BO¯®LL0LI,0LI¯®MDNM¯®LR1¯®LL.5LI,0LI¯A fortiori proposition: If X is true, then how much greater is Y true? To move logically from a stronger argument to establish a weaker argument. The weaker argument is sometimes presented by the speaker as the stronger argument.
®LL0LI,0LI¯®LR1¯®LL.5LI,0LI¯®LL0LI,0LI¯®LR1¯®LL.5LI,0LI¯Accusative of motion/direction - Indicates movement to the noun marked by the accusative and is to be distinguished from the accusative of local determination which indicates location without motion (Joüon and Muraoka 2006, 428).
Anadiplosis - A figure of speech in which the word that a colon ends with, or a like sounding word, is the word that begins the next colon ®GC|CI:R#=47;AU=Brown, Raymond E.;YR=1990;TI=New Jerome biblical commentary;PG=245;XT=;F[=;F]=;F#=;ID=;XX=Print;CT=;FL=¯(Brown, Fitzmyer, Murphy, et al. 1990, 245)®GC¯.
®LL0LI,0LI¯®LR1¯®LL.5LI,0LI¯®LL0LI,0LI¯®LR1¯®LL.5LI,0LI¯Anaphoric use of the article - When the article is used to indicate that the word to which it is attached is the one previously mentioned (Williams and Beckman 2007, 36). 
®LL0LI,0LI¯®LR1¯®LL.5LI,0LI¯®LL0LI,0LI¯®LR1¯®LL.5LI,0LI¯Anaptyxis - The insertion of a vowel into a word to avoid a consonant cluster.
®LL0LI,0LI¯®LR1¯®LL.5LI,0LI¯®LL0LI,0LI¯®LR1¯®LL.5LI,0LI¯Aoristic perfect - I use the phrase 'aoristic perfect' to refer to one of the ways the qatal form can be rendered into English. Aoristic perfect denotes a past situation the implications of which are no longer felt in the present. The situation may have extended over a period of time and it may have occurred more than once. It may have occurred in the recent or distant past but from the standpoint of the speaker it is to be regarded as a fact having occurred and hence as a fact belonging to the past (Joüon and Muraoka 2006, 337; Driver 1998, 12). The term 'aoristic perfect' and indeed the other categorizations of perfect in this grammar, all relate to the interpretation of qatal verbs in their given contexts. The qatal form in and of itself does not convey these meanings. 
®LL0LI,0LI¯®LR1¯®LL.5LI,0LI¯®LL0LI,0LI¯®LR1¯®LL.5LI,0LI¯Beth essentiae - ®LAHebrew¯ÿHá®LAEnglish¯ that is used to indicate the predicate of a clause or a word used predicatively (Joüon and Muraoka 2006, 458).

É assim que eu gostaria que o texto fosse lido:

Glossary    
A fortiori proposition: If X is true, then how much greater is Y true? To move logically from a stronger argument to establish a weaker argument. The weaker argument is sometimes presented by the speaker as the stronger argument.
Accusative of motion/direction - Indicates movement to the noun marked by the accusative and is to be distinguished from the accusative of local determination which indicates location without motion (Joüon and Muraoka 2006, 428).
Anadiplosis - A figure of speech in which the word that a colon ends with, or a like sounding word, is the word that begins the next colon (Brown, Fitzmyer, Murphy, et al. 1990, 245).
Anaphoric use of the article - When the article is used to indicate that the word to which it is attached is the one previously mentioned (Williams and Beckman 2007, 36). 
Anaptyxis - The insertion of a vowel into a word to avoid a consonant cluster.
Aoristic perfect - I use the phrase 'aoristic perfect' to refer to one of the ways the qatal form can be rendered into English. Aoristic perfect denotes a past situation the implications of which are no longer felt in the present. The situation may have extended over a period of time and it may have occurred more than once. It may have occurred in the recent or distant past but from the standpoint of the speaker it is to be regarded as a fact having occurred and hence as a fact belonging to the past (Joüon and Muraoka 2006, 337; Driver 1998, 12). The term 'aoristic perfect' and indeed the other categorizations of perfect in this grammar, all relate to the interpretation of qatal verbs in their given contexts. The qatal form in and of itself does not convey these meanings. 

