Post History
(Assuming your file names are portable, according to POSIX (https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282). If not, please read this for writing a more robust...
Answer
#8: Post edited
by
alx
·
2023-11-25T23:27:36Z (12 months ago)
- (Assuming your file names are portable, according to POSIX (<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282>). If not, please read this for writing a more robust script: <https://linux.codidact.com/posts/288310/289999#answer-289999>.)
- ```
- find . -type f \
- | grep '/chapter-[^/]*.xhtml$' \
- | while read f; do
- (
- head -n11 <"$f";
- sed -n '12p' <"$f" | titlecase;
- tail -n+13 <"$f";
- ) \
- | sponge "$f";
- done;
- ```
- - `find | grep` is for getting the file names.
- - `while read` starts a subshell for each file name, where the inner commands are run.
- - `() | sponge "$f"` will put everything printed by the `(...)` into the original file, atomically after all other commands have finished. sponge(1) is provided by the moreutils package.
- - `head -n11` prints the first 11 lines pristine.
- - `sed -n 12p` prints the 12th line pristine.
- - `titlecase`: Your script, assuming it reads stdin, and writes to stdout.
- - `tail -n+13` prints the remaining lines, starting at 13, pristine.
- ---
- Disclaimer: untested. If you provide some samples, I'll test it.
- ---
- If for some reason, you'd want to read a file only once, you could try writing a more complex filter using perl(1) (or maybe you manage to write it in sed(1)). That would remove the need for head(1) and tail(1).
- ```sh
$ echo -e 'ASDFOO BAR BAZQWERTY' \- | perl -p -e 's/(?<=[[:alpha:]])([[:upper:]])/\L\1/g if 2 .. 3';
- ASD
- Foo Bar Baz
- Qwe
- RTY
- ```
- (Assuming your file names are portable, according to POSIX (<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282>). If not, please read this for writing a more robust script: <https://linux.codidact.com/posts/288310/289999#answer-289999>.)
- ```
- find . -type f \
- | grep '/chapter-[^/]*.xhtml$' \
- | while read f; do
- (
- head -n11 <"$f";
- sed -n '12p' <"$f" | titlecase;
- tail -n+13 <"$f";
- ) \
- | sponge "$f";
- done;
- ```
- - `find | grep` is for getting the file names.
- - `while read` starts a subshell for each file name, where the inner commands are run.
- - `() | sponge "$f"` will put everything printed by the `(...)` into the original file, atomically after all other commands have finished. sponge(1) is provided by the moreutils package.
- - `head -n11` prints the first 11 lines pristine.
- - `sed -n 12p` prints the 12th line pristine.
- - `titlecase`: Your script, assuming it reads stdin, and writes to stdout.
- - `tail -n+13` prints the remaining lines, starting at 13, pristine.
- ---
- Disclaimer: untested. If you provide some samples, I'll test it.
- ---
- If for some reason, you'd want to read a file only once, you could try writing a more complex filter using perl(1) (or maybe you manage to write it in sed(1)). That would remove the need for head(1) and tail(1).
- ```sh
- $ printf 'ASD
- FOO BAR BAZ
- QWE
- RTY\n' \
- | perl -p -e 's/(?<=[[:alpha:]])([[:upper:]])/\L\1/g if 2 .. 3';
- ASD
- Foo Bar Baz
- Qwe
- RTY
- ```
#7: Post edited
by
alx
·
2023-11-25T23:26:34Z (12 months ago)
- (Assuming your file names are portable, according to POSIX (<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282>). If not, please read this for writing a more robust script: <https://linux.codidact.com/posts/288310/289999#answer-289999>.)
- ```
- find . -type f \
- | grep '/chapter-[^/]*.xhtml$' \
- | while read f; do
- (
- head -n11 <"$f";
- sed -n '12p' <"$f" | titlecase;
- tail -n+13 <"$f";
- ) \
- | sponge "$f";
- done;
- ```
- - `find | grep` is for getting the file names.
- - `while read` starts a subshell for each file name, where the inner commands are run.
- - `() | sponge "$f"` will put everything printed by the `(...)` into the original file, atomically after all other commands have finished. sponge(1) is provided by the moreutils package.
