Recursively following link and running grep on any pages

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0















I'm trying to grep through some logs at the url below to look for a specific username. However I'm getting no results, it just runs without stopping.



grepfor="username"
urls=("https://tgstation13.org/parsed-logs/terry/data/logs/2019/01")
while [ $#urls[@] -ne 0 ]
do
content="$(curl -s "$url[0]")"
echo "$content" | grep "$grepfor"
delete=($urls[0])
add=(`echo "$content" | grep -Po '(?<=href=")[^"]*'`)
urls=( "$urls[@]/$delete" "$add[@]" )
done









share|improve this question
























  • Don't correct code in the question. It invalidates the answers.

    – Kusalananda
    Feb 7 at 19:57











  • Sure thing, thank you

    – Shard
    Feb 7 at 20:00











  • I've figured out my next fuckup, the links I'm adding are relative, i need to prepend urls[0] to the start of each. Also the url is missing a / at the end and I'm not following redirects

    – Shard
    Feb 7 at 20:00
















0















I'm trying to grep through some logs at the url below to look for a specific username. However I'm getting no results, it just runs without stopping.



grepfor="username"
urls=("https://tgstation13.org/parsed-logs/terry/data/logs/2019/01")
while [ $#urls[@] -ne 0 ]
do
content="$(curl -s "$url[0]")"
echo "$content" | grep "$grepfor"
delete=($urls[0])
add=(`echo "$content" | grep -Po '(?<=href=")[^"]*'`)
urls=( "$urls[@]/$delete" "$add[@]" )
done









share|improve this question
























  • Don't correct code in the question. It invalidates the answers.

    – Kusalananda
    Feb 7 at 19:57











  • Sure thing, thank you

    – Shard
    Feb 7 at 20:00











  • I've figured out my next fuckup, the links I'm adding are relative, i need to prepend urls[0] to the start of each. Also the url is missing a / at the end and I'm not following redirects

    – Shard
    Feb 7 at 20:00














0












0








0








I'm trying to grep through some logs at the url below to look for a specific username. However I'm getting no results, it just runs without stopping.



grepfor="username"
urls=("https://tgstation13.org/parsed-logs/terry/data/logs/2019/01")
while [ $#urls[@] -ne 0 ]
do
content="$(curl -s "$url[0]")"
echo "$content" | grep "$grepfor"
delete=($urls[0])
add=(`echo "$content" | grep -Po '(?<=href=")[^"]*'`)
urls=( "$urls[@]/$delete" "$add[@]" )
done









share|improve this question
















I'm trying to grep through some logs at the url below to look for a specific username. However I'm getting no results, it just runs without stopping.



grepfor="username"
urls=("https://tgstation13.org/parsed-logs/terry/data/logs/2019/01")
while [ $#urls[@] -ne 0 ]
do
content="$(curl -s "$url[0]")"
echo "$content" | grep "$grepfor"
delete=($urls[0])
add=(`echo "$content" | grep -Po '(?<=href=")[^"]*'`)
urls=( "$urls[@]/$delete" "$add[@]" )
done






bash grep curl






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Feb 7 at 19:57









Kusalananda

133k17254417




133k17254417










asked Feb 7 at 19:40









ShardShard

1137




1137












  • Don't correct code in the question. It invalidates the answers.

    – Kusalananda
    Feb 7 at 19:57











  • Sure thing, thank you

    – Shard
    Feb 7 at 20:00











  • I've figured out my next fuckup, the links I'm adding are relative, i need to prepend urls[0] to the start of each. Also the url is missing a / at the end and I'm not following redirects

    – Shard
    Feb 7 at 20:00


















  • Don't correct code in the question. It invalidates the answers.

    – Kusalananda
    Feb 7 at 19:57











  • Sure thing, thank you

    – Shard
    Feb 7 at 20:00











  • I've figured out my next fuckup, the links I'm adding are relative, i need to prepend urls[0] to the start of each. Also the url is missing a / at the end and I'm not following redirects

    – Shard
    Feb 7 at 20:00

















Don't correct code in the question. It invalidates the answers.

– Kusalananda
Feb 7 at 19:57





Don't correct code in the question. It invalidates the answers.

– Kusalananda
Feb 7 at 19:57













Sure thing, thank you

– Shard
Feb 7 at 20:00





Sure thing, thank you

– Shard
Feb 7 at 20:00













I've figured out my next fuckup, the links I'm adding are relative, i need to prepend urls[0] to the start of each. Also the url is missing a / at the end and I'm not following redirects

– Shard
Feb 7 at 20:00






I've figured out my next fuckup, the links I'm adding are relative, i need to prepend urls[0] to the start of each. Also the url is missing a / at the end and I'm not following redirects

– Shard
Feb 7 at 20:00











1 Answer
1






active

oldest

votes


















2














Use "$urls[0]" for the first element of the urls array, not $urls[0].



To delete the first element of urls and to add the add array to the end, use



urls=( "$urls[@]:1" "$add[@]" )


Always quote every expansion, even $#urls[@].



I haven't looked too closely at your curls and greps, but use



printf '%sn' "$content"


if you want to be sure that you preserve backslashes in the data.



Related:



  • When is double-quoting necessary?

  • Why is printf better than echo?





share|improve this answer























  • Thanks, I'll implement those changes. However even if I change $grepfor to a string which is on the first url I can't get it to grep out that line

    – Shard
    Feb 7 at 19:51











  • @Shard Well, the curl call previous to that line will look for an url ending in [0], so fix that first. Also $url is unset there (it should be "$urls[0]").

