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## oils_failures_allowed: 0
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2 |
## compare_shells: dash bash mksh zsh
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3 |
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4 |
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5 |
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6 |
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# bash declare -p will print binary data, which makes this invalid UTF-8!
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8 |
foo=$(/bin/echo -e 'a\nb\xffc'\'d)
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10 |
# let's test the easier \x01, which doesn't give bash problems
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foo=$(/bin/echo -e 'a\nb\x01c'\'d)
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# dash:
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# only supports 'set'; prints it on multiple lines with binary data
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# switches to "'" for single quotes, not \'
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# zsh:
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# print binary data all the time, except for printf %q
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# does print $'' strings
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# mksh:
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# prints binary data for @Q
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# prints $'' strings
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# All are very inconsistent.
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case $SH in dash|mksh|zsh) return ;; esac
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set | grep -A1 foo
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29 |
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# Will print multi-line and binary data literally!
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#declare -p foo
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printf 'pf %q\n' "$foo"
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echo '@Q ' ${foo@Q}
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## STDOUT:
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foo=$'a\nb\u0001c\'d'
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pf $'a\nb\u0001c\'d'
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@Q $'a\nb\u0001c\'d'
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## END
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## OK bash STDOUT:
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foo=$'a\nb\001c\'d'
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pf $'a\nb\001c\'d'
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@Q $'a\nb\001c\'d'
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## END
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## OK dash/mksh/zsh STDOUT:
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## END
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51 |
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# There are variations on whether quotes are printed
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case $SH in dash|zsh) return ;; esac
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foo=spam
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set | grep -A1 foo
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# Will print multi-line and binary data literally!
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typeset -p foo
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printf 'pf %q\n' "$foo"
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echo '@Q ' ${foo@Q}
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## STDOUT:
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foo=spam
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declare -- foo=spam
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pf spam
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@Q spam
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## END
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## OK bash STDOUT:
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foo=spam
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declare -- foo="spam"
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pf spam
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@Q 'spam'
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## END
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## OK mksh STDOUT:
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foo=spam
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typeset foo=spam
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pf spam
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@Q spam
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## END
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## N-I dash/zsh STDOUT:
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## END
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myfunc() { echo x; }
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command -v echo
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echo $?
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command -v myfunc
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echo $?
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command -v nonexistent # doesn't print anything
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echo $?
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command -v for
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echo $?
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## STDOUT:
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echo
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0
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myfunc
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0
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111 |
1
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for
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0
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## OK dash STDOUT:
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echo
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0
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myfunc
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0
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127
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for
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0
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## END
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# ALL FOUR SHELLS behave differently here!
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#
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# bash chooses to swallow the error! We agree with zsh if ANY word lookup
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# fails, then the whole thing fails.
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myfunc() { echo x; }
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command -v echo myfunc ZZZ for
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echo status=$?
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## STDOUT:
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echo
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myfunc
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for
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status=1
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## BUG bash STDOUT:
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echo
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myfunc
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for
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status=0
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## BUG dash STDOUT:
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echo
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status=0
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## OK mksh STDOUT:
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echo
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myfunc
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status=1
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## END
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# PATH resolution is different
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PATH="_tmp:$PATH"
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touch _tmp/non-executable _tmp/executable
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chmod +x _tmp/executable
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command -v _tmp/non-executable
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echo status=$?
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command -v _tmp/executable
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echo status=$?
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## STDOUT:
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status=1
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_tmp/executable
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status=0
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## END
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## BUG dash STDOUT:
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_tmp/non-executable
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status=0
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_tmp/executable
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status=0
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## END
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myfunc() { echo x; }
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shopt -s expand_aliases
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alias ll='ls -l'
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backtick=\`
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command -V ll | sed "s/$backtick/'/g"
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echo status=$?
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command -V echo
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echo status=$?
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command -V myfunc
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echo status=$?
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command -V nonexistent # doesn't print anything
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echo status=$?
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command -V for
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echo status=$?
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## STDOUT:
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ll is an alias for "ls -l"
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status=0
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echo is a shell builtin
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status=0
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myfunc is a shell function
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status=0
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status=1
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for is a shell keyword
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status=0
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## END
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## OK zsh STDOUT:
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ll is an alias for ls -l
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status=0
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echo is a shell builtin
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status=0
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myfunc is a shell function
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status=0
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nonexistent not found
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status=1
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for is a reserved word
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status=0
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## END
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## OK bash STDOUT:
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ll is aliased to 'ls -l'
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status=0
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echo is a shell builtin
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status=0
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myfunc is a function
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myfunc ()
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{
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echo x
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}
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status=0
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status=1
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for is a shell keyword
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status=0
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## END
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## OK mksh STDOUT:
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ll is an alias for 'ls -l'
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status=0
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echo is a shell builtin
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246 |
status=0
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myfunc is a function
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248 |
status=0
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249 |
nonexistent not found
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status=1
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for is a reserved word
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status=0
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## END
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254 |
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## OK dash STDOUT:
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ll is an alias for ls -l
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257 |
status=0
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echo is a shell builtin
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259 |
status=0
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myfunc is a shell function
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status=0
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nonexistent: not found
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status=127
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for is a shell keyword
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status=0
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## END
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command -V nonexistent 2>err.txt
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echo status=$?
