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Timeout a command in bash without unnecessary delay
...ss by SIGKILL.
declare -i delay=DEFAULT_DELAY
function printUsage() {
cat <<EOF
Synopsis
$scriptName [-t timeout] [-i interval] [-d delay] command
Execute a command with a time-out.
Upon time-out expiration SIGTERM (15) is sent to the process. If SIGTERM
signal is blocked...
How do I write a bash script to restart a process if it dies?
...foo, kills it, starts a new foo.
PID files go stale. You need over-complicated (or should I say, non-trivial) logic to check whether the PID file is stale, and any such logic is again vulnerable to 1..
What if you don't even have write access or are in a read-only environment?
It's pointless overc...
How to pass macro definition from “make” command line arguments (-D) to C source code?
...
Just use a specific variable for that.
$ cat Makefile
all:
echo foo | gcc $(USER_DEFINES) -E -xc -
$ make USER_DEFINES="-Dfoo=one"
echo foo | gcc -Dfoo=one -E -xc -
...
one
$ make USER_DEFINES="-Dfoo=bar"
echo foo | gcc -Dfoo=bar -E -xc -
...
bar
$ make
...
Detect URLs in text with JavaScript
...ation to avoid breakage, but most linkifiers I use (Gmail, etherpad, phabricator) separate trailing punctuation from the URL.
– skierpage
Jul 30 '15 at 19:01
...
UnicodeDecodeError when redirecting to file
...er and of accents).
Note that the concept of newline adds a layer of complication, since it can be represented by different (control) characters that depend on the operating system (this is the reason for Python's universal newline file reading mode).
Now, what I have called "character" above is wha...
What is the best Distributed Brute Force countermeasure?
...the connection itself -- and in those cases, we no longer have an 'authentication' issue, we have a genuine franchise-sized pull-the-plug FUBAR situation
The second part of the countermeasure: System-wide throttling of unrecognized IPs
In order to make a whitelist work for an open-registration web...
How big is too big for a PostgreSQL table?
.... (An ORM with any dbms, actually.)
– Mike Sherrill 'Cat Recall'
Feb 19 '14 at 13:16
@MikeSherrill'Catcall' Good point...
How do you get the list of targets in a makefile?
...E_LIST)) ensures that the same makefile is targeted as in the original invocation, regardless of whether it was targeted implicitly or explicitly with -f ....
Caveat: This will break if your makefile contains include directives; to address this, define variable THIS_FILE := $(lastword $(MAKEFILE_LIS...
A variable modified inside a while loop is not remembered
...
@chepner: Thx! I added another one, dedicated to You!
– TrueY
May 31 '13 at 12:57
T...
How do I 'overwrite', rather than 'merge', a branch on another branch in Git?
...the correct order, need perform this action with a single command line invocation, and don't mind running plumbing commands, you can do the following:
$ git checkout A
$ git merge --ff-only $(git commit-tree -m "Throw away branch 'A'" -p A -p B B^{tree})
This basically acts like the (non-existent) ...