- - `head -n11` prints the first 11 lines pristine.
- - `sed -n 12p` prints the 12th line pristine.
- - `titlecase`: Your script, assuming it reads stdin, and writes to stdout.
- - `tail -n+13` prints the remaining lines, starting at 13, pristine.
- ---
- Disclaimer: untested. If you provide some samples, I'll test it.
- ---
- If for some reason, you'd want to read a file only once, you could try writing a more complex filter using perl(1) (or maybe you manage to write it in sed(1)). That would remove the need for head(1) and tail(1).
- ```sh
$ echo -e 'ASDFOO BAR BAZQWE' \| perl -p -e 's/(?<=[[:alpha:]])([[:upper:]])/\L\1/g if 2 .. 2';- ASD
- Foo Bar Baz
QWE- ```
- (Assuming your file names are portable, according to POSIX (<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282>). If not, please read this for writing a more robust script: <https://linux.codidact.com/posts/288310/289999#answer-289999>.)
- ```
- find . -type f \
- | grep '/chapter-[^/]*.xhtml$' \
- | while read f; do
- (
- head -n11 <"$f";
- sed -n '12p' <"$f" | titlecase;
- tail -n+13 <"$f";
- ) \
- | sponge "$f";
- done;
- ```
- - `find | grep` is for getting the file names.
- - `while read` starts a subshell for each file name, where the inner commands are run.
- - `() | sponge "$f"` will put everything printed by the `(...)` into the original file, atomically after all other commands have finished. sponge(1) is provided by the moreutils package.
- - `head -n11` prints the first 11 lines pristine.
- - `sed -n 12p` prints the 12th line pristine.
- - `titlecase`: Your script, assuming it reads stdin, and writes to stdout.
- - `tail -n+13` prints the remaining lines, starting at 13, pristine.
- ---
- Disclaimer: untested. If you provide some samples, I'll test it.
- ---
- If for some reason, you'd want to read a file only once, you could try writing a more complex filter using perl(1) (or maybe you manage to write it in sed(1)). That would remove the need for head(1) and tail(1).
- ```sh
- $ echo -e 'ASD
- FOO BAR BAZ
- QWE\nRTY' \
- | perl -p -e 's/(?<=[[:alpha:]])([[:upper:]])/\L\1/g if 2 .. 3';
- ASD
- Foo Bar Baz
- Qwe
- RTY
- ```
#6: Post edited
by
alx
·
2023-11-25T23:25:27Z (12 months ago)
- (Assuming your file names are portable, according to POSIX (<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282>). If not, please read this for writing a more robust script: <https://linux.codidact.com/posts/288310/289999#answer-289999>.)
- ```
- find . -type f \
- | grep '/chapter-[^/]*.xhtml$' \
- | while read f; do
- (
- head -n11 <"$f";
- sed -n '12p' <"$f" | titlecase;
- tail -n+13 <"$f";
- ) \
- | sponge "$f";
- done;
- ```
- - `find | grep` is for getting the file names.
- - `while read` starts a subshell for each file name, where the inner commands are run.
- - `() | sponge "$f"` will put everything printed by the `(...)` into the original file, atomically after all other commands have finished. sponge(1) is provided by the moreutils package.
- - `head -n11` prints the first 11 lines pristine.
- - `sed -n 12p` prints the 12th line pristine.
- - `titlecase`: Your script, assuming it reads stdin, and writes to stdout.
- - `tail -n+13` prints the remaining lines, starting at 13, pristine.
- ---
- Disclaimer: untested. If you provide some samples, I'll test it.
- ---
- If for some reason, you'd want to read a file only once, you could try writing a more complex filter using perl(1) (or maybe you manage to write it in sed(1)). That would remove the need for head(1) and tail(1).
- ```sh
- $ echo -e 'ASD\nFOO BAR BAZ\nQWE' \
| perl -p -e 's/(?<=[[:alpha:]])([[:upper:]])/\L\1/g if 2 .. 2'- ASD
- Foo Bar Baz
- QWE
- ```
- (Assuming your file names are portable, according to POSIX (<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282>). If not, please read this for writing a more robust script: <https://linux.codidact.com/posts/288310/289999#answer-289999>.)
