prepending a command to the output of a pipe

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











up vote
0
down vote

favorite












The following command:



jq ". | .file.url_private_download" *json


generates many lines in the form of:



"https://files.slack.com/files-pri/T27SFGS2W-F78LH1DN2/download/img_1964.jpg?t=xoxe-243624297126-248125875671-248125975751-cee1f8d9a1"


What is the simplest way to prepend a wget command in front of each of these lines ?



Thank you very much






shell terminal pipe







share|improve this question























  • Do you want to execute the command or just prepend it with the string?
    – Kusalananda
    Sep 26 '17 at 17:10














up vote
0
down vote

favorite












The following command:



jq ". | .file.url_private_download" *json


generates many lines in the form of:



"https://files.slack.com/files-pri/T27SFGS2W-F78LH1DN2/download/img_1964.jpg?t=xoxe-243624297126-248125875671-248125975751-cee1f8d9a1"


What is the simplest way to prepend a wget command in front of each of these lines ?



Thank you very much






shell terminal pipe







share|improve this question























  • Do you want to execute the command or just prepend it with the string?
    – Kusalananda
    Sep 26 '17 at 17:10












up vote
0
down vote

favorite









up vote
0
down vote

favorite











The following command:



jq ". | .file.url_private_download" *json


generates many lines in the form of:



"https://files.slack.com/files-pri/T27SFGS2W-F78LH1DN2/download/img_1964.jpg?t=xoxe-243624297126-248125875671-248125975751-cee1f8d9a1"


What is the simplest way to prepend a wget command in front of each of these lines ?



Thank you very much






shell terminal pipe







share|improve this question















The following command:



jq ". | .file.url_private_download" *json


generates many lines in the form of:



"https://files.slack.com/files-pri/T27SFGS2W-F78LH1DN2/download/img_1964.jpg?t=xoxe-243624297126-248125875671-248125975751-cee1f8d9a1"


What is the simplest way to prepend a wget command in front of each of these lines ?



Thank you very much






shell terminal pipe




shell terminal pipe






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Sep 26 '17 at 17:06









Satō Katsura

10.7k11533




10.7k11533










asked Sep 26 '17 at 17:01









Robert Alexander

494




494











  • Do you want to execute the command or just prepend it with the string?
    – Kusalananda
    Sep 26 '17 at 17:10
















  • Do you want to execute the command or just prepend it with the string?
    – Kusalananda
    Sep 26 '17 at 17:10















Do you want to execute the command or just prepend it with the string?
– Kusalananda
Sep 26 '17 at 17:10




Do you want to execute the command or just prepend it with the string?
– Kusalananda
Sep 26 '17 at 17:10










2 Answers
2






active

oldest

votes

















up vote
1
down vote













You could use xargs to prepend the command you want to each line:



jq ". | .file.url_private_download" *json | xargs -n1 /bin/echo "wget"





share|improve this answer




















  • thank you, btw wget has an option to read URLs from a file (but curl on my Mac does not AFAIK)
    – Robert Alexander
    Sep 28 '17 at 8:13

















up vote
1
down vote













You could use sed to rewrite the start of each line:



jq ". | .file.url_private_download" *json | sed 's/^/wget /'


which "replaces" the start of the line with whatever the replacement pattern is, here wget



Or to wget all the files:



jq ". | .file.url_private_download" *json | wget -i -





share|improve this answer






















  • thank you, btw wget has an option to read URLs from a file (but curl on my Mac does not AFAIK)
    – Robert Alexander
    Sep 28 '17 at 8:13










  • @RobertAlexander right, isn't that what my second option uses?
    – Eric Renouf
    Sep 28 '17 at 10:10










  • Yes it is just what you indicated in your second example. Thank you.
    – Robert Alexander
    Sep 29 '17 at 12:46










Your Answer







StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "106"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
convertImagesToLinks: false,
noModals: false,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);













 

draft saved


draft discarded


















StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f394585%2fprepending-a-command-to-the-output-of-a-pipe%23new-answer', 'question_page');