|> sed -n l Glossary.NB
\256SSDEFAULTS\257\256LR1\257\256JU\257\256MD+BO\257\256UFTimes New R\
oman\257\256SZ12Pt\257Glossary\256MD+BO\257\256TS.5IN,1IN,1.5IN,2IN,2\
.5IN,3IN,3.5IN,4IN,4.5IN,5IN,5.5IN,6IN\257\t\256MD-BO\257\r$
\256NJ\257\256LR1\257\256LL.5LI,0LI\257\256MD+BO\257\256LL0LI,0LI\257\
\256MDNM\257\256LR1\257\256LL.5LI,0LI\257A fortiori proposition: If X\
 is true, then how much greater is Y true? To move logically from a s\
tronger argument to establish a weaker argument. The weaker argument \
is sometimes presented by the speaker as the stronger argument.\r$
\256LL0LI,0LI\257\256LR1\257\256LL.5LI,0LI\257\256LL0LI,0LI\257\256LR\
1\257\256LL.5LI,0LI\257Accusative of motion/direction - Indicates mov\
ement to the noun marked by the accusative and is to be distinguished\
 from the accusative of local determination which indicates location \
without motion (Jo\374on and Muraoka 2006, 428).\r$
Anadiplosis - A figure of speech in which the word that a colon ends \
with, or a like sounding word, is the word that begins the next colon\
 \256GC|CI:R#=47;AU=Brown, Raymond E.;YR=1990;TI=New Jerome biblical \
commentary;PG=245;XT=;F[=;F]=;F#=;ID=;XX=Print;CT=;FL=\257(Brown, Fit\
zmyer, Murphy, et al. 1990,\240245)\256GC\257.\r$
\256LL0LI,0LI\257\256LR1\257\256LL.5LI,0LI\257\256LL0LI,0LI\257\256LR\
1\257\256LL.5LI,0LI\257Anaphoric use of the article - When the articl\
e is used to indicate that the word to which it is attached is the on\
e previously mentioned (Williams and Beckman 2007, 36). \r$
\256LL0LI,0LI\257\256LR1\257\256LL.5LI,0LI\257\256LL0LI,0LI\257\256LR\
1\257\256LL.5LI,0LI\257Anaptyxis - The insertion of a vowel into a wo\
rd to avoid a consonant cluster.\r$
\256LL0LI,0LI\257\256LR1\257\256LL.5LI,0LI\257\256LL0LI,0LI\257\256LR\
1\257\256LL.5LI,0LI\257Aoristic perfect - I use the phrase 'aoristic \
perfect' to refer to one of the ways the qatal form can be rendered i\
nto English. Aoristic perfect denotes a past situation the implicatio\
ns of which are no longer felt in the present. The situation may have\
 extended over a period of time and it may have occurred more than on\
ce. It may have occurred in the recent or distant past but from the s\
tandpoint of the speaker it is to be regarded as a fact having occurr\
ed and hence as a fact belonging to the past (Jo\374on and Muraoka 20\
06, 337; Driver 1998, 12). The term 'aoristic perfect' and indeed the\
 other categorizations of perfect in this grammar, all relate to the \
interpretation of qatal verbs in their given contexts. The qatal form\
 in and of itself does not convey these meanings. \r$
\256LL0LI,0LI\257\256LR1\257\256LL.5LI,0LI\257\256LL0LI,0LI\257\256LR\
1\257\256LL.5LI,0LI\257Beth essentiae - \256LAHebrew\257\377H\341\256\
LAEnglish\257 that is used to indicate the predicate of a clause or a\
 word used predicatively (Jo\374on and Muraoka 2006, 458).\r$
\256LL0LI,0LI\257\256LR1\257\256LL.5LI,0LI\257\256LL0LI,0LI\257\256LR\
1\257\256LL.5LI,0LI\257Classic perfect - I use the phrase 'classic pe\
rfect' to refer to one of the ways the qatal form can be rendered int\
o English. Classic perfect refers to the continuing present relevance\
 of a past situation from the perspective of the speaker (Comrie 1976\
, 52). By perfect I do not necessarily imply that a previous situatio\
n has resulted in a state but that the situation has implications rel\
evant to the present. The situation is not merely past and over but s\
omehow persists and continues to intrude into the present. Such verbs\
 are usually translated into English using the perfect or present ten\
se. I have included under this definition quasi-stative verbs which r\
efer to attributes which were acquired before, but which are assumed \
to continue in some way up to the present moment (Driver 1998, 11; Jo\
\374on and Muraoka 2006, 333; Waltke and O'Connor 1990, 487). In some\
 grammars these are treated separately. However, that creates too man\
y functions for the one perfect form. The term 'classic perfect' and \
indeed the other categorizations of perfect in this grammar all relat\
e to the \256MD+IT\257interpretation \256MD-IT\257of qatal verbs in t\
heir given contexts. The qatal form by itself does not convey these m\
eanings.\r$
\256LL0LI,0LI\257\256LR1\257\256LL.5LI,0LI\257\256LL0LI,0LI\257\256LR\
1\257\256LL.5LI,0LI\257Cohortative of praise. The cohortative is ofte\
n used in Psalms to indicate that praise, freely undertaken, has begu\
n. This usage is close to the cohortative of resolve but not identica\
l with it. The emphasis falls not on what the writer is intending to \
do, but what he has already undertaken. \r$
Cohortative of resolve - The cohortative mood normally expresses the \
will of the speaker, but when the speaker has the ability to carry ou\
t what he wants it takes on the coloring of resolve (Van der Merwe et\
 al. 1997, 152; Waltke and O'Connor 1990, 573).\r$
\256LL0LI,0LI\257\256LR1\257\256LL.5LI,0LI\257\256LL0LI,0LI\257\256LR\
1\257\256LL.5LI,0LI\257Concluding \256LAHebrew\257\377h\353\377H\351\
\256LAEnglish\257 - A special use of the word \256LAHebrew\257\377h\
\353\377H\351\256LAEnglish\257 found towards the end of several Psalm\
s and approximating in meaning to: the conclusion of the matter is th\
at\205\r$
\256LL0LI,0LI\257\256LR1\257\256LL.5LI,0LI\257\256LL0LI,0LI\257\256LR\
1\257\256LL.5LI,0LI\257Conjunctive waw - Waw used to connect clauses \

