1. Programming

Hi! I'm writing a C program which gets from the command line a shell command (such as "ls" ) and I should execute it. My Q is: how can I send a command to the shell? I know I have to use one of the above functions, but I don't know how to use them. Thanks eyal (1 Reply)

2. Filesystems, Disks and Memory

Hello! How I can increase or decrease predefined pipe buffer size? System FreeBSD 4.9 and RedHat Linux 9.0 Thanks! (1 Reply)

3. Programming

Hi, Is it possible to run a program from my C program using only the full pathname? for example if I wanna call: "ls", so I whould have to use: execl("/bin/ls", "ls", NULL); Is it possible to do this using only: "/bin/ls" thanks (1 Reply)

4. Programming

can anyone explain how to pass arguments of a program in execl function pls explain with a sample code. (2 Replies)

5. Shell Programming and Scripting

I want to make simultanous sh commands in an exec command for example I want to counts the lines in a file wc -l my file.txt | awk -F" " '{print $1}'` works fine in sh but I want to implement it in a c code the first part works like this execl("/usr/bin/wc", "wc", "-l", "myfile.txt",... (1 Reply)

6. Programming

Hi, we would appreciate if any one answer the below query. void main() { printf(“ I am in main\n”); execl(“/HOME/source/file2”,” /HOME/source/file2”,1,0); printf(“after execl\n”); } How to step the file2 source code in GDB. (2 Replies)

7. Programming

hello everybody how can i time the execution of execl() command inside my C code? for example, i wrote.. execl("md5sum","md5sum","myprog",NULL); i want to count the duration of the execl command! thanx in advance! (2 Replies)

8. Red Hat

how to use find command in execl function, I used: execl("/usr/bin/find","find","~","-name","filename.c",0); but it shows find: ~ no file and directory i need to get the path of the file from the home .:wall: (2 Replies)

9. Programming

when execl fails using the command lss, it doesnt go into the next line execl("/bin/sh", "/bin/sh", "-c", command, NULL); perror("execl failed"); exit(127); for some reason the child process just stops and also the parent process also stops so the line after the line that... (3 Replies)

10. UNIX for Beginners Questions & Answers

Hi, If I write in a c file : execlp("date","date",NULL); printf("A\n"); And then run through the terminal would "A" be printed ? I understood that execlp will exit the program after it finished so the next lines of code won`t be executed afterwards.. Is that true ? (1 Reply)