);

Post as a guest

















2 Answers
2






active

oldest

votes








2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
1
down vote













You could use xargs to prepend the command you want to each line:



jq ". | .file.url_private_download" *json | xargs -n1 /bin/echo "wget"





share|improve this answer




















  • thank you, btw wget has an option to read URLs from a file (but curl on my Mac does not AFAIK)
    – Robert Alexander
    Sep 28 '17 at 8:13














up vote
1
down vote













You could use xargs to prepend the command you want to each line:



jq ". | .file.url_private_download" *json | xargs -n1 /bin/echo "wget"





share|improve this answer




















  • thank you, btw wget has an option to read URLs from a file (but curl on my Mac does not AFAIK)
    – Robert Alexander
    Sep 28 '17 at 8:13












up vote
1
down vote










up vote
1
down vote









You could use xargs to prepend the command you want to each line:



jq ". | .file.url_private_download" *json | xargs -n1 /bin/echo "wget"





share|improve this answer












You could use xargs to prepend the command you want to each line:



jq ". | .file.url_private_download" *json | xargs -n1 /bin/echo "wget"






share|improve this answer












share|improve this answer



share|improve this answer










answered Sep 26 '17 at 17:23









JRFerguson

9,17532329




9,17532329











  • thank you, btw wget has an option to read URLs from a file (but curl on my Mac does not AFAIK)
    – Robert Alexander
    Sep 28 '17 at 8:13
















  • thank you, btw wget has an option to read URLs from a file (but curl on my Mac does not AFAIK)
    – Robert Alexander
    Sep 28 '17 at 8:13















thank you, btw wget has an option to read URLs from a file (but curl on my Mac does not AFAIK)
– Robert Alexander
Sep 28 '17 at 8:13




thank you, btw wget has an option to read URLs from a file (but curl on my Mac does not AFAIK)
– Robert Alexander
Sep 28 '17 at 8:13












up vote
1
down vote













You could use sed to rewrite the start of each line:



jq ". | .file.url_private_download" *json | sed 's/^/wget /'


which "replaces" the start of the line with whatever the replacement pattern is, here wget



Or to wget all the files:



jq ". | .file.url_private_download" *json | wget -i -





share|improve this answer






















  • thank you, btw wget has an option to read URLs from a file (but curl on my Mac does not AFAIK)
    – Robert Alexander
    Sep 28 '17 at 8:13










  • @RobertAlexander right, isn't that what my second option uses?
    – Eric Renouf
    Sep 28 '17 at 10:10










  • Yes it is just what you indicated in your second example. Thank you.
    – Robert Alexander
    Sep 29 '17 at 12:46














up vote
1
down vote













You could use sed to rewrite the start of each line:



jq ". | .file.url_private_download" *json | sed 's/^/wget /'


which "replaces" the start of the line with whatever the replacement pattern is, here wget



Or to wget all the files:



jq ". | .file.url_private_download" *json | wget -i -





share|improve this answer






















  • thank you, btw wget has an option to read URLs from a file (but curl on my Mac does not AFAIK)
    – Robert Alexander
    Sep 28 '17 at 8:13










  • @RobertAlexander right, isn't that what my second option uses?
    – Eric Renouf
    Sep 28 '17 at 10:10










  • Yes it is just what you indicated in your second example. Thank you.
    – Robert Alexander
    Sep 29 '17 at 12:46












up vote
1
down vote










up vote
1
down vote









You could use sed to rewrite the start of each line:



jq ". | .file.url_private_download" *json | sed 's/^/wget /'


which "replaces" the start of the line with whatever the replacement pattern is, here wget



Or to wget all the files:



jq ". | .file.url_private_download" *json | wget -i -





share|improve this answer














You could use sed to rewrite the start of each line:



jq ". | .file.url_private_download" *json | sed 's/^/wget /'


which "replaces" the start of the line with whatever the replacement pattern is, here wget