- ```
- find . -type f \
- | grep '/chapter-[^/]*.xhtml$' \
- | while read f; do
- (
- head -n11 <"$f";
- sed -n '12p' <"$f" | titlecase;
- tail -n+13 <"$f";
- ) \
- | sponge "$f";
- done;
- ```
- - `find | grep` is for getting the file names.
- - `while read` starts a subshell for each file name, where the inner commands are run.
- - `() | sponge "$f"` will put everything printed by the `(...)` into the original file, atomically after all other commands have finished. sponge(1) is provided by the moreutils package.
- - `head -n11` prints the first 11 lines pristine.
- - `sed -n 12p` prints the 12th line pristine.
- - `titlecase`: Your script, assuming it reads stdin, and writes to stdout.
- - `tail -n+13` prints the remaining lines, starting at 13, pristine.
- ---
- Disclaimer: untested. If you provide some samples, I'll test it.
- ---
- If for some reason, you'd want to read a file only once, you could try writing a more complex filter using perl(1) (or maybe you manage to write it in sed(1)). That would remove the need for head(1) and tail(1).
- ```sh
- $ echo -e 'ASD\nFOO BAR BAZ\nQWE' \
- | perl -p -e 's/(?<=[[:alpha:]])([[:upper:]])/\L\1/g if 2 .. 2';
- ASD
- Foo Bar Baz
- QWE
- ```
#5: Post edited
by
alx
·
2023-11-25T23:25:07Z (12 months ago)
- (Assuming your file names are portable, according to POSIX (<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282>). If not, please read this for writing a more robust script: <https://linux.codidact.com/posts/288310/289999#answer-289999>.)
- ```
- find . -type f \
- | grep '/chapter-[^/]*.xhtml$' \
- | while read f; do
- (
- head -n11 <"$f";
- sed -n '12p' <"$f" | titlecase;
- tail -n+13 <"$f";
- ) \
- | sponge "$f";
- done;
- ```
- - `find | grep` is for getting the file names.
- - `while read` starts a subshell for each file name, where the inner commands are run.
- - `() | sponge "$f"` will put everything printed by the `(...)` into the original file, atomically after all other commands have finished. sponge(1) is provided by the moreutils package.
- - `head -n11` prints the first 11 lines pristine.
- - `sed -n 12p` prints the 12th line pristine.
- - `titlecase`: Your script, assuming it reads stdin, and writes to stdout.
- - `tail -n+13` prints the remaining lines, starting at 13, pristine.
- ---
- Disclaimer: untested. If you provide some samples, I'll test it.
- ---
- If for some reason, you'd want to read a file only once, you could try writing a more complex filter using perl(1) (or maybe you manage to write it in sed(1)). That would remove the need for head(1) and tail(1).
- ```sh
$ echo -e 'ASDFOO BAR BAZQWE' | perl -p -e 's/(?<=[[:alpha:]])([[:upper:]])/\L\1/g if 2 .. 2'- ASD
- Foo Bar Baz
- QWE
- ```
- (Assuming your file names are portable, according to POSIX (<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282>). If not, please read this for writing a more robust script: <https://linux.codidact.com/posts/288310/289999#answer-289999>.)
- ```
- find . -type f \
- | grep '/chapter-[^/]*.xhtml$' \
- | while read f; do
- (
- head -n11 <"$f";
- sed -n '12p' <"$f" | titlecase;
- tail -n+13 <"$f";
- ) \
- | sponge "$f";
- done;
- ```
- - `find | grep` is for getting the file names.
- - `while read` starts a subshell for each file name, where the inner commands are run.
- - `() | sponge "$f"` will put everything printed by the `(...)` into the original file, atomically after all other commands have finished. sponge(1) is provided by the moreutils package.
- - `head -n11` prints the first 11 lines pristine.
- - `sed -n 12p` prints the 12th line pristine.
- - `titlecase`: Your script, assuming it reads stdin, and writes to stdout.
- - `tail -n+13` prints the remaining lines, starting at 13, pristine.
- ---
- Disclaimer: untested. If you provide some samples, I'll test it.
- ---
- If for some reason, you'd want to read a file only once, you could try writing a more complex filter using perl(1) (or maybe you manage to write it in sed(1)). That would remove the need for head(1) and tail(1).
