diff --git a/AUTHORS.md b/AUTHORS.md
index 4f5e92e..248e2ed 100644
--- a/AUTHORS.md
+++ b/AUTHORS.md
@@ -5,40 +5,41 @@
 # Contributors
 
 1. Andreas Volkmann - [@goreRatzete](https://github.com/goreRatzete) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=goreRatzete))
-1. Egor Andreevici - [@Egorand](https://github.com/Egorand) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=Egorand))
-1. Karun Japhet - [@javatarz](https://github.com/javatarz) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=javatarz))
-1. Eric Burke - [@eburke56](https://github.com/eburke56) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=eburke56))
-1. Günther Grill - [@guenhter](https://github.com/guenhter) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=guenhter))
-1. jpopadak -[@jpopadak](https://github.com/jpopadak) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=jpopadak))
-1. Nikolai Hellwig - [@nhellwig](https://github.com/nhellwig) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=nhellwig))
-1. Greg Woodfill - [@gregwoodfill](https://github.com/gregwoodfill) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=gregwoodfill))
-1. cketti -[@cketti](https://github.com/cketti) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=cketti))
-1. Grzegorz Miszewski - [@miszmaniac](https://github.com/miszmaniac) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=miszmaniac))
-1. Yahor Berdnikau - [@Tapchicoma](https://github.com/Tapchicoma) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=Tapchicoma))
-1. Alan Evans - [@westonal](https://github.com/westonal) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=westonal))
-1. Victor J - Reventos [@vjames19](https://github.com/vjames19) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=vjames19))
-1. B. K. Oxley - [@binkley](https://github.com/binkley) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=binkley))
-1. Vasili Chyrvon - [@Jeevuz](https://github.com/Jeevuz) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=Jeevuz))
-1. Yannick - [@fishb6nes](https://github.com/fishb6nes) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=fishb6nes))
-1. Ole Kristian - Sandum [@okkero](https://github.com/okkero) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=okkero))
-1. Gabriel Aumala - [@GAumala](https://github.com/GAumala) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=GAumala))
-1. Deconinck Alban - [@neyb](https://github.com/neyb) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=neyb))
-1. Fabrício Rissetto - [@fabriciorissetto](https://github.com/fabriciorissetto) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=fabriciorissetto))
-1. Vitus Ortner - [@vitusortner](https://github.com/vitusortner) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=vitusortner))
-1. Caleb Brinkman - [@floralvikings](https://github.com/floralvikings) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=floralvikings))
-1. Jonathan Cornaz - [@jcornaz](https://github.com/jcornaz) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=jcornaz))
-1. Ivan Atanasov - [@IvanAtanasov89](https://github.com/IvanAtanasov89) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=IvanAtanasov89))
-1. Ruben Gees - [@rubengees](https://github.com/rubengees) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=rubengees))
-1. Juechen Wang - [@wangjuechen](https://github.com/wangjuechen) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=wangjuechen))
-1. Anton Sheihman [@sheix_](https://github.com/sheix_) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=rubengees))
-1. Vaios Tsitsonis [@St4B](https://github.com/St4B) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=st4b))
-1. Jógvan Olsen - [@jeggy](https://github.com/jeggy) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=jeggy))
-1. Yang C - [@ychescale9](https://github.com/ychescale9) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=ychescale9))
-1. Christian Ivicevic - [@ChristianIvicevic](https://github.com/ChristianIvicevic) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=ChristianIvicevic))
-1. Ivan Mikhnovich - [@Murtaught](https://github.com/Murtaught) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=Murtaught))
-1. Jc Miñarro - [@JcMinarro](https://github.com/JcMinarro) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=JcMinarro))
-1. Kshitij Patil [@Kshitij09](https://github.com/Kshitij09) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=Kshitij09))
-1. Keivan Esbati - [@Tenkei](https://github.com/Tenkei) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=Tenkei))
-1. Sam Neirinck - [@samneirinck](https://github.com/samneirinck) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=samneirinck)) 
-1. Maxim Ivanov [@drcolombo](https://github.com/drcolombo) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=drcolombo))
-1. Piotr Bakalarski [@piotrb5e3](https://github.com/piotrb5e3) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=piotrb5e3))
\ No newline at end of file
+2. Egor Andreevici - [@Egorand](https://github.com/Egorand) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=Egorand))
