大约有 32,000 项符合查询结果（耗时：0.0355秒） [XML]
Setting up FTP on Amazon Cloud Server [closed]
...ee on the left. Select the security group assigned to your EC2 instance. Then select the Inbound tab, then click Edit:
Add two Custom TCP Rules with port ranges 20-21 and 1024-1048. For Source, you can select 'Anywhere'. If you decide to set Source to your own IP address, be aware that your I...
Meaning of “[: too many arguments” error from if [] (square brackets)
...ingle square brackets are used (which is a shortcut for the test command), then the string may be split out into multiple words. Each of these is treated as a separate argument.
So that one variable is split out into many arguments:
VARIABLE=$(/some/command);
# returns "hello world"
if [ $VARI...
How to check if a symlink exists
...nds this via Google as I did, the full syntax using ! is if ! [ -L $mda ]; then .... fi i.e. put the exclamation mark outside the square brackets.
– Sam
Sep 5 '12 at 8:06
...
Easiest way to check for an index or a key in an array?
...bash shell script?
A wrapper function:
exists(){
if [ "$2" != in ]; then
echo "Incorrect usage."
echo "Correct usage: exists {key} in {array}"
return
fi
eval '[ ${'$3'[$1]+muahaha} ]'
}
For example
if ! exists key in array; then echo "No such array element"; fi
...
Loop through files in a folder using VBA?
...
It could be because the Do while...loop is better then while... wend. more info here stackoverflow.com/questions/32728334/…
– Hila DG
May 26 '16 at 1:27
...
Design patterns or best practices for shell scripts [closed]
... bash -o c:d:: --long config_file:,debug_level:: -- "$@"`
if test $? != 0
then
echo "unrecognized option"
exit 1
fi
eval set -- "$getopt_results"
while true
do
case "$1" in
--config_file)
CommandLineOptions__config_file="$2";
shift 2;
;;
...
Can promises have multiple arguments to onFulfilled?
...read) {
Promise.prototype.spread = function (fn) {
return this.then(function (args) {
return Promise.all(args); // wait for all
}).then(function(args){
//this is always undefined in A+ complaint, but just in case
return fn.apply(this, args);
...
MySQL - UPDATE multiple rows with different values in one query
...y:
UPDATE table_users
SET cod_user = (case when user_role = 'student' then '622057'
when user_role = 'assistant' then '2913659'
when user_role = 'admin' then '6160230'
end),
date = '12082014'
WHERE user_role in ('...
How to check if a file is empty in Bash?
...sspellings are irritating, aren't they? Check your spelling of empty, but then also try this:
#!/bin/bash -e
if [ -s diff.txt ]
then
rm -f empty.txt
touch full.txt
else
rm -f full.txt
touch empty.txt
fi
I like shell scripting a lot, but one disadvantage of it is ...
How do I export a project in the Android studio?
...ion in the android studio:-
First Go to Build->Generate Signed APK
Then Once you click on the Generate Signed APK then there is info dialog message appear.
Click on the Create New button if you don't have any keystore file. If you have click on the Choose Existing.
Once you click on the ...