Intel XENIX 286 Programmers Guide (86) - Tenox.tc
Intel XENIX 286 Programmers Guide (86) - Tenox.tc Intel XENIX 286 Programmers Guide (86) - Tenox.tc
XENIX Programming Programming Commands csh (continued) Signal Handling The shell normally ignores quit signals. The interrupt and quit signals are ignored for an invoked command if the command is followed by &; otherwise, the signals have the values the shell inherited from its parent. The shell's handling of interrupts can be controlled by onintr. Login shells catch the terminate signal; otherwise, this signal is passed on to children from the state in the shell's parent. In no case are interrupts allowed when a login shell is reading the .logout file. Files -/.cshrc -/.login -/.logout /bin/sh /tmp/sh* /dev/null I etc/passwd Limitations Read by each shell at the beginning of execution Read by login shell after .cshrc at login Read by login shell at logout Shell for scripts not starting with a # Temporary file for
Programming Commands XENIX Programming csh (continued) Credit This utility was developed at the University of California at Berkeley and is used with permission. Notes Built-in control structure commands like foreach and while cannot be used with I, &, or ;. Commands within loops, prompted for by ? , are not placed in the history list. It is not possible to use colon (:) modifiers on the output of command substitutions. csh attempts to import and export the PATH variable for use with regular shell scripts. This works only in simple cases, where PATH contains no command characters. This version of csh does not support or use the process control features of the 4th Berkeley Distribution. B-56
- Page 270 and 271: XENIX Programming Programming Comma
- Page 272 and 273: XENIX Programming Programming Comma
- Page 274 and 275: XENIX Programming Programming Comma
- Page 276 and 277: XENIX Programming Programming Comma
- Page 278 and 279: XENIX Programming Programming Comma
- Page 280 and 281: XENIX Programming Programming Comma
- Page 282 and 283: XENIX Programming Programming Comma
- Page 284 and 285: XENIX Programming as (continued) Fi
- Page 286 and 287: XENIX Programming Programming Comma
- Page 288 and 289: XENIX Programming Programming Comma
- Page 290 and 291: XENIX Programming Programm ing Comm
- Page 292 and 293: XENIX Programming Programming Comma
- Page 294 and 295: XENIX Programming Programming Comma
- Page 296 and 297: XENIX Programming Programm ing Comm
- Page 298 and 299: XENIX Programming Programming Comma
- Page 300 and 301: XENIX Programming Programming Comma
- Page 302 and 303: XENIX Programming Programming Comma
- Page 304 and 305: XENIX Programming Programming Comma
- Page 306 and 307: XENIX Programming Programming Comma
- Page 308 and 309: XENIX Programming Programming Comma
- Page 310 and 311: XENIX Programming Programming Comma
- Page 312 and 313: XENIX Programming Programming Comma
- Page 314 and 315: XENIX Programm ing Programming Comm
- Page 316 and 317: XENIX Programming Programming Comma
- Page 318 and 319: XENIX Programming Programming Comma
- Page 322 and 323: XENIX Programming Programming Comma
- Page 324 and 325: XENIX Programming Programming Comma
- Page 326 and 327: XENIX Programming Programming Comma
- Page 328 and 329: XENIX Programming Programming Comma
- Page 330 and 331: XENIX Programming Programming Comma
- Page 332 and 333: XENIX Programming Programming Comma
- Page 334 and 335: XENIX Programming Programming Comma
- Page 336 and 337: XENIX Programming Programming Comma
- Page 338 and 339: XENIX Programming Programming Comma
- Page 340 and 341: XENIX Programming Programming Comma
- Page 342 and 343: XENIX Programming Programming Comma
- Page 344 and 345: XENIX Programming lex (continued) E
- Page 346 and 347: XENIX Programming Programming Comma
- Page 348 and 349: XENIX Programming Programming Comma
- Page 350 and 351: XENIX Programming Programming Comma
- Page 352 and 353: XENIX Programming Programming Comma
- Page 354 and 355: XENIX Programming Programming Comma
- Page 356 and 357: XENIX Programming Programming Comma
- Page 358 and 359: XENIX Programming Programming Comma
- Page 360 and 361: XENIX Programm ing Programming Comm
- Page 362 and 363: XENIX Programming Programming Comma
- Page 364 and 365: XENIX Programming prs (continued) :
- Page 366 and 367: XENIX Programming Programming Comma
- Page 368 and 369: XENIX Programming Programm ing Comm
Programming Commands <strong>XENIX</strong> Programming<br />
csh (continued)<br />
Credit<br />
This utility was developed at the University of California at Berkeley and is used with<br />
permission.<br />
Notes<br />
Built-in control structure commands like foreach and while cannot be used with I, &,<br />
or ;.<br />
Commands within loops, prompted for by ? , are not placed in the history list.<br />
It is not possible to use colon (:) modifiers on the output of command substitutions.<br />
csh attempts to import and export the PATH variable for use with regular shell scripts.<br />
This works only in simple cases, where PATH contains no command characters.<br />
This version of csh does not support or use the process control features of the 4th<br />
Berkeley Distribution.<br />
B-56
Change language