How to write content of several files into a single one in Unix?

up vote
0
down vote

favorite

Suppose in a directory there are some files like:

file1.txt  

file2.txt

file3.txt

file4

file5

fab

text1

I need to eliminate the files with the .txt extension and append the content of the remaining files having a file name started with file(file4, file5) to a single file.

I tried the below command, but it appends all 5 file content to a single file.

ls -ltr file*|grep -vE ".txt" | cat * > final

edited Nov 21 at 21:36

Rui F Ribeiro

38.2k1475125

asked Mar 2 '16 at 14:05

user159194

add a comment |

up vote
0
down vote

favorite

Suppose in a directory there are some files like:

file1.txt  

file2.txt

file3.txt

file4

file5

fab

text1

I need to eliminate the files with the .txt extension and append the content of the remaining files having a file name started with file(file4, file5) to a single file.

I tried the below command, but it appends all 5 file content to a single file.

ls -ltr file*|grep -vE ".txt" | cat * > final

edited Nov 21 at 21:36

Rui F Ribeiro

38.2k1475125

asked Mar 2 '16 at 14:05

user159194

add a comment |

up vote
0
down vote

favorite

Suppose in a directory there are some files like:

file1.txt  

file2.txt

file3.txt

file4

file5

fab

text1

I need to eliminate the files with the .txt extension and append the content of the remaining files having a file name started with file(file4, file5) to a single file.

I tried the below command, but it appends all 5 file content to a single file.

ls -ltr file*|grep -vE ".txt" | cat * > final

edited Nov 21 at 21:36

Rui F Ribeiro

38.2k1475125

asked Mar 2 '16 at 14:05

user159194

Suppose in a directory there are some files like:

file1.txt  

file2.txt

file3.txt

file4

file5

fab

text1

I need to eliminate the files with the .txt extension and append the content of the remaining files having a file name started with file(file4, file5) to a single file.

I tried the below command, but it appends all 5 file content to a single file.

ls -ltr file*|grep -vE ".txt" | cat * > final

shell

edited Nov 21 at 21:36

Rui F Ribeiro

38.2k1475125

asked Mar 2 '16 at 14:05

user159194

edited Nov 21 at 21:36

Rui F Ribeiro

38.2k1475125

asked Mar 2 '16 at 14:05

user159194

edited Nov 21 at 21:36

Rui F Ribeiro

38.2k1475125

edited Nov 21 at 21:36

Rui F Ribeiro

38.2k1475125

edited Nov 21 at 21:36

Rui F Ribeiro

38.2k1475125

asked Mar 2 '16 at 14:05

user159194

asked Mar 2 '16 at 14:05

user159194

asked Mar 2 '16 at 14:05

user159194

add a comment |

3 Answers
3

active

oldest

votes

up vote
2
down vote

If you have bash available, you can use the following:

shopt -s extglob

cat !(*.txt) > final

Or using zsh:

setopt extended_glob

cat ^*.txt > final

answered Mar 2 '16 at 14:13

jordanm

29.8k28192

add a comment |

up vote
0
down vote

find . ! -name '*.txt' | xargs cat >> final

answered Mar 2 '16 at 14:14

mazs

2,5521622

This version has a couple of downsides. 1) it's recursive, which may not be desired. 2) it will break on filenames that contain spaces. 3) the fact that it appends prevents running it twice and getting the same resulting file.
– jordanm
Mar 2 '16 at 14:16

you can use find with -maxdepth 1 -type f parameters
– mazs
Mar 2 '16 at 14:22

That works, but not all versions of find support -maxdepth and OP did not specify his OS.
– jordanm
Mar 2 '16 at 14:23

The solution using 'cat' is definitely better. On the other hand, the nice thing in Linux is that there are multiple ways of solving any issue.
– mazs
Mar 2 '16 at 14:40

add a comment |

up vote
0
down vote

Try this

#!/bin/bash



find . -name '*.txt' -exec rm {} +



for f in file*

do

    cat $f >> final_file

done

In one line without removing .txt files but ignoring them for the cat

$ find . -name 'file*' ! -name '*.txt' -exec cat {} ; > final

answered Mar 2 '16 at 15:00

tachomi

3,52731134

add a comment |

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3 Answers
3

active

oldest

votes

3 Answers
3

active

oldest

votes

up vote
2
down vote

If you have bash available, you can use the following:

shopt -s extglob

cat !(*.txt) > final

Or using zsh:

setopt extended_glob

cat ^*.txt > final

answered Mar 2 '16 at 14:13

jordanm

29.8k28192

add a comment |

up vote
2
down vote

If you have bash available, you can use the following:

shopt -s extglob

cat !(*.txt) > final

Or using zsh:

setopt extended_glob

cat ^*.txt > final

answered Mar 2 '16 at 14:13

jordanm

29.8k28192

add a comment |

up vote
2
down vote

If you have bash available, you can use the following:

shopt -s extglob

cat !(*.txt) > final

Or using zsh:

setopt extended_glob

cat ^*.txt > final

answered Mar 2 '16 at 14:13

jordanm

29.8k28192

If you have bash available, you can use the following:

shopt -s extglob

cat !(*.txt) > final

Or using zsh:

setopt extended_glob

cat ^*.txt > final

answered Mar 2 '16 at 14:13

jordanm

29.8k28192

answered Mar 2 '16 at 14:13

jordanm

29.8k28192

answered Mar 2 '16 at 14:13

jordanm

29.8k28192

answered Mar 2 '16 at 14:13

jordanm

29.8k28192

add a comment |

up vote
0
down vote

find . ! -name '*.txt' | xargs cat >> final

answered Mar 2 '16 at 14:14

mazs

2,5521622

This version has a couple of downsides. 1) it's recursive, which may not be desired. 2) it will break on filenames that contain spaces. 3) the fact that it appends prevents running it twice and getting the same resulting file.
– jordanm
Mar 2 '16 at 14:16

you can use find with -maxdepth 1 -type f parameters
– mazs
Mar 2 '16 at 14:22

That works, but not all versions of find support -maxdepth and OP did not specify his OS.
– jordanm
Mar 2 '16 at 14:23

