echo | Asynchronous I/O in Swift
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QUESTION
"scripts": {
"start": "SET NODE_ENV=staging && nodemon app",
"production": "set NODE_ENV=production && nodemon app",
"test": "echo \"Error: no test specified\" && exit 1"
},
...ANSWER
Answered 2021-Jun-16 at 03:49The likely problem is that the space character before &&
becomes part of the environment-variable values, so that the values are staging
and production
- note the trailing space - rather than staging
and production
.
The simplest way to avoid this is to remove the space before &&
(it looks awkward, but it works):
QUESTION
Or, more specifically, does it use the default shell, or actually running the actual file. Example: system("echo Hello, World!")
. Would this run using, lets say Bash, or would this run by telling to kernal to run a command? Also, is this on topic, or would this fit better somewhere else?
ANSWER
Answered 2021-Jun-15 at 21:28man system
is your friend here. This is what is says on my system:
The system() library function uses fork(2) to create a child process that executes the shell command specified in command using execl(3) as follows:
QUESTION
I have the below requirement . i am trying to run the condition in loop and its taking more time. is there a one time command anything which will not take more time to process a 70 MB file.
Requirement: if @pRECTYPE="SBSB" line contains @pSBEL_MCTR_RSN="XXX" tag then we need to copy and append that to next @pRECTYPE="SBEL record at the end of the line
File :note : in file there will be no blank lines. I have given enter to avoid line continuation
@pRUKE=dfgt@pRECTYPE="SMDR", @pCONFIG="Y" XXXXXXX
@pRUKE=dfgt@pRECTYPE="SBSB", @pGWID="1234", @pSBEL_MCTR_RSN="KX28", @pSBSB_9000_COLL=""
@pRUKE=dfgt@pRECTYPE="KBSG", @pKBSG_UPDATE_CD="IN", XXXXXXXXXXX
@pRUKE=dfgt@pRECTYPE="SBEL", @pSBEL_EFF_DT="01/01/2017", @pCSPI_ID="JKOX0001", @pSBEL_FI="A"
@pRUKE=dfgt@pRECTYPE="SBEK", @pSBEK_UPDATE_CD="IN",XXXXXXXXXXXXXXXXXXX
@pRUKE=dfgt@pRECTYPE="DBCS", @pDBCS_UPDATE_CD="IN",XXXXXXXXXXXXXXXXXXXXXXXXXX
@pRUKE=dfgt@pRECTYPE="MEME", @pMEME_REL="18", @pMEEL_MCTR_RSN="KX28"
@pRUKE=dfgt@pRECTYPE="ATT0", @pATT0_UPDATE_CD="AP",XXXXXXXXX
@pRUKE=dfgt@pRECTYPE="SBSB", @pGWID="1234", @pSBEL_MCTR_RSN="KX28", @pSBSB_9000_COLL=""
@pRUKE=dfgt@pRECTYPE="KBSG", @pKBSG_UPDATE_CD="IN", XXXXXXXXXXX
example :
Before : @pRUKE=dfgt@pRECTYPE="SMDR", @pCONFIG="Y" XXXXXXX
@pRUKE=dfgt@pRECTYPE="SBSB", @pGWID="1234", @pSBEL_MCTR_RSN="KX28", @pSBSB_9000_COLL=""
@pRUKE=dfgt@pRECTYPE="KBSG", @pKBSG_UPDATE_CD="IN", XXXXXXXXXXX
@pRUKE=dfgt@pRECTYPE="SBEL", @pSBEL_EFF_DT="01/01/2017", @pCSPI_ID="JKOX0001", @pSBEL_FI="A"
After:
@pRUKE=dfgt@pRECTYPE="SMDR", @pCONFIG="Y" XXXXXXX
@pRUKE=dfgt@pRECTYPE="SBSB", @pGWID="1234", @pSBEL_MCTR_RSN="KX28", @pSBSB_9000_COLL=""
@pRUKE=dfgt@pRECTYPE="KBSG", @pKBSG_UPDATE_CD="IN", XXXXXXXXXXX
@pRUKE=dfgt@pRECTYPE="SBEL", @pSBEL_EFF_DT="01/01/2017", @pCSPI_ID="JKOX0001", @pSBEL_FI="A", @pSBEL_MCTR_RSN="KX28"
if after SBSB, if there is no SBEL, then that SBSB can be ignored.
