test_1.txt, test_2.txt...test_30.txtのような連番のファイルを作りたくなる時があります。
そんな時、1つ1つcpコマンドでコピーとかしてるようでは超絶だるいですよね。
そんな悩みをコマンド一発で解決する方法を紹介します。
- 実践
[riki@hoge]$ touch test_{1..30}.txt
[riki@hoge]$ ls
test_1.txt test_11.txt test_13.txt test_15.txt test_17.txt test_19.txt test_20.txt test_22.txt test_24.txt test_26.txt test_28.txt test_3.txt test_4.txt test_6.txt test_8.txt
test_10.txt test_12.txt test_14.txt test_16.txt test_18.txt test_2.txt test_21.txt test_23.txt test_25.txt test_27.txt test_29.txt test_30.txt test_5.txt test_7.txt test_9.txt
出来ました。
書式
{開始番号..終了番号}
| 記号 | 意味 |
|---|---|
| { | 開始を意味する |
| 開始番号 | 連番の最初の数字(1~30で作りたいなら1) |
| 終了番号 | 連番の最後の数字(1~30で作りたいなら30) |
| } | 終了を意味する |
応用してみる
アルファベットでも使ってみる
a~zとかも楽勝
[riki@hoge]$ touch test_{a..z}.txt
[riki@hoge]$ ls
test_a.txt test_c.txt test_e.txt test_g.txt test_i.txt test_k.txt test_m.txt test_o.txt test_q.txt test_s.txt test_u.txt test_w.txt test_y.txt
test_b.txt test_d.txt test_f.txt test_h.txt test_j.txt test_l.txt test_n.txt test_p.txt test_r.txt test_t.txt test_v.txt test_x.txt test_z.txt
桁を揃えてみる
ゼロを先頭に書くと、いい感じにゼロ埋めしてくれる
[riki@hoge]$ touch foo_{01..100}.txt
[riki@hoge]$ ls
foo_001.txt foo_009.txt foo_017.txt foo_025.txt foo_033.txt foo_041.txt foo_049.txt foo_057.txt foo_065.txt foo_073.txt foo_081.txt foo_089.txt foo_097.txt
foo_002.txt foo_010.txt foo_018.txt foo_026.txt foo_034.txt foo_042.txt foo_050.txt foo_058.txt foo_066.txt foo_074.txt foo_082.txt foo_090.txt foo_098.txt
foo_003.txt foo_011.txt foo_019.txt foo_027.txt foo_035.txt foo_043.txt foo_051.txt foo_059.txt foo_067.txt foo_075.txt foo_083.txt foo_091.txt foo_099.txt
foo_004.txt foo_012.txt foo_020.txt foo_028.txt foo_036.txt foo_044.txt foo_052.txt foo_060.txt foo_068.txt foo_076.txt foo_084.txt foo_092.txt foo_100.txt
foo_005.txt foo_013.txt foo_021.txt foo_029.txt foo_037.txt foo_045.txt foo_053.txt foo_061.txt foo_069.txt foo_077.txt foo_085.txt foo_093.txt
foo_006.txt foo_014.txt foo_022.txt foo_030.txt foo_038.txt foo_046.txt foo_054.txt foo_062.txt foo_070.txt foo_078.txt foo_086.txt foo_094.txt
foo_007.txt foo_015.txt foo_023.txt foo_031.txt foo_039.txt foo_047.txt foo_055.txt foo_063.txt foo_071.txt foo_079.txt foo_087.txt foo_095.txt
foo_008.txt foo_016.txt foo_024.txt foo_032.txt foo_040.txt foo_048.txt foo_056.txt foo_064.txt foo_072.txt foo_080.txt foo_088.txt foo_096.txt