    – Kusalananda
    Feb 7 at 19:52












  • Ahh thanks that was a big fuck up, I've implemented the changed code into the question. The code is now terminating near immediately. I assume new urls found from the first link aren't correctly being added to $urls

    – Shard
    Feb 7 at 19:56










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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









2














Use "$urls[0]" for the first element of the urls array, not $urls[0].



To delete the first element of urls and to add the add array to the end, use



urls=( "$urls[@]:1" "$add[@]" )


Always quote every expansion, even $#urls[@].



I haven't looked too closely at your curls and greps, but use



printf '%sn' "$content"


if you want to be sure that you preserve backslashes in the data.



Related:



  • When is double-quoting necessary?

  • Why is printf better than echo?





share|improve this answer























  • Thanks, I'll implement those changes. However even if I change $grepfor to a string which is on the first url I can't get it to grep out that line

    – Shard
    Feb 7 at 19:51











  • @Shard Well, the curl call previous to that line will look for an url ending in [0], so fix that first. Also $url is unset there (it should be "$urls[0]").

    – Kusalananda
    Feb 7 at 19:52












  • Ahh thanks that was a big fuck up, I've implemented the changed code into the question. The code is now terminating near immediately. I assume new urls found from the first link aren't correctly being added to $urls

    – Shard
    Feb 7 at 19:56















2














Use "$urls[0]" for the first element of the urls array, not $urls[0].



To delete the first element of urls and to add the add array to the end, use



urls=( "$urls[@]:1" "$add[@]" )


Always quote every expansion, even $#urls[@].



I haven't looked too closely at your curls and greps, but use



printf '%sn' "$content"


if you want to be sure that you preserve backslashes in the data.



Related:



  • When is double-quoting necessary?

  • Why is printf better than echo?





share|improve this answer























  • Thanks, I'll implement those changes. However even if I change $grepfor to a string which is on the first url I can't get it to grep out that line

    – Shard
    Feb 7 at 19:51











  • @Shard Well, the curl call previous to that line will look for an url ending in [0], so fix that first. Also $url is unset there (it should be "$urls[0]").

    – Kusalananda
    Feb 7 at 19:52












  • Ahh thanks that was a big fuck up, I've implemented the changed code into the question. The code is now terminating near immediately. I assume new urls found from the first link aren't correctly being added to $urls

    – Shard
    Feb 7 at 19:56













2












2








2







Use "$urls[0]" for the first element of the urls array, not $urls[0].



To delete the first element of urls and to add the add array to the end, use



urls=( "$urls[@]:1" "$add[@]" )


Always quote every expansion, even $#urls[@].



I haven't looked too closely at your curls and greps, but use



printf '%sn' "$content"


if you want to be sure that you preserve backslashes in the data.



Related:



  • When is double-quoting necessary?

  • Why is printf better than echo?





share|improve this answer













Use "$urls[0]" for the first element of the urls array, not $urls[0].



To delete the first element of urls and to add the add array to the end, use



urls=( "$urls[@]:1" "$add[@]" )


Always quote every expansion, even $#urls[@].



I haven't looked too closely at your curls and greps, but use



printf '%sn' "$content"


if you want to be sure that you preserve backslashes in the data.



Related:



  • When is double-quoting necessary?

  • Why is printf better than echo?






share|improve this answer












share|improve this answer



share|improve this answer










answered Feb 7 at 19:47









KusalanandaKusalananda

133k17254417




133k17254417












  • Thanks, I'll implement those changes. However even if I change $grepfor to a string which is on the first url I can't get it to grep out that line

    – Shard
    Feb 7 at 19:51











  • @Shard Well, the curl call previous to that line will look for an url ending in [0], so fix that first. Also $url is unset there (it should be "$urls[0]").

    – Kusalananda
    Feb 7 at 19:52












  • Ahh thanks that was a big fuck up, I've implemented the changed code into the question. The code is now terminating near immediately. I assume new urls found from the first link aren't correctly being added to $urls

    – Shard
    Feb 7 at 19:56

















  • Thanks, I'll implement those changes. However even if I change $grepfor to a string which is on the first url I can't get it to grep out that line

    – Shard
    Feb 7 at 19:51











  • @Shard Well, the curl call previous to that line will look for an url ending in [0], so fix that first. Also $url is unset there (it should be "$urls[0]").

    – Kusalananda
    Feb 7 at 19:52












  • Ahh thanks that was a big fuck up, I've implemented the changed code into the question. The code is now terminating near immediately. I assume new urls found from the first link aren't correctly being added to $urls

    – Shard
    Feb 7 at 19:56
















Thanks, I'll implement those changes. However even if I change $grepfor to a string which is on the first url I can't get it to grep out that line

– Shard
Feb 7 at 19:51





Thanks, I'll implement those changes. However even if I change $grepfor to a string which is on the first url I can't get it to grep out that line

– Shard
Feb 7 at 19:51













@Shard Well, the curl call previous to that line will look for an url ending in [0], so fix that first. Also $url is unset there (it should be "$urls[0]").

– Kusalananda
Feb 7 at 19:52






@Shard Well, the curl call previous to that line will look for an url ending in [0], so fix that first. Also $url is unset there (it should be "$urls[0]").

– Kusalananda
Feb 7 at 19:52














Ahh thanks that was a big fuck up, I've implemented the changed code into the question. The code is now terminating near immediately. I assume new urls found from the first link aren't correctly being added to $urls

– Shard
Feb 7 at 19:56





Ahh thanks that was a big fuck up, I've implemented the changed code into the question. The code is now terminating near immediately. I assume new urls found from the first link aren't correctly being added to $urls

– Shard
Feb 7 at 19:56

















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