The solution using 'cat' is definitely better. On the other hand, the nice thing in Linux is that there are multiple ways of solving any issue.
– mazs
Mar 2 '16 at 14:40

add a comment |

up vote
0
down vote

find . ! -name '*.txt' | xargs cat >> final

answered Mar 2 '16 at 14:14

mazs

2,5521622

This version has a couple of downsides. 1) it's recursive, which may not be desired. 2) it will break on filenames that contain spaces. 3) the fact that it appends prevents running it twice and getting the same resulting file.
– jordanm
Mar 2 '16 at 14:16

you can use find with -maxdepth 1 -type f parameters
– mazs
Mar 2 '16 at 14:22

That works, but not all versions of find support -maxdepth and OP did not specify his OS.
– jordanm
Mar 2 '16 at 14:23

The solution using 'cat' is definitely better. On the other hand, the nice thing in Linux is that there are multiple ways of solving any issue.
– mazs
Mar 2 '16 at 14:40

add a comment |

up vote
0
down vote

find . ! -name '*.txt' | xargs cat >> final

answered Mar 2 '16 at 14:14

mazs

2,5521622

find . ! -name '*.txt' | xargs cat >> final

answered Mar 2 '16 at 14:14

mazs

2,5521622

answered Mar 2 '16 at 14:14

mazs

2,5521622

answered Mar 2 '16 at 14:14

mazs

2,5521622

answered Mar 2 '16 at 14:14

mazs

2,5521622

This version has a couple of downsides. 1) it's recursive, which may not be desired. 2) it will break on filenames that contain spaces. 3) the fact that it appends prevents running it twice and getting the same resulting file.
– jordanm
Mar 2 '16 at 14:16

you can use find with -maxdepth 1 -type f parameters
– mazs
Mar 2 '16 at 14:22

That works, but not all versions of find support -maxdepth and OP did not specify his OS.
– jordanm
Mar 2 '16 at 14:23

The solution using 'cat' is definitely better. On the other hand, the nice thing in Linux is that there are multiple ways of solving any issue.
– mazs
Mar 2 '16 at 14:40

add a comment |

This version has a couple of downsides. 1) it's recursive, which may not be desired. 2) it will break on filenames that contain spaces. 3) the fact that it appends prevents running it twice and getting the same resulting file.
– jordanm
Mar 2 '16 at 14:16

you can use find with -maxdepth 1 -type f parameters
– mazs
Mar 2 '16 at 14:22

That works, but not all versions of find support -maxdepth and OP did not specify his OS.
– jordanm
Mar 2 '16 at 14:23

The solution using 'cat' is definitely better. On the other hand, the nice thing in Linux is that there are multiple ways of solving any issue.
– mazs
Mar 2 '16 at 14:40

This version has a couple of downsides. 1) it's recursive, which may not be desired. 2) it will break on filenames that contain spaces. 3) the fact that it appends prevents running it twice and getting the same resulting file.
– jordanm
Mar 2 '16 at 14:16

you can use find with -maxdepth 1 -type f parameters
– mazs
Mar 2 '16 at 14:22

That works, but not all versions of find support -maxdepth and OP did not specify his OS.
– jordanm
Mar 2 '16 at 14:23

The solution using 'cat' is definitely better. On the other hand, the nice thing in Linux is that there are multiple ways of solving any issue.
– mazs
Mar 2 '16 at 14:40

add a comment |

up vote
0
down vote

Try this

#!/bin/bash



find . -name '*.txt' -exec rm {} +



for f in file*

do

    cat $f >> final_file

done

In one line without removing .txt files but ignoring them for the cat

$ find . -name 'file*' ! -name '*.txt' -exec cat {} ; > final

answered Mar 2 '16 at 15:00

tachomi

3,52731134

add a comment |

up vote
0
down vote

Try this

#!/bin/bash



find . -name '*.txt' -exec rm {} +



for f in file*

do

    cat $f >> final_file

done

In one line without removing .txt files but ignoring them for the cat

$ find . -name 'file*' ! -name '*.txt' -exec cat {} ; > final

answered Mar 2 '16 at 15:00

tachomi

3,52731134

add a comment |

up vote
0
down vote

Try this

#!/bin/bash



find . -name '*.txt' -exec rm {} +



for f in file*

do

    cat $f >> final_file

done

In one line without removing .txt files but ignoring them for the cat

$ find . -name 'file*' ! -name '*.txt' -exec cat {} ; > final

answered Mar 2 '16 at 15:00

tachomi

3,52731134

Try this

#!/bin/bash



find . -name '*.txt' -exec rm {} +



for f in file*

do

    cat $f >> final_file

done

In one line without removing .txt files but ignoring them for the cat

$ find . -name 'file*' ! -name '*.txt' -exec cat {} ; > final

answered Mar 2 '16 at 15:00

tachomi

3,52731134

answered Mar 2 '16 at 15:00

tachomi

3,52731134

answered Mar 2 '16 at 15:00

tachomi

3,52731134

answered Mar 2 '16 at 15:00

tachomi

3,52731134

add a comment |

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