Hi Group ,
I m trying to execute commands on some other system using write command but inspite of executing the commands they r passed as simple messages.
- i m writing
>write user-id
! ls
o
ctrl-d
inspite of executing the command ls,other terminal shows ! ls.
Thnx in advance. (2 Replies)
I'm trying to populate a command line into a variable. It appears to be executing, instead. Here's an example:
mycmd=''
if ...; then
$mycmd='sudo '
fi
$mycmd=$mycmd 'sed -i prev s/aaa/bbb/' $myfile
res=`$mycmd`
(I'm also not sure of the best way to execute the command from the... (1 Reply)
Hi,
I'm trying to run the following command using sh -c
ie
sh -c "while read EachLine
do
rm -f $EachLine ;
done < file_list.lst;"
It doesn't seem to do anything.
When I run this at the command line, it does remove the files contained in the list so i know the command works
ie... (4 Replies)
Hi,
I have a script below for extracting xml from a file.
for i in *.txt
do
echo $i
awk '/<.*/ , /.*<\/.*>/' "$i" | tr -d '\n'
echo -ne '\n'
done
.
I read about using multi threading to speed up the script.
I do not know much about it but read it on this forum.
Is it a... (21 Replies)
I am running the export command within a view to use that value inside my build script. But while executing it it is saying "export command not found"
My code is as follows:
--------------------------
#!/bin/sh
user="test"
DIR="/bldtmp/"$user
VIEW="test.view1"
echo "TMPDIR before export... (4 Replies)
Hi,
I have a problem where I need to make this input:
nameRow1a,text1a,text2a,floatValue1a,FloatValue2a,...,floatValue140a
nameRow1b,text1b,text2b,floatValue1b,FloatValue2b,...,floatValue140b
look like this output:
nameRow1a,text1b,text2a,(floatValue1a - floatValue1b),(floatValue2a -... (4 Replies)
how to run a command, such as "ls -l core" from one lpar to check multi lpars if core file exist?
or what way can do a command on all lpars from one lpar?
Thanks (1 Reply)
Hello :)
new to bash not to programming.
I have an on-going need to change the owning group on sets of files and directories from the one they were created with or changed to on update to the one they need to have going forward.
find {target_root} -group wrong_group
gets me a newline... (4 Replies)
Hello i am having an issue with bash script and this is the code
now=$(cat hosts1.txt | awk '{print $2;}')
while read n ;do
ssh root@$now 'useradd test1; echo -e "test1\ntest1" | passwd test1 && echo "test1 ALL=(ALL:ALL) ALL" >> /etc/sudoers'
When i execute only part with cat, it... (8 Replies)
The following is a multi-line shell command example:
$cargo build
Compiling prawn v0.1.0 (/Users/ag/rust/prawn)
error: failed to resolve: could not find `setup_panix` in `human_panic`
--> src/main.rs:14:22
|
14 | human_panic::setup_panix!();
| ... (2 Replies)
Discussion started by: yogi
2 Replies
LEARN ABOUT ULTRIX
execvp
execl(3) Library Functions Manual execl(3)Name
execl, execv, execle, execlp, execvp, exect, environ - execute a file
Syntax
execl(name, arg0, arg1, ..., argn, (char *)0)
char *name, *arg0, *arg1, ..., *argn;
execv(name, argv)
char *name, *argv[];
execle(name, arg0, arg1, ..., argn, (char *)0, envp)
char *name, *arg0, *arg1, ..., *argn, *envp[];
execlp(file, arg0, arg1, ..., argn, (char *)0)
char *file, *arg0, *arg1, ..., *argn;
execvp(file,argv)
char *file, *argv[];
exect(name, argv, envp)
char *name, *argv[], *envp[];
extern char **environ;
Description
These routines provide various interfaces to the system call. Refer to for a description of their properties; only brief descriptions are
provided here.
In all their forms, these calls overlay the calling process with the named file, then transfer to the entry point of the core image of the
file. There can be no return from a successful exec. The calling core image is lost.
The name argument is a pointer to the name of the file to be executed. The pointers arg[0], arg[1] ... address null-terminated strings.
Conventionally arg[0] is the name of the file.
Two interfaces are available. is useful when a known file with known arguments is being called; the arguments to are the character strings
constituting the file and the arguments; the first argument is conventionally the same as the file name (or its last component). A 0 argu-
ment must end the argument list.
The version is useful when the number of arguments is unknown in advance. The arguments to are the name of the file to be executed and a
vector of strings containing the arguments. The last argument string must be followed by a 0 pointer.
The version is used when the executed file is to be manipulated with The program is forced to single step a single instruction giving the
parent an opportunity to manipulate its state. On VAX-11 machines, this is done by setting the trace bit in the process status longword.
When a C program is executed, it is called as follows:
main(argc, argv, envp)
int argc;
char **argv, **envp;
where argc is the argument count and argv is an array of character pointers to the arguments themselves. As indicated, argc is convention-
ally at least one and the first member of the array points to a string containing the name of the file.
The argv is directly usable in another because argv[argc] is 0.
The envp is a pointer to an array of strings that constitute the environment of the process. Each string consists of a name, an "=", and a
null-terminated value. The array of pointers is terminated by a null pointer. The shell passes an environment entry for each global shell
variable defined when the program is called. See for some conventionally used names. The C run-time start-off routine places a copy of
envp in the global cell which is used by and to pass the environment to any subprograms executed by the current program.
The and routines are called with the same arguments as and but duplicate the shell's actions in searching for an executable file in a list
of directories. The directory list is obtained from the environment.
Restrictions
If is called to execute a file that turns out to be a shell command file, and if it is impossible to execute the shell, the values of
argv[0] and argv[-1] will be modified before return.
Diagnostics
If the file cannot be found, if it is not executable, if it does not start with a valid magic number if maximum memory is exceeded, or if
the arguments require too much space, a return constitutes the diagnostic; the return value is -1. For further information, see Even for
the super-user, at least one of the execute-permission bits must be set for a file to be executed.
Files
/bin/sh Shell, invoked if command file found by execlp or execvp
See Alsocsh(1), execve(2), fork(2), environ(7)
RISC execl(3)