{"id":28022,"date":"2025-08-22T06:10:20","date_gmt":"2025-08-22T03:10:20","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/sed-ile-buyuk-kucuk-harfe-duyarli-olmayan-arama-ve-degistirme-nasil-yapilir\/"},"modified":"2025-09-01T18:06:52","modified_gmt":"2025-09-01T15:06:52","slug":"sed-ile-buyuk-kucuk-harfe-duyarli-olmayan-arama-ve-degistirme-nasil-yapilir","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/sed-ile-buyuk-kucuk-harfe-duyarli-olmayan-arama-ve-degistirme-nasil-yapilir\/","title":{"rendered":"sed ile B\u00fcy\u00fck\/K\u00fc\u00e7\u00fck Harfe Duyarl\u0131 Olmayan Arama ve De\u011fi\u015ftirme Nas\u0131l Yap\u0131l\u0131r"},"content":{"rendered":"<p># sed ile B\u00fcy\u00fck\/K\u00fc\u00e7\u00fck Harfe Duyarl\u0131 Olmayan Arama ve De\u011fi\u015ftirme<\/p>\n<p>Metin dosyalar\u0131nda b\u00fcy\u00fck\/k\u00fc\u00e7\u00fck harfe duyarl\u0131 olmayan arama ve de\u011fi\u015ftirme i\u015flemleri, \u00f6zellikle b\u00fcy\u00fck veri i\u015fleme veya yaz\u0131l\u0131m geli\u015ftirme s\u00fcre\u00e7lerinde s\u0131k\u00e7a kar\u015f\u0131la\u015f\u0131lan bir ihtiya\u00e7t\u0131r.  <code class=\"language-\">sed<\/code> komutu, bu i\u015flemler i\u00e7in g\u00fc\u00e7l\u00fc ve esnek bir ara\u00e7 sunar, ancak b\u00fcy\u00fck\/k\u00fc\u00e7\u00fck harfe duyars\u0131zl\u0131\u011f\u0131 do\u011frudan desteklemez. Bu makalede, <code class=\"language-\">sed<\/code> kullanarak b\u00fcy\u00fck\/k\u00fc\u00e7\u00fck harfe duyarl\u0131 olmayan arama ve de\u011fi\u015ftirme i\u015flemlerini nas\u0131l ger\u00e7ekle\u015ftirece\u011finizi ad\u0131m ad\u0131m, yeni ba\u015flayanlardan ileri seviye kullan\u0131c\u0131lara kadar geni\u015f bir yelpazede ele alaca\u011f\u0131z.  <code class=\"language-\">sed<\/code>&#8216;in g\u00fc\u00e7l\u00fc yanlar\u0131n\u0131 ke\u015ffederek, metin i\u015fleme becerilerinizi geli\u015ftirebilir ve zamandan tasarruf edebilirsiniz.<\/p>\n<p><strong>\u00d6\u011frenme Yol Haritas\u0131<\/strong><\/p>\n<p><strong>Yeni Ba\u015flayan:<\/strong>  Temel <code class=\"language-\">sed<\/code> komutlar\u0131 ve b\u00fcy\u00fck\/k\u00fc\u00e7\u00fck harfe duyars\u0131z arama i\u00e7in basit \u00e7\u00f6z\u00fcmler.<\/p>\n<p><strong>Orta:<\/strong> Ger\u00e7ek d\u00fcnya senaryolar\u0131 ve optimizasyon teknikleri ile daha karma\u015f\u0131k \u00f6rnekler.<\/p>\n<p><strong>\u0130leri D\u00fczey:<\/strong> Performans analizi, \u00f6zel durumlar (edge caseler) ve geli\u015fmi\u015f <code class=\"language-\">sed<\/code> teknikleri.<\/p>\n<p><strong>Sed ile Temel Arama ve De\u011fi\u015ftirme \u0130\u015flemleri<\/strong><\/p>\n<p><code class=\"language-\">sed<\/code> komutu, metin ak\u0131\u015f\u0131n\u0131 i\u015fleyen bir ak\u0131\u015f d\u00fczenleyicidir.  Temel kullan\u0131m \u015fekli \u015fu \u015fekildedir:<\/p>\n<p><code class=\"language-\">sed 's\/arama_deseni\/de\u011fi\u015ftirme_deseni\/' dosya_adi<\/code><\/p>\n<p>Burada:<\/p>\n<p>* <code class=\"language-\">s<\/code>: De\u011fi\u015ftirme komutunu belirtir.<br \/>\n* <code class=\"language-\">\/arama_deseni\/<\/code>:  Arama yap\u0131lacak metin \u00f6r\u00fcnt\u00fcs\u00fcn\u00fc tan\u0131mlar.