How did Bourne shell solve missing teletype keys problem?
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I've learned recently from DigitalRoss's answer that certain teletypes such as ASR-33 lacked certain keys; for instance |. For that purpose in C there exist trigraph operators that can be substituted for | and some others.
Now, this begs the question what was done in Bourne shell back in the day to solve this problem ?
history bourne-shell
asked Dec 29 '18 at 9:28
Sergiy KolodyazhnyySergiy Kolodyazhnyy
8,53312254
add a comment |
I've learned recently from DigitalRoss's answer that certain teletypes such as ASR-33 lacked certain keys; for instance |. For that purpose in C there exist trigraph operators that can be substituted for | and some others.
Now, this begs the question what was done in Bourne shell back in the day to solve this problem ?
history bourne-shell
asked Dec 29 '18 at 9:28
Sergiy KolodyazhnyySergiy Kolodyazhnyy
8,53312254
3
Possible duplicate of Use of ^ as a shell metacharacter
– roaima
Dec 29 '18 at 9:39
1
Trigraphs in C were not introduced because of the Teletype Model 33, they came much later. The reason for trigraphs were the ISO-646 character set, which allowed certain characters liketo be replaced by national characters likeäöå.
– Johan Myréen
Dec 29 '18 at 12:22
The proposed duplicate does not answer the question of how one entered these characters (more than just|) when that sort of teletype was a Unix terminal. Unfortunately this question is written as if the shell were all that one interacted with on a terminal.
– JdeBP
Dec 29 '18 at 17:35
add a comment |
I've learned recently from DigitalRoss's answer that certain teletypes such as ASR-33 lacked certain keys; for instance |. For that purpose in C there exist trigraph operators that can be substituted for | and some others.
Now, this begs the question what was done in Bourne shell back in the day to solve this problem ?
history bourne-shell
asked Dec 29 '18 at 9:28
Sergiy KolodyazhnyySergiy Kolodyazhnyy
8,53312254
I've learned recently from DigitalRoss's answer that certain teletypes such as ASR-33 lacked certain keys; for instance |. For that purpose in C there exist trigraph operators that can be substituted for | and some others.
Now, this begs the question what was done in Bourne shell back in the day to solve this problem ?
history bourne-shell
history bourne-shell
asked Dec 29 '18 at 9:28
Sergiy KolodyazhnyySergiy Kolodyazhnyy
8,53312254
asked Dec 29 '18 at 9:28
Sergiy KolodyazhnyySergiy Kolodyazhnyy
8,53312254
asked Dec 29 '18 at 9:28
Sergiy KolodyazhnyySergiy Kolodyazhnyy
8,53312254
asked Dec 29 '18 at 9:28
Sergiy KolodyazhnyySergiy Kolodyazhnyy
8,53312254
asked Dec 29 '18 at 9:28
Sergiy KolodyazhnyySergiy Kolodyazhnyy
8,53312254
8,53312254
3
Possible duplicate of Use of ^ as a shell metacharacter
– roaima
Dec 29 '18 at 9:39
1
Trigraphs in C were not introduced because of the Teletype Model 33, they came much later. The reason for trigraphs were the ISO-646 character set, which allowed certain characters liketo be replaced by national characters likeäöå.
– Johan Myréen
Dec 29 '18 at 12:22
The proposed duplicate does not answer the question of how one entered these characters (more than just|) when that sort of teletype was a Unix terminal. Unfortunately this question is written as if the shell were all that one interacted with on a terminal.
– JdeBP
Dec 29 '18 at 17:35
add a comment |
3
Possible duplicate of Use of ^ as a shell metacharacter
– roaima
Dec 29 '18 at 9:39
1
Trigraphs in C were not introduced because of the Teletype Model 33, they came much later. The reason for trigraphs were the ISO-646 character set, which allowed certain characters liketo be replaced by national characters likeäöå.
– Johan Myréen
Dec 29 '18 at 12:22
The proposed duplicate does not answer the question of how one entered these characters (more than just|) when that sort of teletype was a Unix terminal. Unfortunately this question is written as if the shell were all that one interacted with on a terminal.
– JdeBP
Dec 29 '18 at 17:35
3
3
Possible duplicate of Use of ^ as a shell metacharacter
– roaima
Dec 29 '18 at 9:39
Possible duplicate of Use of ^ as a shell metacharacter
– roaima
Dec 29 '18 at 9:39
1
1
Trigraphs in C were not introduced because of the Teletype Model 33, they came much later. The reason for trigraphs were the ISO-646 character set, which allowed certain characters like
äöå.– Johan Myréen
Dec 29 '18 at 12:22
Trigraphs in C were not introduced because of the Teletype Model 33, they came much later. The reason for trigraphs were the ISO-646 character set, which allowed certain characters like
äöå.– Johan Myréen
Dec 29 '18 at 12:22
The proposed duplicate does not answer the question of how one entered these characters (more than just
|) when that sort of teletype was a Unix terminal. Unfortunately this question is written as if the shell were all that one interacted with on a terminal.– JdeBP
Dec 29 '18 at 17:35
The proposed duplicate does not answer the question of how one entered these characters (more than just
|) when that sort of teletype was a Unix terminal. Unfortunately this question is written as if the shell were all that one interacted with on a terminal.– JdeBP
Dec 29 '18 at 17:35
add a comment |
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3
Possible duplicate of Use of ^ as a shell metacharacter
– roaima
Dec 29 '18 at 9:39
1
Trigraphs in C were not introduced because of the Teletype Model 33, they came much later. The reason for trigraphs were the ISO-646 character set, which allowed certain characters like
to be replaced by national characters likeäöå.– Johan Myréen
Dec 29 '18 at 12:22
The proposed duplicate does not answer the question of how one entered these characters (more than just
|) when that sort of teletype was a Unix terminal. Unfortunately this question is written as if the shell were all that one interacted with on a terminal.– JdeBP
Dec 29 '18 at 17:35