WikiRiks - linux:bash

Bash: Bad interpreter: no such files or directory

Anonymous (anonymous@undisclosed.example.com) — 2014-09-12T13:09:15+00:00

Bash: Bad interpreter: no such files or directory Scenario When you try to run a bash script you receive this error -bash: ./controller.sh: /bin/bash^M: bad interpreter: No such file or directory In my case this happens systematically if I transfer bash files with

Check DNS propagation (useful during domain transfer)

Anonymous (anonymous@undisclosed.example.com) — 2014-09-12T13:10:58+00:00

Check DNS propagation (useful during domain transfer) When a domain is pending transfer it may be useful to be notified as soon as possibile when the DNS propagates to our location, so we can reach the new server immediately. This problem is particularly important with some hosting services because you don't have access ahead of that time.

Compact Firefox DB on Linux and speed up opening

Anonymous (anonymous@undisclosed.example.com) — 2016-01-20T12:43:21+00:00

Compact Firefox DB on Linux and speed up opening Mozilla Firefox uses sqlite3 DBs to store it's stuff. These DBs get fragmented because of adding and deleting rows. That's why I made this simple script to cope with the problem. #!/bin/bash # # compact-ff.sh v. 1.0.0 # Compacts all Firefox DBs # # http://www.riksoft.it # LGPL licence # # Syntax: ./compact-ff.sh # Requires sqlite3 v.10 # If you see errors like "encrypted or malformed DB..." it means you have to get # a newer version of sqlit…

Delete every file except some

Anonymous (anonymous@undisclosed.example.com) — 2014-09-12T13:17:07+00:00

Delete every file except some There are different solution to this task. The most common are: rm * | grep -v [pattern to ignore] for i in `ls * | grep -v [pattern to ignore]` do do something here done find . ! -name u ! -name p -maxdepth 1 -type f -delete

Delete every file except the newest ones

Anonymous (anonymous@undisclosed.example.com) — 2014-09-12T13:15:56+00:00

Delete every file except the newest ones Delete all but the most recent X files in bash is quite simple and is particularly useful for logs and backups scripts. Delete old log files except the latest 10 rm `ls -t *.log|awk 'NR >10'` Delete all the zip files except the newest 2.

Bash: DtDns IP update client

Anonymous (anonymous@undisclosed.example.com) — 2017-08-28T09:31:40+00:00

Bash: DtDns IP update client A simple bash script to keep updated DtDns, the best free dynamic DNS service I know of. #!/bin/bash # RS UPDATER 1.1.0 # http://www.riksoft.it/wikiriks/linux/bash/dtdns-ip-update-client # MIT licence #--------- CONFIG --------------------------- MYHOST="yourhost.darktech.org"; MYPSW="accountPass"; #-------------------------------------------- IPNEW=`wget -qO- icanhazip.com`; IPOLD=$(cat "updatednt.dat" 2> /dev/null); echo $IPOLD; if [ "$IPNEW" != "" ]; then …

Bash: get public IP

Anonymous (anonymous@undisclosed.example.com) — 2020-06-04T17:52:02+00:00

Bash: get public IP If you are behind a router you can't use ifconfig to find the public IP, but the problem can be solved easily beacause the IP can be obtained from remote servers such as You only have to choose that with quicker response time. You could even create your own webpage using PHP and

Bash prompt on new line

Anonymous (anonymous@undisclosed.example.com) — 2024-11-27T18:13:10+00:00

Bash prompt on new line When you have a long path in the prompt, only few characters could be left to write the command before going on the next line. With this prompt instead, the command starts from a new line regardless of the path length. Try it pasting this in a terminal

Bash

Anonymous (anonymous@undisclosed.example.com) — 2014-09-12T13:37:10+00:00

Bash Tips and tricks about Linux Bash (As command line and scripting language). See also the section Linux ---------- Table of contents bash index