how to remove the header(firstline) in all files and in a directory. and the file names still remain same in...
Example: In my folder
C:usersinputfiles contains
file1.txt
file2.txt
file3.txt with headers.
Need to remove the header in each file and move the data into same file( File name should not change) by using shell script
shell
asked Nov 19 '18 at 6:48
Krishna RamKrishna Ram
63
add a comment |
Example: In my folder
C:usersinputfiles contains
file1.txt
file2.txt
file3.txt with headers.
Need to remove the header in each file and move the data into same file( File name should not change) by using shell script
shell
asked Nov 19 '18 at 6:48
Krishna RamKrishna Ram
63
add a comment |
Example: In my folder
C:usersinputfiles contains
file1.txt
file2.txt
file3.txt with headers.
Need to remove the header in each file and move the data into same file( File name should not change) by using shell script
shell
asked Nov 19 '18 at 6:48
Krishna RamKrishna Ram
63
Example: In my folder
C:usersinputfiles contains
file1.txt
file2.txt
file3.txt with headers.
Need to remove the header in each file and move the data into same file( File name should not change) by using shell script
shell
shell
asked Nov 19 '18 at 6:48
Krishna RamKrishna Ram
63
asked Nov 19 '18 at 6:48
Krishna RamKrishna Ram
63
asked Nov 19 '18 at 6:48
Krishna RamKrishna Ram
63
asked Nov 19 '18 at 6:48
Krishna RamKrishna Ram
63
asked Nov 19 '18 at 6:48
Krishna RamKrishna Ram
63
63
add a comment |
add a comment |
3 Answers
3
active
oldest
votes
sed and tail will help you with this.
No output redirection is required if sed is used.
sed -i '1d' filename
If you're using tail then use a intermediate tmp file to have the contents stored and then move that content of tmp file to the original file name.
tail -n +2 "$FILE" > "$FILE.tmp" && mv "$FILE.tmp" "$FILE"
tail will work faster compared to sed.
answered Nov 19 '18 at 7:06
Sekar RamuSekar Ramu
16419
add a comment |
Run This Command For Each of your File.
tail -n +2 "$FILE" > "$FILE.tmp" && mv "$FILE.tmp" "$FILE"
It should work.
edited Nov 19 '18 at 7:51
Sekar Ramu
16419
answered Nov 19 '18 at 7:03
Abhinandan prasadAbhinandan prasad
27229
This won't work since redirection takes place before the tail command and tail will work on a empty file. so if tail needs to be used then intermediate file has to be used.
– Sekar Ramu
Nov 19 '18 at 7:08
add a comment |
I assume the number of lines of the headers are all the same: 2
Give a try to this, to remove the lines before the 3 for each files with .txt suffix in current directory:
sed -n -i '3,$ p' *.txt
-i: modify each file directly
answered Nov 19 '18 at 10:29
Jay jargotJay jargot
1,9191410
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
sed and tail will help you with this.
No output redirection is required if sed is used.
sed -i '1d' filename
If you're using tail then use a intermediate tmp file to have the contents stored and then move that content of tmp file to the original file name.
tail -n +2 "$FILE" > "$FILE.tmp" && mv "$FILE.tmp" "$FILE"
tail will work faster compared to sed.
answered Nov 19 '18 at 7:06
Sekar RamuSekar Ramu
16419
add a comment |
sed and tail will help you with this.
No output redirection is required if sed is used.
sed -i '1d' filename
If you're using tail then use a intermediate tmp file to have the contents stored and then move that content of tmp file to the original file name.
tail -n +2 "$FILE" > "$FILE.tmp" && mv "$FILE.tmp" "$FILE"
tail will work faster compared to sed.
answered Nov 19 '18 at 7:06
Sekar RamuSekar Ramu
16419
add a comment |
sed and tail will help you with this.
No output redirection is required if sed is used.
sed -i '1d' filename
If you're using tail then use a intermediate tmp file to have the contents stored and then move that content of tmp file to the original file name.
tail -n +2 "$FILE" > "$FILE.tmp" && mv "$FILE.tmp" "$FILE"
tail will work faster compared to sed.
answered Nov 19 '18 at 7:06
Sekar RamuSekar Ramu
16419
sed and tail will help you with this.