Or to wget all the files:



jq ". | .file.url_private_download" *json | wget -i -






share|improve this answer














share|improve this answer



share|improve this answer








edited Sep 26 '17 at 18:29

























answered Sep 26 '17 at 17:09









Eric Renouf

12.9k42949




12.9k42949











  • thank you, btw wget has an option to read URLs from a file (but curl on my Mac does not AFAIK)
    – Robert Alexander
    Sep 28 '17 at 8:13










  • @RobertAlexander right, isn't that what my second option uses?
    – Eric Renouf
    Sep 28 '17 at 10:10










  • Yes it is just what you indicated in your second example. Thank you.
    – Robert Alexander
    Sep 29 '17 at 12:46
















  • thank you, btw wget has an option to read URLs from a file (but curl on my Mac does not AFAIK)
    – Robert Alexander
    Sep 28 '17 at 8:13










  • @RobertAlexander right, isn't that what my second option uses?
    – Eric Renouf
    Sep 28 '17 at 10:10










  • Yes it is just what you indicated in your second example. Thank you.
    – Robert Alexander
    Sep 29 '17 at 12:46















thank you, btw wget has an option to read URLs from a file (but curl on my Mac does not AFAIK)
– Robert Alexander
Sep 28 '17 at 8:13




thank you, btw wget has an option to read URLs from a file (but curl on my Mac does not AFAIK)
– Robert Alexander
Sep 28 '17 at 8:13












@RobertAlexander right, isn't that what my second option uses?
– Eric Renouf
Sep 28 '17 at 10:10




@RobertAlexander right, isn't that what my second option uses?
– Eric Renouf
Sep 28 '17 at 10:10












Yes it is just what you indicated in your second example. Thank you.
– Robert Alexander
Sep 29 '17 at 12:46




Yes it is just what you indicated in your second example. Thank you.
– Robert Alexander
Sep 29 '17 at 12:46

















 

draft saved


draft discarded















































 


draft saved


draft discarded














StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f394585%2fprepending-a-command-to-the-output-of-a-pipe%23new-answer', 'question_page');

);

Post as a guest
































































-

Popular posts from this blog

How to check contact read email or not when send email to Individual?

Image
Clash Royale CLAN TAG #URR8PPP up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this question asked Sep 26 at 0:12 ToanLuong 49 9 add a comment  |  up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this questi...
Read more

Displaying single band from multi-band raster using QGIS

Image
Clash Royale CLAN TAG #URR8PPP 1 How can I extract a single band from multi-band raster in QGIS? I have an remote sensed image which has 6 bands (including NDVI band), I want to display each band separately, but have no idea how to do. I have seen some questions similar here but none worked for me. The original image (has 6 bands) is: I want to display the band 6 which should be like this: But I tried gdal_translate, and couldn't get the correct result. What I have got is: qgis raster multi-band share | improve this question edited Mar 5 at 0:53 Summer asked Mar 4 at 6:42 Summer Summer 23 6 Is this any help gis.stackexchange.com/questions/220658/… ? if not gis.stackexchange.com/questions/62133/… might help. – Michael Stimson Mar 4 at 6:46 Thanks for answering but when I used gdal_translate, qgis showed that 'Error 4: Kayena.tif: No such file or directory". Would you know how to fi...
Read more

How many registers does an x86_64 CPU actually have?

Image
Clash Royale CLAN TAG #URR8PPP up vote 2 down vote favorite I am currently learning reverse engineering and am studying the flags register. I had in my mind that rflags was just another name for one of the 16 general purpose registers, for example rax or rbx . But it looks like rflags is actually an additional register. So that makes 17 registers in total... how many more could there be? I have spent at least an hour on this and found numerous different answers. The best answer so far is this, which says that there are 40 registers in total. 16 General Purpose Registers 2 Status Registers 6 Code Segment Registers 16 SSE Registers 8 FPU/MMX Registers But if I add that up, I get 48. Could anybody provide an official answer on how many registers an x86_64 CPU has (e.g. an Intel i7). Additionally, I have seen references to 'hardware' and 'architectural' registers. What are those registers and how many are there? register x86-64 share | improve this...
Read more