<br \/>\n* <code class=\"language-\">\/de\u011fi\u015ftirme_deseni\/<\/code>:  Arama \u00f6r\u00fcnt\u00fcs\u00fcn\u00fcn yerine ge\u00e7ecek metni tan\u0131mlar.<br \/>\n* <code class=\"language-\">dosya_adi<\/code>: \u0130\u015flenecek dosyan\u0131n ad\u0131d\u0131r.<\/p>\n<p>\u00d6rnek: &#8220;Merhaba D\u00fcnya&#8221; metninin i\u00e7indeki &#8220;Merhaba&#8221; kelimesini &#8220;Selam&#8221; ile de\u011fi\u015ftirmek i\u00e7in:<\/p>\n<pre class=\"language-bash\"><code>sed 's\/Merhaba\/Selam\/' dosya.txt<\/code><\/pre>\n<p><strong>B\u00fcy\u00fck\/K\u00fc\u00e7\u00fck Harfe Duyarl\u0131 Olmayan Arama Nas\u0131l Yap\u0131l\u0131r?<\/strong><\/p>\n<p><code class=\"language-\">sed<\/code>&#8216;in temel kullan\u0131m\u0131nda b\u00fcy\u00fck\/k\u00fc\u00e7\u00fck harf duyarl\u0131l\u0131\u011f\u0131 vard\u0131r.  B\u00fcy\u00fck\/k\u00fc\u00e7\u00fck harfe duyars\u0131z arama yapmak i\u00e7in <code class=\"language-\">I<\/code> bayra\u011f\u0131n\u0131 kullan\u0131r\u0131z:<\/p>\n<pre class=\"language-bash\"><code>sed 's\/Merhaba\/Selam\/I' dosya.txt<\/code><\/pre>\n<p>Bu komut, &#8220;Merhaba&#8221;, &#8220;merhaba&#8221;, &#8220;MERHABA&#8221; gibi farkl\u0131 b\u00fcy\u00fck\/k\u00fc\u00e7\u00fck harf kombinasyonlar\u0131nda bulunan &#8220;Merhaba&#8221; kelimesini &#8220;Selam&#8221; ile de\u011fi\u015ftirecektir.<\/p>\n<p><strong>Ger\u00e7ek D\u00fcnya \u00d6rne\u011fi: Log Dosyas\u0131 \u0130\u015fleme<\/strong><\/p>\n<p>Bir web sunucusunun log dosyas\u0131nda belirli bir hata mesaj\u0131n\u0131 (\u00f6rne\u011fin, &#8220;404 Not Found&#8221;) bulup, hatan\u0131n t\u00fcr\u00fcn\u00fc &#8220;Hata 404&#8221; olarak de\u011fi\u015ftirmek istedi\u011fimizi d\u00fc\u015f\u00fcnelim.  Log dosyas\u0131 b\u00fcy\u00fck ve k\u00fc\u00e7\u00fck harf kar\u0131\u015f\u0131kl\u0131\u011f\u0131 i\u00e7erebilir.  Bu durumda, <code class=\"language-\">I<\/code> bayra\u011f\u0131n\u0131 kullanarak b\u00fcy\u00fck\/k\u00fc\u00e7\u00fck harfe duyars\u0131z bir arama yapabiliriz:<\/p>\n<pre class=\"language-bash\"><code>sed 's\/404 Not Found\/Hata 404\/I' access.log<\/code><\/pre>\n<p>Bu komut, <code class=\"language-\">access.log<\/code> dosyas\u0131ndaki t\u00fcm &#8220;404 Not Found&#8221; varyasyonlar\u0131n\u0131 &#8220;Hata 404&#8221; ile de\u011fi\u015ftirecektir.<\/p>\n<p><strong>Birden Fazla De\u011fi\u015ftirme:  <code class=\"language-\">g<\/code> Bayra\u011f\u0131<\/strong><\/p>\n<p>Tek bir sat\u0131rda birden fazla e\u015fle\u015fmeyi de\u011fi\u015ftirmek i\u00e7in <code class=\"language-\">g<\/code> bayra\u011f\u0131n\u0131 kullan\u0131r\u0131z.  \u00d6rne\u011fin, bir sat\u0131rda birden fazla &#8220;Merhaba&#8221; kelimesi varsa hepsini de\u011fi\u015ftirmek i\u00e7in:<\/p>\n<pre class=\"language-bash\"><code>sed 's\/Merhaba\/Selam\/Ig' dosya.txt<\/code><\/pre>\n<p><strong>Karma\u015f\u0131k \u00d6r\u00fcnt\u00fcler ve \u00d6zel Karakterler<\/strong><\/p>\n<p><code class=\"language-\">sed<\/code> g\u00fc\u00e7l\u00fc bir d\u00fczenli ifade (regex) motoru kullan\u0131r.  