No output redirection is required if sed is used.
sed -i '1d' filename
If you're using tail then use a intermediate tmp file to have the contents stored and then move that content of tmp file to the original file name.
tail -n +2 "$FILE" > "$FILE.tmp" && mv "$FILE.tmp" "$FILE"
tail will work faster compared to sed.
answered Nov 19 '18 at 7:06
Sekar RamuSekar Ramu
16419
answered Nov 19 '18 at 7:06
Sekar RamuSekar Ramu
16419
answered Nov 19 '18 at 7:06
Sekar RamuSekar Ramu
16419
answered Nov 19 '18 at 7:06
Sekar RamuSekar Ramu
16419
16419
add a comment |
add a comment |
Run This Command For Each of your File.
tail -n +2 "$FILE" > "$FILE.tmp" && mv "$FILE.tmp" "$FILE"
It should work.
edited Nov 19 '18 at 7:51
Sekar Ramu
16419
answered Nov 19 '18 at 7:03
Abhinandan prasadAbhinandan prasad
27229
This won't work since redirection takes place before the tail command and tail will work on a empty file. so if tail needs to be used then intermediate file has to be used.
– Sekar Ramu
Nov 19 '18 at 7:08
add a comment |
Run This Command For Each of your File.
tail -n +2 "$FILE" > "$FILE.tmp" && mv "$FILE.tmp" "$FILE"
It should work.
edited Nov 19 '18 at 7:51
Sekar Ramu
16419
answered Nov 19 '18 at 7:03
Abhinandan prasadAbhinandan prasad
27229
This won't work since redirection takes place before the tail command and tail will work on a empty file. so if tail needs to be used then intermediate file has to be used.
– Sekar Ramu
Nov 19 '18 at 7:08
add a comment |
Run This Command For Each of your File.
tail -n +2 "$FILE" > "$FILE.tmp" && mv "$FILE.tmp" "$FILE"
It should work.
edited Nov 19 '18 at 7:51
Sekar Ramu
16419
answered Nov 19 '18 at 7:03
Abhinandan prasadAbhinandan prasad
27229
Run This Command For Each of your File.
tail -n +2 "$FILE" > "$FILE.tmp" && mv "$FILE.tmp" "$FILE"
It should work.
edited Nov 19 '18 at 7:51
Sekar Ramu
16419
answered Nov 19 '18 at 7:03
Abhinandan prasadAbhinandan prasad
27229
edited Nov 19 '18 at 7:51
Sekar Ramu
16419
edited Nov 19 '18 at 7:51
Sekar Ramu
16419
edited Nov 19 '18 at 7:51
Sekar Ramu
16419
16419
answered Nov 19 '18 at 7:03
Abhinandan prasadAbhinandan prasad
27229
answered Nov 19 '18 at 7:03
Abhinandan prasadAbhinandan prasad
27229
answered Nov 19 '18 at 7:03
Abhinandan prasadAbhinandan prasad
27229
27229
This won't work since redirection takes place before the tail command and tail will work on a empty file. so if tail needs to be used then intermediate file has to be used.
– Sekar Ramu
Nov 19 '18 at 7:08
add a comment |
This won't work since redirection takes place before the tail command and tail will work on a empty file. so if tail needs to be used then intermediate file has to be used.
– Sekar Ramu
Nov 19 '18 at 7:08
This won't work since redirection takes place before the tail command and tail will work on a empty file. so if tail needs to be used then intermediate file has to be used.
– Sekar Ramu
Nov 19 '18 at 7:08
This won't work since redirection takes place before the tail command and tail will work on a empty file. so if tail needs to be used then intermediate file has to be used.
– Sekar Ramu
Nov 19 '18 at 7:08
add a comment |
I assume the number of lines of the headers are all the same: 2
Give a try to this, to remove the lines before the 3 for each files with .txt suffix in current directory:
sed -n -i '3,$ p' *.txt
-i: modify each file directly
answered Nov 19 '18 at 10:29
Jay jargotJay jargot
1,9191410
add a comment |
I assume the number of lines of the headers are all the same: 2
Give a try to this, to remove the lines before the 3 for each files with .txt suffix in current directory:
sed -n -i '3,$ p' *.txt
-i: modify each file directly
answered Nov 19 '18 at 10:29
Jay jargotJay jargot
1,9191410
add a comment |
I assume the number of lines of the headers are all the same: 2
Give a try to this, to remove the lines before the 3 for each files with .txt suffix in current directory:
sed -n -i '3,$ p' *.txt
-i: modify each file directly
answered Nov 19 '18 at 10:29
Jay jargotJay jargot
1,9191410
I assume the number of lines of the headers are all the same: 2
Give a try to this, to remove the lines before the 3 for each files with .txt suffix in current directory:
sed -n -i '3,$ p' *.txt
-i: modify each file directly
answered Nov 19 '18 at 10:29
Jay jargotJay jargot
1,9191410
answered Nov 19 '18 at 10:29
Jay jargotJay jargot
1,9191410
answered Nov 19 '18 at 10:29
Jay jargotJay jargot
1,9191410
answered Nov 19 '18 at 10:29
Jay jargotJay jargot
1,9191410
1,9191410
add a comment |
add a comment |
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