Changing the first letter of every line in a file to uppercase
bash, case, unicode-string
Solution
Use `sed`:
sed 's/^\(.\)/\U\1/' yourfile > convertedfile
Little explanation:
- the `^` represents the start of a line.
- `.` matches any character
- `\U` converts to uppercase
- `\( ... \)` specifies a section to be referenced later (as `\1` in this case); parentheses are to be escaped here.
Do not try to redirect the output to the same file in one command (i.e. `> yourfile`) as you will lose your data. If you want to replace in the same file then check out joelparkerhenderson's answer.
Problem
I need to change the first letter of every line in a file to uppercase, e.g. ``` the bear ate the fish. the river was too fast. ``` Would become: ``` The bear ate the fish. The river was too fast. ``` - The document contains some special letters: a, a, á, à, ǎ, ā, b, c, d, e, e, é, è, ě, ē, f, g, h, i, i, í, ì, ǐ, ī, j, k, l, m, n, o, o, ó, ò, ǒ, ō, p, q, r, s, t, u, u, ú, ù, ǔ, ü, ǘ, ǜ, ǚ, ǖ, ū, v, w, x, y, and z. - The uppercase forms of these letters are: A, A, Á, À, Ǎ, Ā, B, C, D, E, E, É, È, Ě, Ē, F, G, H, I, I, Í, Ì, Ǐ, Ī, J, K, L, M, N, O, O, Ó, Ò, Ǒ, Ō, P, Q, R, S, T, U, U, Ú, Ù, Ǔ, Ü, Ǘ, Ǜ, Ǚ, Ǖ, Ū, V, W, X, Y, and Z. How can I change the first letter of every line in the file to uppercase?