- ```sh
- $ echo -e 'ASD
- FOO BAR BAZ
- QWE' \
- | perl -p -e 's/(?<=[[:alpha:]])([[:upper:]])/\L\1/g if 2 .. 2'
- ASD
- Foo Bar Baz
- QWE
- ```
#4: Post edited
by
alx
·
2023-11-25T23:24:15Z (12 months ago)
- (Assuming your file names are portable, according to POSIX (<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282>). If not, please read this for writing a more robust script: <https://linux.codidact.com/posts/288310/289999#answer-289999>.)
- ```
- find . -type f \
- | grep '/chapter-[^/]*.xhtml$' \
- | while read f; do
- (
- head -n11 <"$f";
- sed -n '12p' <"$f" | titlecase;
- tail -n+13 <"$f";
- ) \
- | sponge "$f";
- done;
- ```
- - `find | grep` is for getting the file names.
- - `while read` starts a subshell for each file name, where the inner commands are run.
- - `() | sponge "$f"` will put everything printed by the `(...)` into the original file, atomically after all other commands have finished. sponge(1) is provided by the moreutils package.
- - `head -n11` prints the first 11 lines pristine.
- - `sed -n 12p` prints the 12th line pristine.
- - `titlecase`: Your script, assuming it reads stdin, and writes to stdout.
- - `tail -n+13` prints the remaining lines, starting at 13, pristine.
- ---
Disclaimer: untested. If you provide some samples, I'll test it.
- (Assuming your file names are portable, according to POSIX (<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282>). If not, please read this for writing a more robust script: <https://linux.codidact.com/posts/288310/289999#answer-289999>.)
- ```
- find . -type f \
- | grep '/chapter-[^/]*.xhtml$' \
- | while read f; do
- (
- head -n11 <"$f";
- sed -n '12p' <"$f" | titlecase;
- tail -n+13 <"$f";
- ) \
- | sponge "$f";
- done;
- ```
- - `find | grep` is for getting the file names.
- - `while read` starts a subshell for each file name, where the inner commands are run.
- - `() | sponge "$f"` will put everything printed by the `(...)` into the original file, atomically after all other commands have finished. sponge(1) is provided by the moreutils package.
- - `head -n11` prints the first 11 lines pristine.
- - `sed -n 12p` prints the 12th line pristine.
- - `titlecase`: Your script, assuming it reads stdin, and writes to stdout.
- - `tail -n+13` prints the remaining lines, starting at 13, pristine.
- ---
- Disclaimer: untested. If you provide some samples, I'll test it.
- ---
- If for some reason, you'd want to read a file only once, you could try writing a more complex filter using perl(1) (or maybe you manage to write it in sed(1)). That would remove the need for head(1) and tail(1).
- ```sh
- $ echo -e 'ASD\nFOO BAR BAZ\nQWE' | perl -p -e 's/(?<=[[:alpha:]])([[:upper:]])/\L\1/g if 2 .. 2'
- ASD
- Foo Bar Baz
- QWE
- ```
#3: Post edited
by
alx
·
2023-11-25T13:53:15Z (12 months ago)
(Assuming your file names are portable, according to POSIX (<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282>). If not, please read this for writing a more robust script: <https://linux.codidact.com/posts/288310>.)- ```
- find . -type f \
- | grep '/chapter-[^/]*.xhtml$' \
- | while read f; do
- (
- head -n11 <"$f";
- sed -n '12p' <"$f" | titlecase;
- tail -n+13 <"$f";
- ) \
- | sponge "$f";
- done;
- ```
- - `find | grep` is for getting the file names.
- - `while read` starts a subshell for each file name, where the inner commands are run.
- - `() | sponge "$f"` will put everything printed by the `(...)` into the original file, atomically after all other commands have finished. sponge(1) is provided by the moreutils package.
- - `head -n11` prints the first 11 lines pristine.
- - `sed -n 12p` prints the 12th line pristine.
- - `titlecase`: Your script, assuming it reads stdin, and writes to stdout.
- - `tail -n+13` prints the remaining lines, starting at 13, pristine.
- ---
- Disclaimer: untested. If you provide some samples, I'll test it.