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fgrep -o 'nonexistent: not found' err.txt || true
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272 |
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273 |
## STDOUT:
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274 |
status=1
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275 |
nonexistent: not found
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## END
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277 |
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## OK zsh/mksh STDOUT:
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279 |
nonexistent not found
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280 |
status=1
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281 |
## END
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282 |
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## BUG dash STDOUT:
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284 |
nonexistent: not found
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285 |
status=127
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## END
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287 |
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seq() {
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echo "$@"
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}
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293 |
command # no-op
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seq 3
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295 |
command seq 3
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296 |
# subshell shouldn't fork another process (but we don't have a good way of
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297 |
# testing it)
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298 |
( command seq 3 )
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299 |
## STDOUT:
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300 |
3
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301 |
1
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302 |
2
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3
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304 |
1
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305 |
2
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306 |
3
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307 |
## END
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308 |
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309 |
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310 |
command command seq 3
|
311 |
## STDOUT:
|
312 |
1
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313 |
2
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314 |
3
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315 |
## END
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316 |
## N-I zsh stdout-json: ""
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317 |
## N-I zsh status: 127
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318 |
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319 |
|
320 |
seq() {
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321 |
echo 3
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}
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323 |
command command -v seq
|
324 |
## stdout: seq
|
325 |
## N-I zsh stdout-json: ""
|
326 |
## N-I zsh status: 127
|
327 |
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328 |
|
329 |
history
|
330 |
echo status=$?
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331 |
history +5 # hm bash considers this valid
|
332 |
echo status=$?
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333 |
history -5 # invalid flag
|
334 |
echo status=$?
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335 |
history f
|
336 |
echo status=$?
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337 |
history too many args
|
338 |
echo status=$?
|
339 |
## status: 0
|
340 |
## STDOUT:
|
341 |
status=0
|
342 |
status=0
|
343 |
status=2
|
344 |
status=2
|
345 |
status=2
|
346 |
## END
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347 |
## OK bash STDOUT:
|
348 |
status=0
|
349 |
status=0
|
350 |
status=2
|
351 |
status=1
|
352 |
status=1
|
353 |
## END
|
354 |
## BUG zsh/mksh STDOUT:
|
355 |
status=1
|
356 |
status=1
|
357 |
status=1
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358 |
status=1
|
359 |
status=1
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360 |
## END
|
361 |
## N-I dash STDOUT:
|
362 |
status=127
|
363 |
status=127
|
364 |
status=127
|
365 |
status=127
|
366 |
status=127
|
367 |
## END
|
368 |
|
369 |
|
370 |
# Tests whether command -p overrides the path
|
371 |
# tr chosen because we need a simple non-builtin
|
372 |
mkdir -p $TMP/bin
|
373 |
echo "echo wrong" > $TMP/bin/tr
|
374 |
chmod +x $TMP/bin/tr
|
375 |
PATH="$TMP/bin:$PATH"
|
376 |
echo aaa | tr "a" "b"
|
377 |
echo aaa | command -p tr "a" "b"
|
378 |
rm $TMP/bin/tr
|
379 |
## STDOUT:
|
380 |
wrong
|
381 |
bbb
|
382 |
## END
|
383 |
|
384 |
|
385 |
mkdir -p $TMP/bin
|
386 |
echo "echo hello" > $TMP/bin/hello
|
387 |
chmod +x $TMP/bin/hello
|
388 |
export PATH=$TMP/bin
|
389 |
command -p hello
|
390 |
## status: 127
|
391 |
|
392 |
|
393 |
export PATH=''
|
394 |
command -p ls
|
395 |
## status: 0
|
396 |
|
397 |
|
398 |
|
399 |
type() { echo FUNCTION; }
|
400 |
type
|
401 |
s=$(command type echo)
|
402 |
echo $s | grep builtin > /dev/null
|
403 |
echo status=$?
|
404 |
## STDOUT:
|
405 |
FUNCTION
|
406 |
status=0
|
407 |
## END
|
408 |
## N-I zsh STDOUT:
|
409 |
FUNCTION
|
410 |
status=1
|
411 |
## END
|
412 |
## N-I mksh STDOUT:
|
413 |
status=1
|
414 |
## END
|
415 |
|
416 |
|
417 |
cd () { echo "hi"; }
|
418 |
cd
|
419 |
builtin cd / && pwd
|
420 |
unset -f cd
|
421 |
## STDOUT:
|
422 |
hi
|
423 |
/
|
424 |
## END
|
425 |
## N-I dash STDOUT:
|
426 |
hi
|
427 |
## END
|
428 |
|
429 |
|
430 |
builtin ls
|
431 |
## status: 1
|
432 |
## N-I dash status: 127
|
433 |
|
434 |
|
435 |
builtin
|
436 |
## status: 0
|
437 |
## N-I dash status: 127
|
438 |
|
439 |
|
440 |
builtin command echo hi
|
441 |
## status: 0
|
442 |
## stdout: hi
|
443 |
## N-I dash status: 127
|
444 |
## N-I dash stdout-json: ""
|