1 | ## 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 | #### command -v
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7 | myfunc() { echo x; }
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8 | command -v echo
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9 | echo $?
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10 |
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11 | command -v myfunc
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12 | echo $?
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13 |
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14 | command -v nonexistent # doesn't print anything
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15 | echo nonexistent=$?
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16 |
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17 | command -v '' # BUG FIX, shouldn't succeed
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18 | echo empty=$?
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19 |
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20 | command -v for
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21 | echo $?
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22 |
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23 | ## STDOUT:
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24 | echo
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25 | 0
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26 | myfunc
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27 | 0
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28 | nonexistent=1
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29 | empty=1
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30 | for
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31 | 0
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32 | ## OK dash STDOUT:
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33 | echo
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34 | 0
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35 | myfunc
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36 | 0
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37 | nonexistent=127
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38 | empty=127
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39 | for
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40 | 0
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41 | ## END
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42 |
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43 | #### command -v with multiple names
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44 | # ALL FOUR SHELLS behave differently here!
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45 | #
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46 | # bash chooses to swallow the error! We agree with zsh if ANY word lookup
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47 | # fails, then the whole thing fails.
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48 |
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49 | myfunc() { echo x; }
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50 | command -v echo myfunc ZZZ for
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51 | echo status=$?
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52 |
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53 | ## STDOUT:
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54 | echo
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55 | myfunc
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56 | for
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57 | status=1
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58 | ## BUG bash STDOUT:
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59 | echo
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60 | myfunc
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61 | for
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62 | status=0
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63 | ## BUG dash STDOUT:
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64 | echo
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65 | status=0
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66 | ## OK mksh STDOUT:
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67 | echo
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68 | myfunc
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69 | status=1
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70 | ## END
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71 |
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72 | #### command -v doesn't find non-executable file
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73 | # PATH resolution is different
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74 |
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75 | PATH="_tmp:$PATH"
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76 | touch _tmp/non-executable _tmp/executable
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77 | chmod +x _tmp/executable
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78 |
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79 | command -v _tmp/non-executable
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80 | echo status=$?
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81 |
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82 | command -v _tmp/executable
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83 | echo status=$?
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84 |
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85 | ## STDOUT:
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86 | status=1
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87 | _tmp/executable
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88 | status=0
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89 | ## END
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90 |
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91 | ## BUG dash STDOUT:
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92 | _tmp/non-executable
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93 | status=0
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94 | _tmp/executable
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95 | status=0
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96 | ## END
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97 |
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98 | #### command -V
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99 | myfunc() { echo x; }
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100 |
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101 | shopt -s expand_aliases
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102 | alias ll='ls -l'
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103 |
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104 | backtick=\`
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105 | command -V ll | sed "s/$backtick/'/g"
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106 | echo status=$?
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107 |
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108 | command -V echo
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109 | echo status=$?
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110 |
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111 | command -V myfunc
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112 | echo status=$?
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113 |
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114 | command -V nonexistent # doesn't print anything
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115 | echo status=$?
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116 |
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117 | command -V for
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118 | echo status=$?
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119 |
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120 | ## STDOUT:
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121 | ll is an alias for "ls -l"
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122 | status=0
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123 | echo is a shell builtin
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124 | status=0
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125 | myfunc is a shell function
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126 | status=0
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127 | status=1
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128 | for is a shell keyword
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129 | status=0
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130 | ## END
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131 |
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132 | ## OK zsh STDOUT:
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133 | ll is an alias for ls -l
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134 | status=0
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135 | echo is a shell builtin
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136 | status=0
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137 | myfunc is a shell function
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138 | status=0
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139 | nonexistent not found
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140 | status=1
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141 | for is a reserved word
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142 | status=0
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143 | ## END
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144 |
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145 | ## OK bash STDOUT:
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146 | ll is aliased to 'ls -l'
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147 | status=0
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148 | echo is a shell builtin
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149 | status=0
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150 | myfunc is a function
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151 | myfunc ()
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152 | {
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153 | echo x
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154 | }
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155 | status=0
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156 | status=1
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157 | for is a shell keyword
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158 | status=0
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159 | ## END
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160 |
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161 | ## OK mksh STDOUT:
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162 | ll is an alias for 'ls -l'
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163 | status=0
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164 | echo is a shell builtin
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165 | status=0
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166 | myfunc is a function
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167 | status=0
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168 | nonexistent not found
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169 | status=1
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170 | for is a reserved word
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171 | status=0
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172 | ## END
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173 |
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174 | ## OK dash STDOUT:
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175 | ll is an alias for ls -l
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176 | status=0
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177 | echo is a shell builtin
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178 | status=0
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179 | myfunc is a shell function
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180 | status=0
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181 | nonexistent: not found
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182 | status=127
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183 | for is a shell keyword
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184 | status=0
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185 | ## END
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186 |
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187 | #### command -V nonexistent
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188 | command -V nonexistent 2>err.txt
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189 | echo status=$?
