Questions tagged [unix-shell]

Question 1

Can anyone help me scheduling a job on crontab that will run on 12th of each month and if 12th falls on weekends it should run on the next Monday. I found something from Internet but it's not working ...

Question 2

I am trying to add system/device mac address in syslog. No solution is working for me. Following command gives me mac address, just wanted to use in rsyslog template. mac_addr=$(ifconfig en0 | awk '/...

Question 3

am working on a scenario where i need to Change Ubuntu server password every 7 days and do autologin. i tried with breaking the problem: command to create user with password: useradd -p $(openssl ...

Question 4

On ESXi Hypervisor, If I run a command on the terminal via SSH, the commands are logged in the shell.log file, i.e if i run this command [root@esxi04:~] ls -la then I can see this command in shell.log ...

Question 5

I'm trying to suid a shell and it's not working. I need help understanding why, and how to fix it... I'm following these steps (as root) cp /usr/bin/bash /usr/bin/bash-emergency chmod 4755 /usr/bin/...

Question 6

I want ONLY directories and files that contain the letter. I've been able to recreate it from a previous question. But the tar is not a gzip. And when trying to make it a gzip it...doesn't remove ...

Question 7

Migrating from rssh to rush... I can't figure out what it means by not an absolute directory name. see logs below: Aug 31 14:07:24 secmgrprd04 systemd: pam_unix(systemd-user:session): session opened ...

Question 8

Linux distributions place some important scripts and config files in the skeleton, from where they are copied to each new user's home directory. Ideally system-wide files would be used instead of ...

Question 9

below is my use case , I have to take a input from a user for a specific command which need to run on a remote machine.But my problem is I am not able to access that machine directly so what I am ...

Question 10

Problem context I am trying to implement a job orchestrator whose agent/worker programs, connect to machines via an SSH session/shell. I would like to transfer (potentially binary) files to these ...

Question 11

I am facing weird issue on my server (Unix). There are couple vendors reported me that my server is sending malicious requests to their server by using SSH Protocol. I have already checked the system ...

Question 12

I'm writing shell script on my custom board. In this script I use openssl to encode file at runtime using this command: openssl des3 -salt -in file.txt -out my_file.des3 -k my_password Is there a way ...

Question 13

What if I want to delete files/folders that are not accessed for a few days in Unix? Say there are some files that were last accessed 5 days ago in a particular location. I want to delete those. What ...

Question 14

PFB script dd=$(perl -e 'use POSIX;print strftime "%Y%m%d",localtime time-172800;') Date=$(perl -e 'use POSIX;print strftime "%d%m%Y",localtime time-172800;') for i in `cat /path/Path_CDR.txt` do cd ...

Question 15

I am running a cron job everyday at 21:00 UTC which downloads few csv files from sftp server, renames the downloaded files and then loads the files in database(mysql) and updates the time in database (...

Question 16

I want to replace in this string Wed Apr 10 06:44:10 UTC 2019 all whitespaces with comma and along with that trim off UTC part. What I have tried : var1="Wed Apr 10 06:44:10 UTC 2019" echo ${var// /,...

Question 17

I would like to parse mail log files, which originally look like this: 2018-10-23 23:27:51,026 INFO [ImapServer-4] [ip=10.10.11.50;oip=168.232.24.2;via=10.10.11.50(nginx/1.7.1);ua=Zimbra/8.8....

Question 18

I'm writing a script to change few setting according to location and to do this i selected hostname as a benchmark. My aim is, if my hostname condition comes true then do this. For this i'm writing a ...

Question 19

I'm in the cur folder of a maildir store. I want to cat a message .. pipe it to a command .. and have the body of the message spit out. Simple. Example: If its a mime message .. and there is a ...

Question 20

What command can I run to tell whether SunOS 5.10 is running a SPARC or Intel chip?

Question 21

We had a guy retire on us, and the documentation left behind is a little on the light side. Need a little help identifying and using part an older client-server system. The server itself is ...

Question 22

I'm completely new to the scripts and hence need help to fix this. We've around 3000 VMs & 450 Physical servers which are Linux based servers (few of then ubuntu starting from 9.x & few of ...

Question 23

I got a problem to solve. How do i hide the 'dn:' part ? dn: uid=trebbouh,ou=2017_paris,ou=2017,ou=paris,ou=people,dc=42,dc=fr This is the command I used : ldapsearch -x -LLL uid=$USER -W

Question 24

Ok if subject is not clear i will explain my doubt.I have a shell script kept at my local user called (executeAdM.sh), and when i execute this script i am connecting to SUDO user by taking commands ...

Question 25

This question has been asked previously in https://joomla.stackexchange.com/questions/20697/securing-a-joomla-installation-on-apache-mod-php but it may belong here better since it is not Joomla ...

