i am working on ubuntu server from past few months
and now suddenly ps, ifconfing commnad stop working with below error.
user1#Fb1:/usr/bin$ ps
-bash: /bin/ps: No such file or directory
any suggestions to get this command working back.
What's the output of which ps and ls /usr/bin -al (which are both in /bin also)? Does it work if you gain root privileges, either using sudo ifconfig or sudo su, then ifconfig?
This is possibly an issue with file permissions but it's hard to say without more information.
First use locate to find your ps or ifconfig program:
$ locate ps | grep bin
Also you may try whereis command:
$ whereis ps
If you don't find them, try to search as root user.
i have tried to put all the outputs of different commnads as below
root#Fb1:/usr/bin# whereis ps
ps: /bin/ps /usr/share/man/man1/ps.1.gz
root#Fb1:/usr/bin# ls -lsa ps
16 -rwxr-xr-x 1 root root 15859 2010-05-26 12:21 ps
Something wrong with your $PATH I suspect it doesn't have /sbin .. maybe new software overwrite your $PATH..
normal path should be include this (mebada is my user name)
mebada#T430:~$ echo $PATH
/home/mebada/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
Related
I downloaded mongoDB and I try to use brew, it didn't work.
I try bunch of commands such as:
$ curl -O https://fastdl.mongodb.org/osx/mongodb-osx-x86_64-3.4.6.tgz
$ tar -zxvf mongodb-osx-x86_64-3.4.6.tgz
$ mkdir -p mongodb
$ cp -R -n mongodb-osx-x86_64-3.4.6/ mongodb
$ sudo mv mongodb /usr/local
Didn't work
Step 5: it says the directory is not empty or is not exist. I try to empty the directory didn't work and I try to create a different one, it didn't work.
I can't find any solution. Can someone help me, please?
I think your /usr/local folder already contains a non-empty folder named mongodb.
Refer this for details.
You can confirm it by listing out the files in it
ls /usr/local/mongodb
Maybe, you can try removing that directory as a superuser if it doesn't have any important files and continue with the installation
I have two versions of PHP installed on the server:
$ find / -name php -type f
result:
/opt/rh/php54/root/usr/bin/php
/opt/rh/php55/root/usr/bin/php
I've added php54 path to ~/.bash_profile
$ echo $PATH
result:
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin:/root/bin:/opt/rh/php54/root/usr/bin/php
however $ php -v still doesn't work.
in fact if I $ cd /opt/rh/php54/root/usr/bin and run php -v from the directory itself, it still doesn't work. I get:
-bash: php: command not found
PHP is installed as there are websites running, just command line is not working...
Both
php55-php-cli-5.5.21-4.el6.x86_64
php54-php-cli-5.4.40-2.el6.x86_64
are installed...
Wrong path:
find results:
/opt/rh/php54/root/usr/bin/php
^^^--- your php binary
$PATH expects only DIRECTORIES. You listed the above path in $PATH, which means that the shell will be searching for .../usr/bin/php/php. Note the doubled php. First one is the "directory" that you added in $PATH, while the second one is the program you're trying to run. The $PATH entry should be JUST .../usr/bin/, WITHOUT the php.
I have a file named db.sh in bin folder and when I try to execute this command $ sh bin/db.sh I receive bin/db.sh: line 2: mongod: command not found in console what is wrong there?
#!/bin/sh
mongod --dbpath db --rest --jsonp;
Here is the situation:
which mongod would give you the path to the mongod binary. If there is no output from which, there which could not find mongod. This may be the case that there is not path in the $PATH variable, that contains the mongod binary. You can make sure by executing echo $PATH.
If you have your MongoDB installed manually, in some directory, then you will need to add /path/to/your/mongodb/bin to the $PATH variable in your .bashrc, like this:
PATH=/path/to/your/mongodb/bin:$PATH
But anyway :) seems like you do not have MongoDB installed on your machine. Follow this article to install it.
I'm sorry that my question seems rather vague but this is the entire problem i'm facing. I tried installing an rpm package on cygwin after downloading it from the website but i always get the same error
-bash: rpm: command not found
and I have reinstalled it twice, but i always get the same problem, and it's not just that, i can't even use simple commands like ls. Even if i write ls I get no output. This is what my screen looks like.
User#User-PC ~
$ rpm -ivh avr-binutils-2.17tinyos-3.cygwin.i386.rpm
-bash: rpm: command not found
User#User-PC ~
$ locate rpm | grep bin
User#User-PC ~
$
User#User-PC ~
$ ls
User#User-PC ~
$
what do I do to fix this?
First, locate does not auto-update itself; you must run updatedb periodically to get the current list of files. For optimal speed and usability, add the --prunepaths and --prunefs switches.
Second, try echo $PATH to see the current path, and call ls with a fully-qualified pathname: /bin/ls -l
I suspect ls is set to an invalid alias or internal function (bad command parameters). Check the contents of ~/.bash_profile, ~/.bashrc, and ~/.profile .
I am not sure if this belongs to superuser. Please excuse.
Here is what I am trying to do. I need to create a ksh script which will establish an ssh connection to a remote machine and find all ".tar" files in a particular path for a particular date and list them. Next, I will need to perform an scp command to copy all those .tar files to the server I am executing the ksh script on.
Here is what I have so far and it is far from complete... (please bear with me.. I am very new to ksh scripting).
Can someone please advise if I am going in the right direction and provide some pointers as to how I can improve and achieve what I am trying to do?
Many thanks in advance.
SSERVER=server1
SOURCEPATH=/tmp/test
sudo ssh $SSERVER \
find $SOURCEPATH -name "*.tar" -mtime +7 -exec ls {} \;
#will the above two statements work?
#I then need to output the ls results to a temp variable (i believe) and issue an scp on each of the files
#Copy files from SOURCEPATH to PATH
sudo scp "$SSERVER:$SOURCEPATH/$file1" /tftpboot
sudo scp "$SSERVER:$SOURCEPATH/$file2" /tftpboot
SSERVER=server1
SOURCEPATH=/tmp/test
sudo ssh "$SSERVER" "find $SOURCEPATH -name '*.tar' -mtime +7" |
while IFS= read -r; do
sudo scp "$SSERVER:'$REPLY'" /tftpboot
done