Karma\u015f\u0131k arama ve de\u011fi\u015ftirme i\u015flemleri i\u00e7in regex&#8217;i kullanabiliriz.  \u00d6zel karakterleri (\u00f6rne\u011fin, <code class=\"language-\">.<\/code>, <code class=\"language-\">*<\/code>, <code class=\"language-\">+<\/code>, <code class=\"language-\">?<\/code>, <code class=\"language-\">[<\/code>, <code class=\"language-\">]<\/code>, <code class=\"language-\">(<\/code>, <code class=\"language-\">)<\/code>, <code class=\"language-\">^<\/code>, <code class=\"language-\">$<\/code>, <code class=\"language-\">\\<\/code>)  ka\u00e7\u0131\u015f karakteri <code class=\"language-\">\\<\/code> ile ka\u00e7\u0131rmam\u0131z gerekir.  \u00d6rne\u011fin, bir nokta karakterini (<code class=\"language-\">.<\/code>) aramak i\u00e7in <code class=\"language-\">\\.<\/code> yazmal\u0131y\u0131z.<\/p>\n<p><strong>Performans Optimizasyonu<\/strong><\/p>\n<p>\u00c7ok b\u00fcy\u00fck dosyalarda <code class=\"language-\">sed<\/code>&#8216;in performans\u0131n\u0131 optimize etmek i\u00e7in a\u015fa\u011f\u0131daki y\u00f6ntemleri kullanabiliriz:<\/p>\n<p>* <strong><code class=\"language-\">-i<\/code> bayra\u011f\u0131:<\/strong>  Dosyay\u0131 yerinde de\u011fi\u015ftirmek yerine yedek bir dosya olu\u015fturur.  Hata durumunda orijinal dosyay\u0131 korur.<br \/>\n* <strong><code class=\"language-\">sed -n<\/code> komutu:<\/strong> Sadece e\u015fle\u015fen sat\u0131rlar\u0131 yazd\u0131r\u0131r, t\u00fcm dosyay\u0131 i\u015flemez.<\/p>\n<p><strong>\u0130leri D\u00fczey Teknikler:  Gruplama ve Geri Referanslar<\/strong><\/p>\n<p><code class=\"language-\">sed<\/code>&#8216;de parantez kullanarak alt ifadeleri gruplayabilir ve <code class=\"language-\">\\1<\/code>, <code class=\"language-\">\\2<\/code>, &#8230; gibi geri referanslarla bu gruplar\u0131 de\u011fi\u015ftirme i\u015fleminde tekrar kullanabiliriz.  \u00d6rne\u011fin, &#8220;Ad Soyad&#8221; format\u0131ndaki isimleri &#8220;Soyad, Ad&#8221; format\u0131na d\u00f6n\u00fc\u015ft\u00fcrmek i\u00e7in:<\/p>\n<pre class=\"language-bash\"><code>sed 's\/\\(.*\\) \\(.*\\)\/\\2, \\1\/' dosya.txt<\/code><\/pre>\n<p><strong>Edge Case&#8217;ler ve Hata Y\u00f6netimi<\/strong><\/p>\n<p><code class=\"language-\">sed<\/code> komutlar\u0131n\u0131 kullan\u0131rken, beklenmedik davran\u0131\u015flara yol a\u00e7abilecek \u00f6zel durumlar olabilir.  \u00d6rne\u011fin, regex&#8217;iniz \u00e7ok genel olabilir ve istenmeyen de\u011fi\u015fikliklere yol a\u00e7abilir.  Bu nedenle, komutlar\u0131n\u0131z\u0131 dikkatlice test etmek ve k\u00fc\u00e7\u00fck bir alt k\u00fcme \u00fczerinde denemek \u00f6nemlidir.  <code class=\"language-\">-i<\/code> bayra\u011f\u0131n\u0131 kullanarak orijinal dosyan\u0131z\u0131 korumay\u0131 unutmay\u0131n.  Ayr\u0131ca, <code class=\"language-\">sed<\/code>&#8216;in hata mesajlar\u0131n\u0131 dikkatlice inceleyerek olas\u0131 sorunlar\u0131 tespit edebilirsiniz.<\/p>\n<p><strong>Sonu\u00e7<\/strong><\/p>\n<p>Bu makalede, <code class=\"language-\">sed<\/code> komutu kullanarak b\u00fcy\u00fck\/k\u00fc\u00e7\u00fck harfe duyars\u0131z arama ve de\u011fi\u015ftirme i\u015flemlerini ad\u0131m ad\u0131m a\u00e7\u0131klad\u0131k.  