Command line tool to delete folder with a specified name recursively in Windows?
Similar to BlackTigerX’s “for”, I was going to suggest for /d /r . %d in (_svn) do @if exist “%d” rd /s/q “%d”
utilities
How to convert map to url query string?
The most robust one I saw off-the-shelf is the URLEncodedUtils class from Apache Http Compoments (HttpClient 4.0). The method URLEncodedUtils.format() is what you need. It doesn’t use map so you can have duplicate parameter names, like, a=1&a=2&b=3 Not that I recommend this kind of use of parameter names.
Longest line in a file
Using wc (GNU coreutils) 7.4: wc -L filename gives: 101 filename
Unix command to prepend text to a file
printf ‘%s\n%s\n’ “to be prepended” “$(cat text.txt)” >text.txt
Command line command to auto-kill a command after a certain amount of time
GNU Coreutils includes the timeout command, installed by default on many systems. https://www.gnu.org/software/coreutils/manual/html_node/timeout-invocation.html To watch free -m for one minute, then kill it by sending a TERM signal: timeout 1m watch free -m
Timeout a command in bash without unnecessary delay
You are probably looking for the timeout command in coreutils. Since it’s a part of coreutils, it is technically a C solution, but it’s still coreutils. info timeout for more details. Here’s an example: timeout 5 /path/to/slow/command with options