what i did is egrep -n "pRECTYPE="SBSB"|pRECTYPE="SBEL"" filename | sed '$!N;/pRECTYPE="SBEL"/P;D' | awk -F: '{print $1}' | awk 'NR%2{printf "%s,",$0;next;}1' > 4.txt;
by this i will get the line number eg: 2,4 17,19
line 9 12 14 will be ignored
while read line do
...ANSWER
Answered 2021-Jun-15 at 20:47For performance, you need to really limit how many external tools you invoke inside a loop in a shell script.
This requires GNU awk:
QUESTION
Is it possible to send API response without body using Plumber? Here is what I tried:
...ANSWER
Answered 2021-Jun-15 at 18:45By default plumber
is trying to send a valid JSON response. If that's not what you want, change the serialize to something like text and return an empty string
QUESTION
Ansible 2.11.0
I have a shell script that accepts 2 parameters that I want to run on a Windows host, but want to run it inside git-bash.exe
. I've tried this,
ANSWER
Answered 2021-Jun-15 at 17:47be aware I don't have a Windows machine against which to try this, so it's just "best effort"
As best I can tell, your problem is because you are trying to recreate the behavior of win_shell
by "manually" invoking that improperly quoted cmd.exe /c
business, ending up with cmd.exe /c "cmd.exe /c whatever"
; dialing up the ansible verbosity -vv
could confirm or deny that pattern
Also, the win_shell
docs say to use win_command:
unless you have a shell redirect need, which as written your task does not.
QUESTION
I am trying to download a file that i have uploaded in the my uploads
folder. The directory is like this:
ANSWER
Answered 2021-Jun-15 at 16:08echo $filepath;
QUESTION
In my app I want the user to mention how many columns he wants for the table and then enter the data for those columns and create a table with those values. Here is what I have:
...ANSWER
Answered 2021-Jun-15 at 15:01You can name your input-fields as an array like:
And get it with
var_dump($_POST['col_name']);
In your example you could do like this:
QUESTION
I have a code snippet below
...ANSWER
Answered 2021-Jun-15 at 14:26ctr=0
for ptr in "${values[@]}"
do
az pipelines variable-group variable update --group-id 1543 --name "${ptr}" --value "${az_create_options[$ctr]}" #First element read and value updated
az pipelines variable-group variable update --group-id 1543 --name "${ptr}" --value "${az_create_options[$ctr]}" #Second element read and value updated
ctr=$((ctr+1))
done
QUESTION
Hello my favorite people!
I am trying to send an email after submitting a form, with the AUTO INCREMENT number attached to the email because the AUTO INCREMENT number is the clients Job Card Reference Number. So far i have successfully created the insert script which inserts the data into the database perfectly, and also sends the email too. But does not attach the AUTO INCREMENT number into the email. The INT(11) AUTO INCREMENT primary key is "job_number" in my MySQL database.
Here is my insert page:
...ANSWER
Answered 2021-Jun-15 at 09:58 $insertId = false;
if($insert_stmt->execute())
{
$insertId = $insert_stmt->insert_id;
$insertMsg="Created Successfully........sending email now";
}
if($insertId){
// do stuff with the insert id
}
QUESTION
I have a requirement which is as follows:
Variable Group A, has 7 set of key=value pairs Variable Group B, has 7 set of key=value pairs.
In both cases keys are the same, values are only different.
I am asking from the user, the value of be injected in variable group B, user provides me the variable group A name.
Code snippet to perform such update is as below:
...ANSWER
Answered 2021-Jun-15 at 13:07You wrongly used update command:
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