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190 | fgrep -o 'nonexistent: not found' err.txt || true
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191 |
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192 | ## STDOUT:
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193 | status=1
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194 | nonexistent: not found
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195 | ## END
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196 |
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197 | ## OK zsh/mksh STDOUT:
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198 | nonexistent not found
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199 | status=1
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200 | ## END
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201 |
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202 | ## BUG dash STDOUT:
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203 | nonexistent: not found
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204 | status=127
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205 | ## END
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206 |
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207 |
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208 | #### command skips function lookup
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209 | seq() {
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210 | echo "$@"
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211 | }
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212 | command # no-op
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213 | seq 3
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214 | command seq 3
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215 | # subshell shouldn't fork another process (but we don't have a good way of
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216 | # testing it)
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217 | ( command seq 3 )
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218 | ## STDOUT:
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219 | 3
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220 | 1
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221 | 2
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222 | 3
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223 | 1
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224 | 2
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225 | 3
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226 | ## END
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227 |
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228 | #### command command seq 3
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229 | command command seq 3
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230 | ## STDOUT:
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231 | 1
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232 | 2
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233 | 3
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234 | ## END
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235 | ## N-I zsh stdout-json: ""
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236 | ## N-I zsh status: 127
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237 |
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238 | #### command command -v seq
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239 | seq() {
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240 | echo 3
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241 | }
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242 | command command -v seq
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243 | ## stdout: seq
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244 | ## N-I zsh stdout-json: ""
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245 | ## N-I zsh status: 127
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246 |
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247 | #### command -p (override existing program)
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248 | # Tests whether command -p overrides the path
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249 | # tr chosen because we need a simple non-builtin
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250 | mkdir -p $TMP/bin
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251 | echo "echo wrong" > $TMP/bin/tr
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252 | chmod +x $TMP/bin/tr
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253 | PATH="$TMP/bin:$PATH"
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254 | echo aaa | tr "a" "b"
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255 | echo aaa | command -p tr "a" "b"
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256 | rm $TMP/bin/tr
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257 | ## STDOUT:
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258 | wrong
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259 | bbb
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260 | ## END
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261 |
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262 | #### command -p (hide tool in custom path)
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263 | mkdir -p $TMP/bin
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264 | echo "echo hello" > $TMP/bin/hello
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265 | chmod +x $TMP/bin/hello
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266 | export PATH=$TMP/bin
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267 | command -p hello
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268 | ## status: 127
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269 |
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270 | #### command -p (find hidden tool in default path)
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271 | export PATH=''
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272 | command -p ls
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273 | ## status: 0
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274 |
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275 |
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276 | #### $(command type ls)
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277 | type() { echo FUNCTION; }
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278 | type
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279 | s=$(command type echo)
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280 | echo $s | grep builtin > /dev/null
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281 | echo status=$?
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282 | ## STDOUT:
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283 | FUNCTION
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284 | status=0
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285 | ## END
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286 | ## N-I zsh STDOUT:
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287 | FUNCTION
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288 | status=1
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289 | ## END
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290 | ## N-I mksh STDOUT:
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291 | status=1
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292 | ## END
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293 |
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294 | #### builtin
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295 | cd () { echo "hi"; }
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296 | cd
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297 | builtin cd / && pwd
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298 | unset -f cd
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299 | ## STDOUT:
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300 | hi
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301 | /
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302 | ## END
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303 | ## N-I dash STDOUT:
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304 | hi
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305 | ## END
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306 |
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307 | #### builtin ls not found
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308 | builtin ls
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309 | ## status: 1
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310 | ## N-I dash status: 127
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311 |
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312 | #### builtin no args
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313 | builtin
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314 | ## status: 0
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315 | ## N-I dash status: 127
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316 |
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317 | #### builtin command echo hi
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318 | builtin command echo hi
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319 | ## status: 0
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320 | ## stdout: hi
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321 | ## N-I dash status: 127
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322 | ## N-I dash stdout-json: ""
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