Sponsored Content
Top Forums UNIX for Dummies Questions & Answers How to use ${?} and system() function??? Post 302203550 by fpmurphy on Monday 9th of June 2008 06:14:44 AM
Old 06-09-2008
Quote:
Could anyone let me know the syntax of system() function and '${?}' commands??
man system
 

10 More Discussions You Might Find Interesting

1. Programming

system() function call...

Hi, Though I should check this myself.. but I don't have a cc compiler at this time.. :( When I compile a c program containing say system(myshell.sh).. do the executable require that the actual script myshell.sh to be present whenever it executes? I guess it needs.. otherwise I can just... (1 Reply)
Discussion started by: Vishnu
1 Replies

2. Programming

system function in c

Hai Friends I have used the function system() to execute a command. My requirement is that i have to list the files in a directory applying some wildcard paterns. For example if i want to list *.c files i go with the function system("ls *.c"); and the output gets printed on the monitor.... (1 Reply)
Discussion started by: collins
1 Replies

3. Solaris

System() and <stdlib.h> function , Pleeeeeeez Help !

Hi, guys ,, I want to know the implementation of System() function in C Unix, and its prototype definition: int system(const char * string) in the header file <stdlib.h> ??! please help me ! because that is part of my project !! (0 Replies)
Discussion started by: someone33
0 Replies

4. UNIX for Dummies Questions & Answers

System() function in <stdlib.h>

Hi, guys ,, I want to know the implementation of System() function in C Unix, and its prototype definition: int system(const char * string) in the header file <stdlib.h> ??! please help me ! because that is part of my project !! (0 Replies)
Discussion started by: someone33
0 Replies

5. Programming

alternatives of exec() system function

Hi , Can anybody name any System Function in C/C++ for Sun-Solaris (unix) platform which can serve the alternative of execl() system function. Actually I am calling a fork-execl() pair and then making an interprocess communication between these two(parent-child process). But the problem is... (3 Replies)
Discussion started by: Raj Kumar Arora
3 Replies

6. Programming

Question about the system() function in C

Hello all ! Could someone throw some light on whether there's a limit to the number of characters contained in the command string that is passed to the system() call in C. Is it OS dependent? If yes, what are the limits for each? Thanks. (4 Replies)
Discussion started by: vsanjit
4 Replies

7. Shell Programming and Scripting

How to use system function in awk

Could any one tell me how to use the system function in awk? I want to use it to print the system date. I have been trying like this : yes |head -1|awk '{ system("date")}' When I execute the above it always returns back to the prompt. Your help would be much appreciated. regards,... (3 Replies)
Discussion started by: srikanth_ksv
3 Replies

8. UNIX for Dummies Questions & Answers

Using system function in C

Hi Guys , I want to use system function in C to do the following work. cp <file1> <file2> and then ><file1> e,g cp \var\log\cpm_cpmd_1.log.1 \var\log\cpm_cpmd_1.log.2 and then >\var\log\cpm_cpmd_1.log.1 1. g_config_info.cpmm_config.cpm_log_path=\var\log\ 2. ... (3 Replies)
Discussion started by: meet123321
3 Replies

9. Shell Programming and Scripting

Help using SYSTEM function in NAWK

I am scanning a file (line by line) for format errors. A line could have multiple errors. Each field in the line is evaluated for errors and sent, along w/ any error messages, to a temporary file. Finally, if any errors were detected, this temporary file is then appended to the errorFile. The... (4 Replies)
Discussion started by: aschera
4 Replies

10. Shell Programming and Scripting

System function in awk

Hello Friends, I have written a script like below, I aimed to move some CDR files (call data record) whose the last field is "1" (NF=1 ) from a spesific directory to a new directory Field Seperator is pipe. If the directory does not exitst i should create it. I will give the script two... (5 Replies)
Discussion started by: EAGL€
5 Replies
page_util_quote(n)					      Parser generator tools						page_util_quote(n)

__________________________________________________________________________________________________________________________________________________

NAME
page_util_quote - page character quoting utilities SYNOPSIS
package require page::util::quote ?0.1? package require snit ::page::util::quote::unquote char ::page::util::quote::quote'tcl char ::page::util::quote::quote'tclstr char ::page::util::quote::quote'tclcom char _________________________________________________________________ DESCRIPTION
This package provides a few utility commands to convert characters into various forms. API
::page::util::quote::unquote char A character, as stored in an abstract syntax tree by a PEG processor (See the packages grammar::peg::interpreter, grammar::me, and their relations), i.e. in some quoted form, is converted into the equivalent Tcl character. The character is returned as the result of the command. ::page::util::quote::quote'tcl char This command takes a Tcl character (internal representation) and converts it into a string which is accepted by the Tcl parser, will regenerate the character in question and is 7bit ASCII. The string is returned as the result of this command. ::page::util::quote::quote'tclstr char This command takes a Tcl character (internal representation) and converts it into a string which is accepted by the Tcl parser and will generate a human readable representation of the character in question. The string is returned as the result of this command. The string does not use any unprintable characters. It may use backslash-quoting. High UTF characters are quoted to avoid problems with the still prevalent ascii terminals. It is assumed that the string will be used in a double-quoted environment. ::page::util::quote::quote'tclcom char This command takes a Tcl character (internal representation) and converts it into a string which is accepted by the Tcl parser when used within a Tcl comment. The string is returned as the result of this command. BUGS, IDEAS, FEEDBACK This document, will undoubtedly contain bugs and other problems. Please report such in the category page of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have. KEYWORDS
page, parser generator, quoting, text processing COPYRIGHT
Copyright (c) 2007 Andreas Kupries <andreas_kupries@users.sourceforge.net> page 1.0 page_util_quote(n)
All times are GMT -4. The time now is 05:22 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy