10-21-2013
Option A sources the command, executing it in the current shell.
Option B executes the command in a subshell.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
hi,
i am try to run the following script - i just can not execute it.
*****************************************************
#!/bin/sh
echo "system monitor"
echo "
1) system paging
2) system file inf.
3) system disk inf.
"
echo "select an option"
read choice
case $... (2 Replies)
Discussion started by: neer45
2 Replies
2. UNIX for Dummies Questions & Answers
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)
Discussion started by: Aashish
2 Replies
3. Shell Programming and Scripting
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)
Discussion started by: littlejon
1 Replies
4. Shell Programming and Scripting
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/"$user
VIEW="test.view1"
echo "TMPDIR before export... (4 Replies)
Discussion started by: dchoudhury
4 Replies
5. AIX
Folks,
Asking a silly question - is there a way to know the status(Power Off/Running) of a managed node from CLI of HMC, alike the way we see it for the LPARs running on the node from 'vtmenu'?
Most of us use the UI to see the status of the LPARs/Managed node - but just inquisitive to know if... (4 Replies)
Discussion started by: thisissouvik
4 Replies
6. Shell Programming and Scripting
Hello :)
new to bash not to programming.
I have an on-going need to change the owning group on sets of files and directories from the one they were created with or changed to on update to the one they need to have going forward.
find {target_root} -group wrong_group
gets me a newline... (4 Replies)
Discussion started by: naftali
4 Replies
7. UNIX for Dummies Questions & Answers
I already know about the docx2txt program, and it's extremely helpful. ssconvert is also really helpful, but unlike docx2txt, it works both ways. How does one convert a .txt file to .docx via CLI, or is it even possible??
This:
docx2txt example.docx
results in making a .txt file out of... (2 Replies)
Discussion started by: Huitzilopochtli
2 Replies
8. Shell Programming and Scripting
I am writing a script to login to to a mongo DB node and get the status of that machine. The usual work flow is :
# mongo admin -u root -p root
MongoDB shell version: 3.0.11
connecting to: admin
rs0:SECONDARY>
Then in the new prompt I can run a command to check status :
... (0 Replies)
Discussion started by: Junaid Subhani
0 Replies
9. Shell Programming and Scripting
Hello i am having an issue with bash script and this is the code
now=$(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)
Discussion started by: tomislav91
8 Replies
10. Programming
In my further exploration of Arduino, today I decided to install the arduino-cli on my mac today.
https://github.com/arduino/arduino-cli
I followed the instructions for macOS but when I got to this part:
arduino-cli board list
I got the dreaded "Unknown" Fully Qualified Board Name... (1 Reply)
Discussion started by: Neo
1 Replies
LINUX(4) BSD Kernel Interfaces Manual LINUX(4)
NAME
linux -- Linux ABI support
SYNOPSIS
To compile support for this ABI into an i386 kernel place the following line in your kernel configuration file:
options COMPAT_LINUX
for an amd64 kernel use:
options COMPAT_LINUX32
Alternatively, to load the ABI as a module at boot time, place the following line in loader.conf(5):
linux_load="YES"
DESCRIPTION
The linux module provides limited Linux ABI (application binary interface) compatibility for userland applications. The module provides the
following significant facilities:
o An image activator for correctly branded elf(5) executable images
o Special signal handling for activated images
o Linux to native system call translation
It is important to note that the Linux ABI support it not provided through an emulator. Rather, a true (albeit limited) ABI implementation
is provided.
The following sysctl(8) tunable variables are available:
compat.linux.osname Linux kernel operating system name.
compat.linux.osrelease Linux kernel operating system release. Changing this to something else is discouraged on non-development systems,
because it may change the way Linux programs work. Recent versions of GNU libc are known to use different syscalls
depending on the value of this sysctl.
compat.linux.oss_version Linux Open Sound System version.
The linux module can be linked into the kernel statically with the COMPAT_LINUX kernel configuration option or loaded as required. The fol-
lowing command will load the module if it is neither linked into the kernel nor already loaded as a module:
if ! kldstat -v | grep -E 'linux(aout|elf)' > /dev/null; then
kldload linux > /dev/null 2>&1
fi
Note that dynamically linked Linux executables will require a suitable environment in /compat/linux. Specifically, the Linux run-time
linker's hints files should be correctly initialized. For this reason, it is common to execute the following commands to prepare the system
to correctly run Linux executables:
if [ -x /compat/linux/sbin/ldconfig ]; then
/compat/linux/sbin/ldconfig -r /compat/linux
fi
For information on loading the linux kernel loadable module automatically on system startup, see rc.conf(5). This information applies
regardless of whether the linux module is statically linked into the kernel or loaded as a module.
FILES
/compat/linux minimal Linux run-time environment
/compat/linux/proc limited Linux process file system
/compat/linux/sys limited Linux system file system
SEE ALSO
brandelf(1), elf(5), linprocfs(5), linsysfs(5)
HISTORY
Linux ABI support first appeared in FreeBSD 2.1.
BSD February 8, 2010 BSD