0
votes
3answers
56 views

Tinydns data file change ip with bash

I am using tinydns and need to dynamicly change some ip in data file. I want to use bash script for it. For example data file: +sub1.example.org:282.196.222.245:14400 ...
1
vote
1answer
92 views

Wrangling sed to find and reformat login date (or, how to kill idle mosh-server processes)

I have an old method of killing idle mosh-server processes, which doesn't work on my new VPS. Here's the old method, which I run in root's crontab to clean up mosh processes that have been idle for ...
1
vote
2answers
119 views

Grabbing the directory path in a message like “You have new mail in /var/spool/mail/root”

So I often get messages such as You have new mail in /var/spool/mail/root and end up typing/copy-pasting out: tail /var/spool/mail/root, which is a bit cumbersome. Is there a simple command that ...
2
votes
2answers
3k views

Using sed to remove both an opening and closing square bracket around a string

I'm running this command in a bash shell on Ubuntu 12.04.1 LTS. I'm attempting to remove both the [ and ] characters in one fell swoop, i.e. without having to pipe to sed a second time. I know square ...
1
vote
2answers
384 views

Extract repository name from GitHub url in bash

Given ANY GitHub repository url string like: git://github.com/some-user/my-repo.git or git@github.com:some-user/my-repo.git or https://github.com/some-user/my-repo.git What is the best way in ...
1
vote
1answer
537 views

Check if folders exist in Git repository… testing if a sub-string exists in bash with NULL as a separator

I have a common git "post-receive" script for several projects, and it needs to perform different actions if an /app/ or /public/ folder exists in the root. Using: FOLDERS=`git ls-tree -d ...
3
votes
2answers
546 views

egrep matching group not printing?

I'm trying to create a bash script that will grep lines from a file using egrep. I've created the regex that should group the information I want, the issue is trying to get the output. I've been ...
4
votes
3answers
5k views

Regex for sed to grab multiple lines or a better way?

I'm creating a script that connects to a server and dumps the output to a tempfile. I want to use sed in the script to grab specific information from the temp file. The output would always have the 80 ...
6
votes
2answers
3k views

rsync: How to exclude Dotfiles only in topmost directory?

When performing backups under Bash with rsync, I'm trying to exclude all dotfiles and hidden directories in the top directory, but not those in otherwise targeted directories. For example: /copyme.c ...
0
votes
5answers
162 views

Sed regexp /d deleting whole file

Given a typical known_hosts file: [123.45.67.89]:22 ssh-rsa bbuivvhbkbjdnflksndkfnksnfk... [98.76.54.32]:14444 ssh-rsa hohdibsodbfoasbfbsabdfbsd... [77.34.122.33]:32209 ssh-rsa ...
0
votes
1answer
363 views

Move all images in folder to subfolder, and update all references to those images to their new location?

I have a folder which contains a ~50 text files (PHP) and hundreds of images. I would like to move all the images to a subfolder, and update the PHP files so any reference to those images point to the ...
1
vote
1answer
400 views

Need help on awk/sed/ perl pattern with regex / grep

Sample file output from grep file1:my $dbh = DBI->connect("dbi:mysql:$database_name", $DB_USER, $DB_PASSWD) file2:($dbc,$rc) = mysql_connect($mysql_host,$mysql_user,$mysql_password); The awk ...
3
votes
1answer
975 views

Bash: How do I copy timestamps using touch and regex?

Since this is more of a Bash question I think this is better suited for serverfault than superuser, even though I'm talking about media files. I had to make a batch conversion of several media files, ...
1
vote
2answers
2k views

Regex negative matching trouble

I've been frustrated trying to come up with a regex to match strings based on specific file names and am hoping there's a regex ninja (I'll omit the obligatory xkcd link for the sake of time) out ...
0
votes
2answers
720 views

test filenames for regex patterns in bash

I'm not sure exactly how the code should be written but I want to test a file/folder for naming patterns, something like: if [ -d $i ] && [ regex([0-9].,$i) { do something } I want ...
2
votes
2answers
425 views

Bash script to create mass series of directories

I need to create a Bash script to go into every user's home folder, seek out a wp-content folder, create a directory uploads under it, and then chmod 0756 uploads. How do I achieve this? I imagine I ...
3
votes
2answers
817 views

Replace Wildcard Character in Filenames

I can't get this to work: I have hundreds of files that our database developer has foolishly put asterisks in, so that we have files named like this: *1*_Floorplan.jpg I need to recursively (two ...
1
vote
3answers
2k views

Don't need the whole line, just the match from regular expression

I simply need to get the match from a regular expression: $ cat myfile.txt | SOMETHING_HERE "/(\w).+/" The output has to be only what was matched, inside the parenthesis. Don't think I can use ...
1
vote
7answers
832 views

Bash regular expression question

I am using ps -ef | grep java | wc -l to find the number of java processes running at any given time. The above command obviously counts the "ps -ef | grep java" command also in the result. To ...
5
votes
3answers
2k views

Bash command for regular expression substitution

What bash command can be used for regex substitution on a pipe? cat foo.txt | someprogram