The permission bit in a file mode that allows a file to be run as a program. Also, questions related the format of program files, and to locating and executing program files.

learn more… | top users | synonyms

57
votes
1answer
6k views

Why does the following script delete itself?

If you create an executable file with the following contents, and run it, it will delete itself. How does this work? #!/bin/rm
21
votes
6answers
47k views

#!/bin/bash - no such file or directory

I've created a bash script but when I try to execute it, I get #!/bin/bash no such file or directory I need to run the command: bash script.sh for it to work. How can I fix this?
1
vote
1answer
29 views

Rc.local not running commands properly

I am running arch Linux and have used this rc-local service: [Unit] Description=/etc/rc.local compatibility [Service] Type=oneshot ExecStart=/etc/rc.local RemainAfterExit=yes [Install] ...
2
votes
1answer
6k views

“No such file or directory” on files that exist? [duplicate]

In the past day, I've found at least 4 binaries that say "bin-name: No such file or directory" when I try to run them. Even if I type part of the name and tab complete it, I get the same error. I'm on ...
0
votes
1answer
32 views

Is my compilation false?

I thought my compliation was okay because no errors were printed out, yet when I try to run the executable, he tells me that it's unreachable... coppan12@b048-08:~$ gcc -Wall prog.c -o prog ...
1
vote
2answers
31 views

How to know the path of a running executable?

I am working on a Linux server, and I running different jobs on different node. However, when compiling my program, I didn't set their specific name, so they are all a.out Now I found one of the ...
5
votes
2answers
12k views

Running sh script: «Permission denied» despite the executable bit and root rights

I installed Debian in VirtualBox (for various experiments which usually broke my system) and tried to launch the VirtualBox guest addon script. I logged in as root and tried to launch autorun.sh, but ...
8
votes
1answer
971 views

Can capabilities be used in scripts without setcap'ing the interpreter binary?

Right now I'm using cap_net_bind_service MY_USERNAME in /etc/security/capability.conf. Now I just need to set cap_net_bind_service+i on the interpreter of my favouite scripting language to be able to ...
0
votes
0answers
18 views

autocomplete in noexec mounted drive

I noticed that bash won't let me tab-complete executable files in a noexec file system. I'm assuming that in order for it to actually auto-complete, the file has to be within the PATH and at least ...
124
votes
1answer
8k views

How is Mono magical?

I'm learning C#, so I made a little C# program that says Hello, World!, then compiled it with mono-csc and ran it with mono: $ mono-csc Hello.cs $ mono Hello.exe Hello, World! I noticed that when I ...
129
votes
9answers
18k views

How to chmod without /usr/bin/chmod?

Today I was told a tale by a Unix trainer, a tale where the root password got leaked to the students, and one of the fellas removed the execute permission from /usr/bin/chmod itself. How do you ...
1
vote
1answer
3k views

permission denied when executing binary despite “rwx” privilege and root user

I'm trying to execute some binary with bash. I am getting a "Permission denied" message despite having given the full privileges (chmod 777) and being the 'root' user: This is the file description: ...
36
votes
3answers
14k views

Does the shebang determine the shell which runs the script?

This may be a silly question, but I ask it still. If I have declared a shebang #!/bin/bash in the beginning of my_shell_script.sh, so do I always have to invoke this script using bash ...
0
votes
0answers
54 views

Unable to run executable on secondary machine

My primary computer can run a program (hc12-coff-gcc) located in the usr/local/bin directory. My secondary computer cannot run the same program. the usr/local/bin directory is in the PATH for both ...
0
votes
1answer
27 views

executable files to normal files via terminal CentOS7

Today I copied some files from the shared folder (Host is a Win7) to my VM ( Guest is a CentOS7). I did this with root permissions. Then I copied th files to my apache location /var/www/html/test I ...
3
votes
1answer
40 views

How can I extract Signatures data from a Windows `exe` file under Linux using cli

If you go to the VirusTotal link , there is a tab called file info(I think; mine is dutch). You'll see a header called "Authenticode signature block and FileVersionInfo properties" I want to ...
6
votes
0answers
110 views

Why does OS X `install` errors on redirected input when the same version of `install` on linux works fine?