- (Assuming your file names are portable, according to POSIX (<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282>). If not, please read this for writing a more robust script: <https://linux.codidact.com/posts/288310/289999#answer-289999>.)
- ```
- find . -type f \
- | grep '/chapter-[^/]*.xhtml$' \
- | while read f; do
- (
- head -n11 <"$f";
- sed -n '12p' <"$f" | titlecase;
- tail -n+13 <"$f";
- ) \
- | sponge "$f";
- done;
- ```
- - `find | grep` is for getting the file names.
- - `while read` starts a subshell for each file name, where the inner commands are run.
- - `() | sponge "$f"` will put everything printed by the `(...)` into the original file, atomically after all other commands have finished. sponge(1) is provided by the moreutils package.
- - `head -n11` prints the first 11 lines pristine.
- - `sed -n 12p` prints the 12th line pristine.
- - `titlecase`: Your script, assuming it reads stdin, and writes to stdout.
- - `tail -n+13` prints the remaining lines, starting at 13, pristine.
- ---
- Disclaimer: untested. If you provide some samples, I'll test it.
#2: Post edited
by
alx
·
2023-11-25T13:52:39Z (12 months ago)
- (Assuming your file names are portable, according to POSIX (<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282>). If not, please read this for writing a more robust script: <https://linux.codidact.com/posts/288310>.)
- ```
- find . -type f \
- | grep '/chapter-[^/]*.xhtml$' \
- | while read f; do
- (
- head -n11 <"$f";
- sed -n '12p' <"$f" | titlecase;
- tail -n+13 <"$f";
- ) \
- | sponge "$f";
- done;
- ```
- - `find | grep` is for getting the file names.
- - `while read` starts a subshell for each file name, where the inner commands are run.
- - `() | sponge "$f"` will put everything printed by the `(...)` into the original file, atomically after all other commands have finished. sponge(1) is provided by the moreutils package.
- - `head -n11` prints the first 11 lines pristine.
- - `sed -n 12p` prints the 12th line pristine.
- - `titlecase`: Your script, assuming it reads stdin, and writes to stdout.
- `tail -n+13` prints the remaining lines, starting at 13, pristine.
- (Assuming your file names are portable, according to POSIX (<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282>). If not, please read this for writing a more robust script: <https://linux.codidact.com/posts/288310>.)
- ```
- find . -type f \
- | grep '/chapter-[^/]*.xhtml$' \
- | while read f; do
- (
- head -n11 <"$f";
- sed -n '12p' <"$f" | titlecase;
- tail -n+13 <"$f";
- ) \
- | sponge "$f";
- done;
- ```
- - `find | grep` is for getting the file names.
- - `while read` starts a subshell for each file name, where the inner commands are run.
- - `() | sponge "$f"` will put everything printed by the `(...)` into the original file, atomically after all other commands have finished. sponge(1) is provided by the moreutils package.
- - `head -n11` prints the first 11 lines pristine.
- - `sed -n 12p` prints the 12th line pristine.
- - `titlecase`: Your script, assuming it reads stdin, and writes to stdout.
- - `tail -n+13` prints the remaining lines, starting at 13, pristine.
- ---
- Disclaimer: untested. If you provide some samples, I'll test it.
#1: Initial revision
by
alx
·
2023-11-25T13:50:59Z (12 months ago)
(Assuming your file names are portable, according to POSIX (<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_282>). If not, please read this for writing a more robust script: <https://linux.codidact.com/posts/288310>.)
```
find . -type f \
| grep '/chapter-[^/]*.xhtml$' \
| while read f; do
(
head -n11 <"$f";
sed -n '12p' <"$f" | titlecase;
tail -n+13 <"$f";
) \
| sponge "$f";
done;
```
- `find | grep` is for getting the file names.
- `while read` starts a subshell for each file name, where the inner commands are run.
- `() | sponge "$f"` will put everything printed by the `(...)` into the original file, atomically after all other commands have finished. sponge(1) is provided by the moreutils package.
- `head -n11` prints the first 11 lines pristine.
- `sed -n 12p` prints the 12th line pristine.
- `titlecase`: Your script, assuming it reads stdin, and writes to stdout.
- `tail -n+13` prints the remaining lines, starting at 13, pristine.