Number of Syscalls
ID dash ash mksh bash-5 bash-4 zsh ysh osh Description
01 40 64 59 144 156 197 4575 4575 echo hi
02 97 122 131 231 254 277 4638 4638 date
03 42 66 59 145 157 192 4575 4575 date ;
04 98 123 132 269 292 284 4640 4640 trap 'echo mytrap' EXIT; date
05 98 123 132 233 256 281 4640 4640 date; echo hi
06 98 123 132 233 256 281 4640 4640 echo hi; date
07 139 166 189 292 313 345 4688 4688 date; date
08 139 166 189 292 313 346 4688 4688 { date; date; }
09 139 166 189 292 313 346 4688 4688 date; { date; }
10 149 175 198 310 331 376 4700 4700 . _tmp/sourced.sh
11 47 72 73 174 184 230 4589 4589 (echo hi)
12 97 122 133 239 262 283 4638 4638 (date)
13 97 122 133 247 270 289 4638 4638 ( ( date ) )
14 98 123 134 249 272 293 4640 4640 ( ( date ) ); echo hi
15 98 123 134 241 264 287 4640 4640 echo hi; (date)
16 98 123 134 241 264 287 4640 4640 echo hi; (date;)
17 48 73 74 175 185 234 4590 4590 echo hi; (echo hi;)
18 99 124 147 242 285 291 4641 4641 echo hi; (echo hi; date)
19 48 73 74 176 186 234 4591 4591 ( echo hi ); echo hi
20 105 128 139 234 257 280 4647 4647 date > /tmp/redir.txt
21 100 125 141 242 265 286 4647 4647 (date;) > /tmp/sentence.txt
22 164 187 231 321 355 366 4717 4717 date 2> /tmp/stderr.txt | wc -l
23 48 70 66 154 166 204 4584 4584 echo hi > /tmp/redir.txt
24 50 75 81 177 187 232 4598 4598 (echo hi;) > /tmp/sentence.txt
25 116 139 174 264 285 315 4670 4670 echo hi 2> /tmp/stderr.txt | wc -l
26 105 130 146 262 284 314 4654 4654 (date; echo hi)
27 106 131 154 250 292 296 4647 4647 echo $(date)
28 55 81 93 185 194 240 4598 4598 echo $(echo hi)
29 106 131 154 279 300 302 4647 4647 echo $( ( date ) )
30 114 140 169 282 303 331 4664 4664 echo $( ( date ); echo hi )
31 48 73 74 176 186 234 4591 4591 ( echo hi ); echo done
32 158 183 227 318 352 363 4710 4710 date | wc -l
33 158 183 226 318 352 363 4575 4710 ! date | wc -l
34 108 133 167 261 282 313 4661 4661 echo a | wc -l
35 108 133 167 261 282 356 4661 4661 command echo a | wc -l
36 158 183 226 318 380 363 4710 4710 command date | wc -l
37 158 183 227 318 380 363 4575 4710 ! command date | wc -l
38 158 183 227 326 360 370 4710 4710 ( date ) | wc -l
39 141 195 200 298 318 322 4680 4680 date | read x
40 109 134 168 262 283 319 4662 4662 { echo a; echo b; } | wc -l
41 110 135 169 264 285 323 4664 4664 { echo a; echo b; } | wc -l; echo done
42 160 185 241 350 383 377 4713 4713 { echo a; date; } | wc -l
43 109 134 168 262 283 320 4662 4662 ( echo a; echo b ) | wc -l
44 109 134 168 272 293 327 4662 4662 ( echo a; echo b ) | ( wc -l )
45 110 135 183 302 322 338 4663 4663 { echo prefix; ( echo a; echo b ); } | ( wc -l )
46 54 78 82 201 210 238 4590 4590 echo hi & wait
47 104 128 142 258 280 288 4639 4639 date & wait
48 117 139 178 287 307 330 4658 4658 echo hi | wc -l & wait
49 167 189 237 344 377 379 4707 4707 date | wc -l & wait
50 105 129 143 296 318 293 4641 4641 trap 'echo mytrap' EXIT; date & wait
51 169 190 239 398 431 384 4709 4709 trap 'echo mytrap' EXIT; date | wc -l & wait
52 112 136 153 326 346 323 4653 4653 { trap 'echo mytrap' EXIT; date; } & wait
TOTAL 5568 6881 8006 13491 14711 15805 241648 241918