Atualmente estou executando o Gnu ed versão 1.18 no Debian WSL no Windows. Se eu editar um arquivo com a seguinte codificação:

ASCII text, with CRLF, LF line terminators

ou

ASCII text, with CRLF,

então ed não une linhas corretamente com o j command. Em vez disso, exclui a primeira linha a ser unida.

Esse problema não ocorre se o arquivo for criado em ed, mas afeta arquivos que foram criados em outros programas e são editados em ed. O mesmo problema é encontrado no GNU ed 1.17.

Isso é um inseto? Como se contornaria esse problema?

Se eu criar um marcador edpara um endereço invocando kmais qualquer outra letra, posso retornar a esse endereço mais tarde invocando '+letter. Costumo fazer esses marcadores, especialmente ao navegar em um documento longo.

No entanto, se eu criar tal marcador e, em seguida, executar uma substituição global (como g/vim/s//ed/g) quando tento retornar ao endereço que marquei, ele desaparece e edme dá Invalid address. Isso é estranho porque é especialmente depois de invocar uma substituição global que se gostaria de retornar ao local onde estava anteriormente porque as substituições globais são redefinidas dotpara a última linha editada.

Estou faltando alguma coisa aqui?

Gostaria de saber se era possível digitar caracteres Unicode como um em_dash e aspas em ed. Estou concluindo um projeto que requer esses caracteres especiais no documento.

Qual seria a sintaxe para substituir apenas a segunda/terceira ocorrência de uma palavra/frase em ed?

He wanted to buy groceries from the shop, but preferred not having to go into the shop. >>
He wanted to buy groceries from the shop, but preferred not having to go into it. >>

No Unix ls -lnos dá uma longa lista de arquivos e diretórios. ls -ltalém disso , classifica os arquivos por hora, ou seja, a última alteração ou modificação. Isso deve ser diferenciado de, ls -luque fornece a listagem longa e o tempo de acesso e classifica os arquivos de az, não por último acesso. Eu esperaria ls -luclassificar os arquivos por tempo de acesso, mas para isso preciso: ls -lutque forneça a listagem em formato longo, imprima o tempo de acesso e classifique por tempo de acesso.

ERGO, -tdeve significar classificar por tempo, modificado ou tempo de acesso, enquanto que -usignifica apenas listar o tempo de acesso. Não significa listar e classificar por tempo de acesso. Sem nenhum argumento adicional, -tparece significar listar por hora modificada e classificar por hora modificada. O acima está correto. Se não, onde estou errando?