How to insert a line in a file after certain bytesAlign a hex text file at 9 bytes each lineHow to tail/grep/awk the last N bytes of a file, rather than linesFile size after cutThe fastest way to remove a string in a variableAlter certain bytes in many filesHow to store endless stream to file?How to choose multiple lines from one input and save them to different files at once?Sed placing text after a certain linetail -f, insert line break after log is idle for 3 seconds?Hmac with openssl's command line tool with a key that might contain null bytes
Can I negotiate a patent idea for a raise, under French law?
Are E natural minor and B harmonic minor related?
Do black holes violate the conservation of mass?
Do Cubics always have one real root?
Graphic representation of a triangle using ArrayPlot
Strange opamp's output impedance in spice
How to write a chaotic neutral protagonist and prevent my readers from thinking they are evil?
Why do we say 'Pairwise Disjoint', rather than 'Disjoint'?
Logistic regression BIC: what's the right N?
Short scifi story where reproductive organs are converted to produce "materials", pregnant protagonist is "found fit" to be a mother
Why is there an extra space when I type "ls" on the Desktop?
Factor Rings over Finite Fields
Would those living in a "perfect society" not understand satire
Is it appropriate to ask a former professor to order a book for me through an inter-library loan?
Help! My Character is too much for her story!
School performs periodic password audits. Is my password compromised?
Is there a way to make cleveref distinguish two environments with the same counter?
Is divide-by-zero a security vulnerability?
Why aren't there more Gauls like Obelix?
Why does Central Limit Theorem break down in my simulation?
How can a demon take control of a human body during REM sleep?
Difference between `nmap local-IP-address` and `nmap localhost`
How do spaceships determine each other's mass in space?
I reported the illegal activity of my boss to his boss. My boss found out. Now I am being punished. What should I do?
How to insert a line in a file after certain bytes
Align a hex text file at 9 bytes each lineHow to tail/grep/awk the last N bytes of a file, rather than linesFile size after cutThe fastest way to remove a string in a variableAlter certain bytes in many filesHow to store endless stream to file?How to choose multiple lines from one input and save them to different files at once?Sed placing text after a certain linetail -f, insert line break after log is idle for 3 seconds?Hmac with openssl's command line tool with a key that might contain null bytes
Let's say I have a large file (several gigs) with n lines in it. I would like to add/insert a line after k bytes offset, from the beginning of the file, then what would be the fastest way to achieve that?
linux bash cut tail
asked 5 mins ago
khankhan
1112
add a comment |
Let's say I have a large file (several gigs) with n lines in it. I would like to add/insert a line after k bytes offset, from the beginning of the file, then what would be the fastest way to achieve that?
linux bash cut tail
asked 5 mins ago
khankhan
1112
what did you try until now?
– yael
3 mins ago
please let us know why you want to do it?
– yael
2 mins ago
I was thinking of trying something likehead -c k file > temp.log; echo 'some datan' >> temp.log; tail -c +(k+1) file > temp.log; mv temp.log file;but not sure if its the best way to do this simple task..
– khan
1 min ago
add a comment |
Let's say I have a large file (several gigs) with n lines in it. I would like to add/insert a line after k bytes offset, from the beginning of the file, then what would be the fastest way to achieve that?
linux bash cut tail
asked 5 mins ago
khankhan
1112
Let's say I have a large file (several gigs) with n lines in it. I would like to add/insert a line after k bytes offset, from the beginning of the file, then what would be the fastest way to achieve that?
linux bash cut tail
linux bash cut tail
asked 5 mins ago
khankhan
1112
asked 5 mins ago
khankhan
1112
asked 5 mins ago
khankhan
1112
asked 5 mins ago
khankhan
1112
asked 5 mins ago
khankhan
1112
1112
what did you try until now?
– yael
3 mins ago
please let us know why you want to do it?
– yael
2 mins ago
I was thinking of trying something likehead -c k file > temp.log; echo 'some datan' >> temp.log; tail -c +(k+1) file > temp.log; mv temp.log file;but not sure if its the best way to do this simple task..
– khan
1 min ago
add a comment |
what did you try until now?
– yael
3 mins ago
please let us know why you want to do it?
– yael
2 mins ago
I was thinking of trying something likehead -c k file > temp.log; echo 'some datan' >> temp.log; tail -c +(k+1) file > temp.log; mv temp.log file;but not sure if its the best way to do this simple task..
– khan
1 min ago
what did you try until now?
– yael
3 mins ago
what did you try until now?
– yael
3 mins ago
please let us know why you want to do it?
– yael
2 mins ago
please let us know why you want to do it?
– yael
2 mins ago
I was thinking of trying something like
head -c k file > temp.log; echo 'some datan' >> temp.log; tail -c +(k+1) file > temp.log; mv temp.log file; but not sure if its the best way to do this simple task..– khan
1 min ago
I was thinking of trying something like
head -c k file > temp.log; echo 'some datan' >> temp.log; tail -c +(k+1) file > temp.log; mv temp.log file; but not sure if its the best way to do this simple task..– khan
1 min ago
add a comment |
0
active
oldest
votes
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',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f505421%2fhow-to-insert-a-line-in-a-file-after-certain-bytes%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Unix & Linux Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f505421%2fhow-to-insert-a-line-in-a-file-after-certain-bytes%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
what did you try until now?
– yael
3 mins ago
please let us know why you want to do it?
– yael
2 mins ago
I was thinking of trying something like
head -c k file > temp.log; echo 'some datan' >> temp.log; tail -c +(k+1) file > temp.log; mv temp.log file;but not sure if its the best way to do this simple task..– khan
1 min ago