Question 26

In my system, df -hT outputs something like this: > df -hT Sist. Arq. Tipo Tam. Usado Disp. Uso% Montado em devtmpfs devtmpfs 1,9G 8,0K 1,9G 1% /dev tmpfs tmpfs 1,...

Question 27

I am facing a weird but a sensible issue, I have 2 ORACLE_HOMEs, 1st one points to ORACLE Database Software and 2nd one points to ORACLE Client Software. Why I am forced to do this - reason is: In my ...

Question 28

I have a program that generates large logs on the standard output. Actually I don't care about the log, but I do want to know the last 1000 lines or so if the program finishes or crashes. I want ...

Question 29

I am trying to write a script to detect whenever a file is added to a specific folder and run a command using the last file added name. What I am specifically trying to do is to create a QR code for ...

Question 30

What I'd like to do is run the same command twice while hitting enter once, with minimum typing. This would be the long version for example: # sudo puppet agent -tv --server foo.bar && sudo ...

Question 31

We have multihomed servers. And to simplify things, I would like to know the dns of the interface trough which I'm logged in. (e.g. to set PS1 thus it can be used in scp commands) My solution for ...

Question 32

The PID file for this statement is created but it is always empty. When running the shell with -x I see that $! empty, yet at the end the java job is left running in the background as desired. Why is ...

Question 33

script abc.sh is on machine M1 and xyz.sh is on machine M2 script abc.sh: #!/bin/bash ssh -l user1 host.com ./xyz.sh -b1 arg1 -b2 arg2 script xyz has certain user prompts like pwd etc When I ...

Question 34

When I run df -hl | grep '/dev/disk1' | awk '{sub(/%/, \"\");print $5}' I'm getting the following error: awk: syntax error at source line 1 context is {sub(/%/, >>> \ <<< "\")...

Question 35

Is there any good existing solution for moving files from host A to host C, using host B a an passive intermediate storage area. A -> B -> C Limitations Host A and host C are on separate networks ...

Question 36

I am doing a some PHP development on an IBMi running ZendServer6. I have to call PHP by its full path of /usr/local/zendsvr6/bin/php-cli. Is there a dotfile I can edit in my home directory or some ...

Question 37

I have a source directory on a machine with a bunch of files, all with the same permissions, that I want to copy to another directory, that is mounted via SMB. [tmark@dexter JR09141045 ...

Question 38

I have a shell-script which extract details from a log file between two dates and executes a command on the output to generate some report.The log files are on different server and scripts are ...

Question 39

(From : https://stackoverflow.com/questions/15245144/copy-file-permissions-but-not-files, closed because off-topic) I have two copies of the same directory tree. They almost have the same files in ...

Question 40

I'm trying to make a symlink to a directory if it exists only and cannot figure out how. I tried various ideas I found and none worked. Most notable idea that i thought would do the job was to use ln ...

Question 41

For some reason my cron job scripts aren't exiting cleanly and they're backing up my server. There are currently a couple hundred processes running for one of my users. I can use the following command ...

Question 42

I'm unable to run a script in linux using plink.exe. I'm using my user x to login and script is under y user, which I need to sudo to y and run it. I was able to at command prompt manually but not ...

Question 43

Is another question extended from the previous one [1] I have a compressed file and stream them to feed into a python program, e.g. bzcat data.bz2 | parallel --no-notice -j16 --pipe python parse.py ...

Question 44

Curl is working fine on the node itself: [ec2-user@smokebase1 ~]$ curl -s -I --retry 3 --header 'Host: smoke-base.dev-test.com' localhost:8080/test/api/search?where=where%20%2Fxml%2Fitem%2Fcategory%...

Question 45

I am working on migrating an application from OpenVMS to RedHat Linux 6. The application is a green screen terminal application. The users will log into Linux via SSH and the application should ...

Question 46

I am trying to install RVM on a Solaris 11 system, the curl -sSL https://get.rvm.io | bash -s stable went through, but when I actually try to use rvm, it simply stats "ERROR: Missing GNU tools: grep ...

Question 47

I would like to redirect the command executed along with the output to a file. for example: #ls >ls_out.txt ls_out.txt should be something like : ls file1 fil2 Thanks!

Question 48

I want to Check processor status- check processor/cpu status and failed/off status so for that I used command prtdiag and want to fetch the cpu status only from that. how can i do that?

Question 49

I have a c++ tool that outputs to STDOUT via printf i.e. printf ("%s\n", logline); I then pipe that to rotatelogs i.e. tool | rotatelogs /tmp/logs/log_%s 60 Everything works great, but ...

Question 50

1) Here is the command to install special package (for example system/header) #pkg install system/header 2) ALso we can install several packages #pkg install system/header network/ssh package/rpm 3)...