I would like to use install command in order to create a new executable file with pre-populated content (e.g. with single pwd command in it). So I've extended this example which creates a new empty ...
3
votes
0answers
49 views

Why doesn't `strip` remove section headers from ELF executables?

A minimal ELF executable only requires the ELF header and at least one program header in order to be functional. However, when I run strip on a short executable, it decides not to throw out the ...
25
votes
6answers
22k views

Can we get compiler information from an elf binary?

Is there some chance to know how a binary was built, under Linux? (and or other Unix) Compiler, version, time, flags etc... I looked at readelf and couldn't find much, but there might be other ways ...
9
votes
4answers
603 views

How to install executables

I sometimes run into software that is not offered in .deb or .rpm but only as an executable. For example Visual Studio Code, WebStorm or Kerbal Space Programm. For this question, I will take Visual ...
6
votes
1answer
536 views

Check last time .sh file used

When you run ./myscript.sh is that considered as "access" time? I need to know the last time a script was run, but I'm not sure if this counts as mtime, ctime or atime (differences described here).
0
votes
4answers
1k views

noexec on /tmp and /var/tmp directory

Our client servers are running old version of jboss (Jboss 4.0) which has lots of known vulnerabilities. Result is that the server is hacked and we are seeing some unknown executables running from ...
19
votes
2answers
8k views

Where should a local executable be placed?

I have an executable for the perforce version control client (p4). I can't place it in /opt/local because I don't have root privileges. Is there a standard location where it needs to be placed under ...
0
votes
0answers
16 views

Bash fails to run executable with No such file or directory [duplicate]

I have an executable copied to an Ubuntu 14.04 AWS instance, and I: chmod +x MyExe.bin ./MyExe.bin And I get: -bash: ./MyExe.bin: No such file or directory This is strange because: The file is ...
1
vote
1answer
41 views

Linux: How to mount a drive from command line

I normally mount my drives just by opening it from filesystem. It automatically mount when I open/click on a drive. But I wanted to mount a drive from command line. I did ran this command sudo mount ...
1
vote
2answers
240 views

Which of /usr/bin/perl or /usr/local/bin/perl should be used?

If I have both /usr/bin/perl and /usr/local/bin/perl available on a system, which one should I use?
3
votes
1answer
70 views

Can not run executable files from a mounted drive

I have downloaded eclipse and rubymine and previously placed in home folder. Then I used to open both programs by double clicking on eclipse.sh and rubymine.sh. Now I moved these two folders in a ...
0
votes
2answers
31 views

Executable file isn't “really there” after rsync [duplicate]

I am issuing the following rsync command (obfuscating the exact path & host), which should copy two binaries: rsync -e "ssh -p 443" -a --info=progress2 -z user@remote:/srv/cgi-bin/ . ...
8
votes
7answers
2k views

List all binaries from $PATH

Is there one-liner that will list all executables from $PATH in bash.
0
votes
1answer
64 views

File does exist but won't execute [duplicate]

I have a file that does exist but won't execute. It says : "No such file or directory". This file is created by a script while creating a "custom toolchain" to compile native libraries for Android ...
1
vote
2answers
67 views

Difference between /usr/bin and /usr/local/bin [duplicate]

What is the difference between /usr/bin and /usr/local/bin? Why are there both directories and why do some executable programs exist in both directories?
1
vote
1answer
58 views

Where is the nginx executable on Debian? [closed]

I've installed the nginx-light package on debian, but I can't find the executable. It's not in /usr/bin, like it says on the official nginx website. Where is it, then?
0
votes
0answers
45 views

Equivalent to OS X's py2app and Windows's py2exe?

