1var-1bs 2printf "%s=:%s:\n" VAR1BS 111\\111; printf "%s=:%s:\n" VAR1BSa 111\\aaa; printf "%s=:%s:\n" VAR1BSA 111\\aaa; printf "%s=:%s:\n" VAR1BSda 111\\\$\{a\}; printf "%s=:%s:\n" VAR1BSdA 111\\\$\{A\}; printf "%s=:%s:\n" VAR1BSc 111\#\ backslash\ escapes\ comment\ char,\ so\ this\ is\ part\ of\ the\ value; printf "%s=:%s:\n" VAR1BSsc 111\\\ ; 3VAR1BS=:111\111: 4VAR1BSa=:111\aaa: 5VAR1BSA=:111\aaa: 6VAR1BSda=:111\${a}: 7VAR1BSdA=:111\${A}: 8VAR1BSc=:111# backslash escapes comment char, so this is part of the value: 9VAR1BSsc=:111\ : 10var-2bs 11printf "%s=:%s:\n" VAR2BS 222\\\\222; printf "%s=:%s:\n" VAR2BSa 222\\\\aaa; printf "%s=:%s:\n" VAR2BSA 222\\\\aaa; printf "%s=:%s:\n" VAR2BSda 222\\\\\$\{a\}; printf "%s=:%s:\n" VAR2BSdA 222\\\\\$\{A\}; printf "%s=:%s:\n" VAR2BSc 222\\\\; printf "%s=:%s:\n" VAR2BSsc 222\\\\; 12VAR2BS=:222\\222: 13VAR2BSa=:222\\aaa: 14VAR2BSA=:222\\aaa: 15VAR2BSda=:222\\${a}: 16VAR2BSdA=:222\\${A}: 17VAR2BSc=:222\\: 18VAR2BSsc=:222\\: 19var-1bsnl 20printf "%s=:%s:\n" VAR1BSNL 111\ 111; printf "%s=:%s:\n" VAR1BSNLa 111\ aaa; printf "%s=:%s:\n" VAR1BSNLA 111\ aaa; printf "%s=:%s:\n" VAR1BSNLda 111\ \$\{a\}; printf "%s=:%s:\n" VAR1BSNLdA 111\ \$\{A\}; printf "%s=:%s:\n" VAR1BSNLc 111; printf "%s=:%s:\n" VAR1BSNLsc 111; 21VAR1BSNL=:111 111: 22VAR1BSNLa=:111 aaa: 23VAR1BSNLA=:111 aaa: 24VAR1BSNLda=:111 ${a}: 25VAR1BSNLdA=:111 ${A}: 26VAR1BSNLc=:111: 27VAR1BSNLsc=:111: 28var-2bsnl 29printf "%s=:%s:\n" VAR2BSNL 222\\\\; printf "%s=:%s:\n" VAR2BSNLa 222\\\\; printf "%s=:%s:\n" VAR2BSNLA 222\\\\; printf "%s=:%s:\n" VAR2BSNLda 222\\\\; printf "%s=:%s:\n" VAR2BSNLdA 222\\\\; printf "%s=:%s:\n" VAR2BSNLc 222\\\\; printf "%s=:%s:\n" VAR2BSNLsc 222\\\\; 30VAR2BSNL=:222\\: 31VAR2BSNLa=:222\\: 32VAR2BSNLA=:222\\: 33VAR2BSNLda=:222\\: 34VAR2BSNLdA=:222\\: 35VAR2BSNLc=:222\\: 36VAR2BSNLsc=:222\\: 37var-3bsnl 38printf "%s=:%s:\n" VAR3BSNL 333\\\\\ 333=; printf "%s=:%s:\n" VAR3BSNLa 333\\\\\ aaa=; printf "%s=:%s:\n" VAR3BSNLA 333\\\\\ aaa=; printf "%s=:%s:\n" VAR3BSNLda 333\\\\\ \$\{a\}=; printf "%s=:%s:\n" VAR3BSNLdA 333\\\\\ \$\{A\}=; printf "%s=:%s:\n" VAR3BSNLc 333\\\\; printf "%s=:%s:\n" VAR3BSNLsc 333\\\\; 39VAR3BSNL=:333\\ 333=: 40VAR3BSNLa=:333\\ aaa=: 41VAR3BSNLA=:333\\ aaa=: 42VAR3BSNLda=:333\\ ${a}=: 43VAR3BSNLdA=:333\\ ${A}=: 44VAR3BSNLc=:333\\: 45VAR3BSNLsc=:333\\: 46var-1bsnl-space 47printf "%s=:%s:\n" VAR1BSNL00 first\ line; printf "%s=:%s:\n" VAR1BSNL0 first\ line\ no\ space\ on\ second\ line; printf "%s=:%s:\n" VAR1BSNLs first\ line\ one\ space\ on\ second\ line; printf "%s=:%s:\n" VAR1BSNLss first\ line\ two\ spaces\ on\ second\ line; printf "%s=:%s:\n" VAR1BSNLt first\ line\ one\ tab\ on\ second\ line; printf "%s=:%s:\n" VAR1BSNLtt first\ line\ two\ tabs\ on\ second\ line; printf "%s=:%s:\n" VAR1BSNLxx first\ line\ many\ spaces\ and\ tabs\ \[\ \ \ \ \]\ on\ second\ line; 48VAR1BSNL00=:first line: 49VAR1BSNL0=:first line no space on second line: 50VAR1BSNLs=:first line one space on second line: 51VAR1BSNLss=:first line two spaces on second line: 52VAR1BSNLt=:first line one tab on second line: 53VAR1BSNLtt=:first line two tabs on second line: 54VAR1BSNLxx=:first line many spaces and tabs [ ] on second line: 55cmd-1bsnl 56echo :'first line\ 57#second line without space\ 58third line': 59:first line\ 60#second line without space\ 61third line: 62echo :'first line\ 63 second line spaces should be retained': 64:first line\ 65 second line spaces should be retained: 66echo :'first line\ 67second line tab should be elided': 68:first line\ 69second line tab should be elided: 70echo :'first line\ 71 only one tab should be elided, second tab remains' 72:first line\ 73 only one tab should be elided, second tab remains 74cmd-1bsnl-eof 75echo :'command ending with backslash-newline'; \ 76 77:command ending with backslash-newline 78cmd-2bsnl 79echo take one\\ 80take one\ 81echo take two\\ 82take two\ 83echo take three\\ 84take three\ 85cmd-3bsnl 86echo :'first line\\\ 87#second line without space\\\ 88third line': 89:first line\\\ 90#second line without space\\\ 91third line: 92echo :'first line\\\ 93 second line spaces should be retained': 94:first line\\\ 95 second line spaces should be retained: 96echo :'first line\\\ 97second line tab should be elided': 98:first line\\\ 99second line tab should be elided: 100echo :'first line\\\ 101 only one tab should be elided, second tab remains' 102:first line\\\ 103 only one tab should be elided, second tab remains 104exit status 0 105