I have a bash script that finds files with particular extension and then pass the files into a function that checks every line in the file for only files that contain a library imported. For example:
function testing() {
while IFS='' read -r line; do
if [[ "$line" =~ .*log\" ]]; then
echo "log is imported in the file" $1
break
else
echo "log is not imported in the file" $1
break
fi
done < <(sed -n '/import (/,/)/p' "$1")
}
function main() {
for file in $(find "$1" -name "*.go"); do
if [[ $file == *test.go ]]; then
:
else
var1=$(testing $file)
echo "$var1"
fi
done;
}
main $1
The problem is the script works without the else block in the testing function but with the introduction of the else block in the testing function it just defaults to echoing the log is not imported in the file blah even if log is used in some of the files.
Any idea(s) on what is the problem?
Thanks.
Here is a sample input file:
package main
import (
"fmt"
"io/ioutil"
logger "log"
"net/http"
)
type webPage struct {
url string
body []byte
err error
}
...
And the output is basically to echo if log is imported or not.
You need to rewrite the logic of your testing function as it will only test the first line of the file. Indeed, each branch of the if [[ "$line" =~ .*log\" ]] has a break statement, so in practice, a break is reached whenever the first line is read.
Related
I want to validate a string which should only be Alphabets (Capital/Small). I can do it in Linux easily using Bash or Shell, but not able to validate in Busybox (OpenWRT). My piece of code is
...
#!/bin/sh
. /usr/share/libubox/jshn.sh
Info=$(cat /root/Info.json)
json_load "$Info"
json_get_var value plmn_description
echo "$value"
if [[ "$value" == [a-zA-Z] ]] ;then
echo "Valid"
else
echo "Invalid information"
fi
...
You can use case conditional construct like this:
case "$value" in
*[!a-zA-Z]*) echo invalid information ;;
*) echo valid
esac
Using Busybox awk:
$ busybox awk '{ # using busybox awk
for(i=1;i<NF;i++) # iterate all json record fields (not the last, thou)
if($i=="\"plmn_description\":" && $(i+1)~/^\"[a-zA-Z]+\",?$/) {
ret="Valid" # if "plmn_description": is followed by "alphabets"
exit # exit for performance
}
}
END {
print (ret?ret:"Invalid") # output Valid or Invalid
}' Info.json # process the json file
Output:
Valid
Below is some code I have written for my ever growing bird-related chat bot.
If I use the mIRC consolse, I can execute the alias blocks (eg. //fchirp [user] ), but for some reason, the bot doesn't acknowledge somebody typing "!chirp" from the main chat window. It doesn't even execute the first //echo statement in the on-text-event.
The weirdest part is: this code worked before and I've been using it regularly. I haven't changed any part of what is shown here aside from the //echo statements which I use for debugging.
addWorms and giveWorms are both aliases I wrote and function correctly on their own. The main issue I'm running into is get the bot to do anything at all when someone types"!chirp". (It should be noted that other unrelated on-text-events earlier in the code work just fine with identical syntax.)
alias fchirp {
/writeini chirp.ini $1 First $adate
/writeini chirp.ini $1 Last $adate
/writeini chirp.ini $1 Count 1
msg $chan /w $1 Welcome to the Nest! Thanks for checking in! :D
addWorms $1
msg $chan /w $1 Type !worms to see how many you have!
//echo -a first chirp
}
alias chirp {
var %a $readini(chirp.ini, $1, Count)
var %count $calc( %a + 1 )
if ( $readini(worms.ini, $1, Breed) == $null ) {
addWorms $1
//echo -a addWorms done
}
if ( $readini(chirp.ini, $1, Last) === $adate ) { msg $chan /w $nick You've already checked in today! BabyRage | halt }
/writeini chirp.ini $1 Last $adate
/writeini chirp.ini $1 Count %count
//echo -a last/count updated
if ( $calc( $readini(chirp.ini, $1, Count) % 5 ) == 0 ) {
giveWorms $1 10
msg $chan /w $1 Welcome back! Lucky day!
}
else {
giveWorms $1 5
msg $chan /w $1 Welcome back! Here's your worms! Don't forget to !hunt ! ^_^
}
//echo -a giveWorms
}
on *:TEXT:!chirp:#: {
//echo -a acknowledged
if ( $readini(chirp.ini, $nick, First) != $null ) {
//echo -a true
chirp $nick
}
else {
//echo -a false
fchirp $nick
}
msg $chan /w $nick Don't forget to !hunt for worms! :D
}
The Event catching can be interfere by two main reasons.