Temel kullan\u0131m\u0131ndan ileri d\u00fczey tekniklere kadar geni\u015f bir yelpazede \u00f6rnekler verdik.  <code class=\"language-\">sed<\/code>, g\u00fc\u00e7l\u00fc ve esnek bir ara\u00e7t\u0131r, ancak do\u011fru kullan\u0131m\u0131 \u00f6\u011frenmek \u00f6nemlidir.  <code class=\"language-\">sed<\/code>&#8216;in g\u00fcc\u00fcn\u00fc kullanarak metin i\u015fleme i\u015flemlerinizi h\u0131zland\u0131rabilir ve verimlili\u011finizi art\u0131rabilirsiniz. Daha fazla bilgi ve ipucu i\u00e7in [fatihsoysal.com](https:\/\/fatihsoysal.com) adresini ziyaret edebilirsiniz.<\/p>\n<p><strong>S\u0131k\u00e7a Sorulan Sorular:<\/strong><\/p>\n<p>1. <strong><code class=\"language-\">sed<\/code> komutu hangi i\u015fletim sistemlerinde \u00e7al\u0131\u015f\u0131r?<\/strong>  <code class=\"language-\">sed<\/code>, Unix tabanl\u0131 i\u015fletim sistemlerinde (Linux, macOS, BSD) \u00e7al\u0131\u015f\u0131r. Windows&#8217;ta da Cygwin veya Git Bash gibi Unix benzeri ortamlar arac\u0131l\u0131\u011f\u0131yla kullan\u0131labilir.<\/p>\n<p>2. <strong><code class=\"language-\">sed<\/code>&#8216;in performans\u0131 nas\u0131l iyile\u015ftirilebilir?<\/strong>  B\u00fcy\u00fck dosyalar i\u00e7in <code class=\"language-\">-i<\/code> bayra\u011f\u0131 ve <code class=\"language-\">-n<\/code> bayra\u011f\u0131 kullan\u0131larak performans iyile\u015ftirilebilir.  Ayr\u0131ca, regex ifadelerinin optimizasyonu da \u00f6nemlidir.<\/p>\n<p>3. <strong><code class=\"language-\">sed<\/code>&#8216;de hata y\u00f6netimi nas\u0131l yap\u0131l\u0131r?<\/strong>  <code class=\"language-\">-i<\/code> bayra\u011f\u0131 ile orijinal dosyay\u0131 korumak, komutlar\u0131 test etmek ve hata mesajlar\u0131n\u0131 dikkatlice incelemek \u00f6nemlidir.<\/p>\n<p>4. <strong><code class=\"language-\">sed<\/code>&#8216;in alternatifleri nelerdir?<\/strong>  <code class=\"language-\">awk<\/code>, <code class=\"language-\">perl<\/code> ve <code class=\"language-\">python<\/code> gibi di\u011fer metin i\u015fleme ara\u00e7lar\u0131 da kullan\u0131labilir.<\/p>\n<p>5. <strong><code class=\"language-\">sed<\/code> ile \u00e7ok sat\u0131rl\u0131 arama ve de\u011fi\u015ftirme nas\u0131l yap\u0131l\u0131r?<\/strong>  <code class=\"language-\">sed<\/code>&#8216;in temel kullan\u0131m\u0131 tek sat\u0131r bazl\u0131d\u0131r.  \u00c7ok sat\u0131rl\u0131 i\u015flemler i\u00e7in daha geli\u015fmi\u015f teknikler veya farkl\u0131 ara\u00e7lar (\u00f6rne\u011fin, <code class=\"language-\">awk<\/code>) kullanmak gerekebilir.<\/p>\n<p>Yazar: Fatih Soysal<\/p>\n","protected":false},"excerpt":{"rendered":"# sed ile B\u00fcy\u00fck\/K\u00fc\u00e7\u00fck Harfe Duyarl\u0131 Olmayan Arama ve De\u011fi\u015ftirme Metin dosyalar\u0131nda b\u00fcy\u00fck\/k\u00fc\u00e7\u00fck harfe duyarl\u0131 olmayan arama ve&hellip;","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1374],"tags":[],"class_list":{"0":"post-28022","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-sed","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO 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