I'm writing an application in Python. I don't expect my end users to be particularly tech-savvy, so I'd like to package it up like a familiar native executable. For OS X, that means running it ...
5
votes
3answers
4k views

“No such file or directory” when executing a cross-compiled program on a Raspberry Pi

I recently bought a Raspberry Pi. I already have configured it, and I install a cross compiler for arm on my desktop (amd64). I compiled a simple "hello world" program and then I copy it from my ...
2
votes
0answers
11 views

How can I add my program to system program list (Ubuntu 14.04)? [duplicate]

I made a my program in c++ and generated its executable but every time I need to use my program I need to change my directory to the folder and then execute it. How do I make my program run like an ...
3
votes
2answers
93 views

Handling duplicate programs names bash

I'm wondering if $PATH cascades entries. You'll all need to take a leap of faith with me here, but here it goes. Let's say we have a Java executable at /usr/bin/java but this version is very old and ...
19
votes
2answers
24k views

How to convert a shell script into a binary executable?

I want to convert my shell scripts into binary executable so that nobody else could edit or read it. Is there a way to convert it into a binary executable?
0
votes
1answer
315 views

Installing Wine 1.8 on Debian not working

I followed this link http://tecadmin.net/install-wine-on-ubuntu-and-debian/# to install Wine on Debian 7.9 Wheezy but to no avail. When I reached step sudo ./configure --enable-win64 it asked for ...
0
votes
0answers
36 views

Aardvark Control Center wants TLS/SSE2 Library

Environment: CentOS 7.1 64-bit using Intel i7-4771 Gnome 3 shell I downloaded the Aardvark Control Center (Total Phase) and tried to execute the controlctr bash file, however I received the error ...
-1
votes
1answer
99 views

Remote app - bash: cannot execute binary file [duplicate]

I have an app in a remote Linux machine. I am trying to execute the app via ssh, but I get the error: bash: /app: cannot execute binary file Why is this happening? The application works fine in the ...
3
votes
2answers
371 views

The type command can't distinguish between an executable command and a shell script

So I was reading the book The Linux Command Line, and it says that commands are of four types: (1) executable programs (2) shell builtins (3) shell functions (shell scripts) (4) ...
1
vote
1answer
136 views

Executable not visible when run with sudo [duplicate]

Platform: Ubuntu 10.04 VM running out of VirtualBox File details: -rwxr-x--- 1 myuser myuser 123 2013-10-31 16:10 myscript.sh The executable is visible in the directory: >type myscript.sh ...
3
votes
1answer
48 views

setuid example from Wikipedia: 4700

I was reading about setuid on Wikipedia. One of the examples goes as follows: 4700 SUID on an executable file owned by "root" A user named "tails" attempts to execute the file. The file ...
1
vote
2answers
853 views

Java does not run with error “No such file or directory”, despite it exists and is x86_64

The file exists but bash complains it doesn't when asked to execute it. $ ./Libs/openjdk-1.8.0_60-eap/bin/java bash: ./Libs/openjdk-1.8.0_60-eap/bin/java: No such file or directory $ ls -l ...
1
vote
1answer
25 views

a.out - Data segment and text segment are contiguous iff text segment is not shared. Why is this so?

I was reading the man page for the ancient a.out format (located here), trying to understand the evolution of Unix executable formats. I was wondering about something. The man page says that if the ...
11
votes
2answers
1k views

Run a binary owned by root without sudo

I had a question on a job interview: How can you execute (run) the program with the user user1 without sudo privileges and without access to the root account: $ whoami user1 $ ls -l ...
1
vote
1answer
39 views

auditctl comm vs. exe

I was looking at Linux audit reports. Here is a log from ausearch. time->Mon Nov 23 12:30:30 2015 type=PROCTITLE msg=audit(1448281830.422:222556): proctitle=6D616E006175736561726368 ...
4
votes
1answer
7k views

Bash Script Permission denied & Bad Interpreter

I'm on a kali linux 64 bit. I have created a python script which takes 2 arguments to start. I don't want to type out every time the exact same paths or search in the history of the commands I used ...
0
votes
0answers
15 views

“No such file or directory” attempting to run executable [duplicate]

I'm trying to run a binary on my freshly-flashed Ubuntu box. The file exists, I have permissions to run it, but I'm getting "No such file or directory" error. gkistner@gkistner-dt3:~/cx/_temp_dump$ ...
3
votes
1answer
10k views

-ksh: revenue_ext.ksh: not found [No such file or directory]

I am getting the same not found [No such file or directory] error when trying to execute a ksh script. Read tips about the PATH and running the script with a ./ in the posts here and here and tried ...