Error
You have an error above your code on the same remote file. e.g. missing bracket or syntax error.
Other event already been captured
mIRC will not process event that already been matched by another pattern on the same file.
example.ini
ON *:TEXT:* dog *: echo -ag This will be called if we wrote the word dog in a sentence.
ON *:TEXT:*:#: echo -ag This will be called
ON *:TEXT:*test*: echo -ag This will never be called. Even if we wrote the word test in sentence.
You can merge your TEXT events to handle both actions, although if they aren't logic related, i would separated them for another remote file.
on *:TEXT:*:#: {
if ($1- == !chirp) {
; In here put your code.
}
; Another code over here..
; Count some stuff in here..
}
Remark: / is useless on alias/popup/remote code, and it is just for identifying text vs commands for console mIRC window.
I have a script that seeds my database, but I want to only redirect the stderr to the user.
I'm trying this:
echo "Seeding pokemon"
mongo mongodb_1:27017/pokemon pokemon.js > /dev/null 2>&1
But I'm not getting the error output.If I remove the redirection, the error outputs to my console.
Mongo Shell does not currently support separate output stream for errors.
Have can subscribe to SERVER-18643 to get notified once this is implemented.
Workaround suggested in the above ticket is to tag your output inside the Mongo Shell:
...
print("<STDOUT>")
print(multiline_json)
print("</STDOUT>")
print("<STDERR>")
print(multiline_json)
print("</STDERR>")
...
Then you can redirect to the correct output stream using the following script:
#!/bin/bash
COMMAND="mongo <args>"
OUTPUT=$(${COMMAND})
function STDERR {
cat - 1>&2
}
function STDFILE {
if [ -z "$1" ]; then
return
fi
cat - >> $1
}
WRITE_ERR=0;
for line in $OUTPUT; do
if [[ "$line" == "<STDERR>"* ]]; then
WRITE_ERR=1
continue
elif [[ "$line" == "</STDERR>"* ]]; then
WRITE_ERR=0
continue
fi
if [ "$WRITE_ERR" -eq "1" ]; then
printf "%s\n" "$line" | STDERR
else
printf "%s\n" "$line"
fi
done
I would like to delete all the file in a directory using only "rmdir" in perl script.
I'm trying to clean up a directory first and then trying to write file.
I know i can just use rmtree (" directory path"); but i'm unable to use that for FTP server (use Net::FTP;). and rmdir looks for empty directory.
i have tried "remove_tree" and "rm -rf". i do have read/write access to the server, but i'm unable to delete files.
Perl script:
finddepth (\&remove_dir, "$path");
rmdir ( "$path" ) or die ("Could not remove $path");
sub remove_dir
{
# for a path, this will be 0
if ( ! (stat("$File::Find::name"))[7] )
{ $ftp->rmdir("$File::Find::name"); }
else
{ $ftp->unlink("$File::Find::name"); }
}
$ftp->rmdir($dir_name, 1);
https://metacpan.org/pod/Net::FTP#rmdir-DIR-RECURSE
This is a shell script , How do I accomplish the same thing in Perl?
prfile=~/sqllib/db2profile
profile()
{
if [ -f $prfile ] && [ "$prfile" != "" ];
then
. $prfile
else
read -p "Enter a valid Profile : " prfile
profile
fi
}
profile
Here it checks for the profile file , if found it executes it with . $prfile else it again asks user for the proper profile file
Update
#!/usr/bin/perl
use strict;
use warnings;
my $profile = "$ENV{'HOME'}/sqllib/db2proile";
# default profile
while (not -e $profile) { # until we find an existing file
print "Enter a valid profile: ";
chomp($profile = <>); # read a new profile
}
qx(. $profile);
This worked. I want the home directory to be dynamic rather than hardcoded as they differ for different machines. I'm just trying to accomplish with Perl what I have achieved with shell.
If I understand your objectives, I don't think you can use perl to accomplish this because perl will be running as a child process and it can not change the environment of your shell (it's parent process). Maybe this would work for you (untested, off the cuff)?
prfile=~/sqllib/db2profile
if [ -s "$prfile" ] ; then
. "$prfile"
else
while true ; do
read -p "Enter a valid Profile : " prfile
if [ -s "$prfile" ] ; then
. "$prfile"
break;
fi
done
fi