All Questions
69
questions
4
votes
2
answers
4k
views
bash script.sh vs ./script.sh vs #shebang
Assuming i am in a bash shell now and i execute the following
[me@server]$ bash script.sh
q1) Is a new child bash process created to execute the script ?
If i do a
[me@server]$ ./script.sh
q2) ...
- 1,625
1
vote
1
answer
5k
views
Error with command cut: the delimiter must be a single character
I am trying to run this command from console:
# HTTPDUSER=`ps aux | grep -E '[a]pache|[h]ttpd|[_]www|[w]ww-data|[n]ginx' | grep -v root | head -1 | cut -d\ -f1`
But got this error:
Try `cut --...
- 385
4
votes
1
answer
651
views
What does chmod 7760 <directory> do in CentOS 7 bash?
I typed the command chmod 7760 by accident. I meant to type chmod 770 and now I'm curious what the first command did exactly.
After typing chmod 7760 , I typed ls -Al and the directory name was ...
0
votes
1
answer
2k
views
How do I run Asterisk as user other than root?
I compiled Asterisk 11 from source as user root on CentOS. Now I want Asterisk to run as user asterisk group asterisk. I have uncommented
AST_USER="asterisk"
AST_GROUP="asterisk"
in
/etc/sysconfig/...
- 1
2
votes
1
answer
2k
views
Prompt for values until press ENTER key with empty value
I'm working in a bash script for automatize some tasks. This is what I have done until now:
#!/usr/bin/env bash
PS3='Please enter your choice: '
options=("Create new group" "Add users to group" "...
- 385
0
votes
1
answer
376
views
CentOS bashrc function to email on login
I've a system setup where an email is sent on a user login (line from .bashrc):
printf "user details, ip etc" | mail -s "[LOGIN NOTICE] `hostname` - `whoami`" <admin>@<domain>.co.uk
...
- 11
1
vote
3
answers
26k
views
Allowing another user to execute program?
I want to allow a particular user to execute a compiled program in my directory. I got his username from cat /etc/passwd. The executable does not write any file but reads a few and gives output on the ...
- 113
0
votes
1
answer
193
views
Release control from init.d script centos
I am using logstash-forwarder and starting it inside its init script with the command:
/opt/logstash-forwarder/bin/logstash-forwarder -config=/etc/logstash-forwarder -spool-size 100
This command ...
- 133
1
vote
1
answer
3k
views
echo "something" > file not working when sh script is being executed by remote PHP server
I've got a web-server with my hardcoded webpanel for Source server management and I've got my VPS on CentOS which doesn't really want to execute sh script when asked from remote server.
Web-server ...
- 11
0
votes
1
answer
172
views
CentOS : Removed /root
I have been doing experiments with CentOS and now I am in a situation.
I have added an user by mentioning his home directory as /root and then I did
userdel -rf <username>
So its does the job ...
- 784
1
vote
2
answers
5k
views
Is it possible to run a dialog/whiptail script in one TTY from another?
The origin of this question, for me, is being able to run a whiptail command in a %pre script from a kickstart file when installing a custom distribution based on Centos. However, the behaviour ...
- 175
0
votes
1
answer
482
views
How to apply "set number" to vi on root?
I'm using vi on centos 6.5 and added "set number" script to /etc/bashrc in order to look line numbers whenever boot.
It works well to show it on user login but not root.
How to apply "set number" of ...
- 115
0
votes
2
answers
561
views
Empty /var/log after running cron bash script
I wrote a little bash script and all of a sudden my /var/log folder is completely empty except for the log I created for the bash script.
This is the script I'm running every hour with cron:
#!/bin/...
- 1,021
1
vote
1
answer
2k
views
Associate MIME Type with Shell Script?
I want to associate any file type with a .abc extension with the following shell script:
#!/bin/bash
echo arg 1 is: $1
The .abc type files just have text, but I want to ensure that opening a file ...
user326001
206
votes
11
answers
41k
views
I accidentally typed password into bash command line
I accidentally typed my password into bash command line, mistaking the Last login: ... line for Wrong password (I was in a hurry). What do I do to cover my trace?
What I did was editing .bash_history ...
- 2,013