+3. Karun Japhet - [@javatarz](https://github.com/javatarz) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=javatarz))
+4. Eric Burke - [@eburke56](https://github.com/eburke56) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=eburke56))
+5. Günther Grill - [@guenhter](https://github.com/guenhter) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=guenhter))
+6. jpopadak -[@jpopadak](https://github.com/jpopadak) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=jpopadak))
+7. Nikolai Hellwig - [@nhellwig](https://github.com/nhellwig) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=nhellwig))
+8. Greg Woodfill - [@gregwoodfill](https://github.com/gregwoodfill) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=gregwoodfill))
+9. cketti -[@cketti](https://github.com/cketti) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=cketti))
+10. Grzegorz Miszewski - [@miszmaniac](https://github.com/miszmaniac) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=miszmaniac))
+11. Yahor Berdnikau - [@Tapchicoma](https://github.com/Tapchicoma) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=Tapchicoma))
+12. Alan Evans - [@westonal](https://github.com/westonal) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=westonal))
+13. Victor J - Reventos [@vjames19](https://github.com/vjames19) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=vjames19))
+14. B. K. Oxley - [@binkley](https://github.com/binkley) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=binkley))
+15. Vasili Chyrvon - [@Jeevuz](https://github.com/Jeevuz) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=Jeevuz))
+16. Yannick - [@fishb6nes](https://github.com/fishb6nes) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=fishb6nes))
+17. Ole Kristian - Sandum [@okkero](https://github.com/okkero) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=okkero))
+18. Gabriel Aumala - [@GAumala](https://github.com/GAumala) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=GAumala))
+19. Deconinck Alban - [@neyb](https://github.com/neyb) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=neyb))
+20. Fabrício Rissetto - [@fabriciorissetto](https://github.com/fabriciorissetto) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=fabriciorissetto))
+21. Vitus Ortner - [@vitusortner](https://github.com/vitusortner) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=vitusortner))
+22. Caleb Brinkman - [@floralvikings](https://github.com/floralvikings) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=floralvikings))
+23. Jonathan Cornaz - [@jcornaz](https://github.com/jcornaz) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=jcornaz))
+24. Ivan Atanasov - [@IvanAtanasov89](https://github.com/IvanAtanasov89) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=IvanAtanasov89))
+25. Ruben Gees - [@rubengees](https://github.com/rubengees) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=rubengees))
+26. Juechen Wang - [@wangjuechen](https://github.com/wangjuechen) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=wangjuechen))
+27. Anton Sheihman [@sheix_](https://github.com/sheix_) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=rubengees))
+28. Vaios Tsitsonis [@St4B](https://github.com/St4B) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=st4b))
+29. Jógvan Olsen - [@jeggy](https://github.com/jeggy) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=jeggy))
+30. Yang C - [@ychescale9](https://github.com/ychescale9) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=ychescale9))
+31. Christian Ivicevic - [@ChristianIvicevic](https://github.com/ChristianIvicevic) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=ChristianIvicevic))
+32. Ivan Mikhnovich - [@Murtaught](https://github.com/Murtaught) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=Murtaught))
+33. Jc Miñarro - [@JcMinarro](https://github.com/JcMinarro) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=JcMinarro))
+34. Kshitij Patil [@Kshitij09](https://github.com/Kshitij09) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=Kshitij09))
+35. Keivan Esbati - [@Tenkei](https://github.com/Tenkei) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=Tenkei))
+36. Sam Neirinck - [@samneirinck](https://github.com/samneirinck) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=samneirinck)) 
+37. Maxim Ivanov [@drcolombo](https://github.com/drcolombo) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=drcolombo))
+38. Piotr Bakalarski [@piotrb5e3](https://github.com/piotrb5e3) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=piotrb5e3))
+39. Priyank Gupta [@priyaaank](https://github.com/priyaaank) ([Contributions](https://github.com/MarkusAmshove/Kluent/commits?author=priyaaank))
\ No newline at end of file
diff --git a/docs/FileSystem.md b/docs/FileSystem.md
index e1fe570..fd2aa7f 100644
--- a/docs/FileSystem.md
+++ b/docs/FileSystem.md
@@ -19,4 +19,7 @@ file.shouldNotHaveExtension("txt")
 
 file.shouldHaveName("myFile")
 file.shouldNotHaveName("myFile")
+
+file.shouldContainLineWithString("aSampleString")
+file.shouldNotContainLineWithString("aSampleString")
 ```
diff --git a/jvm/src/main/kotlin/org/amshove/kluent/File.kt b/jvm/src/main/kotlin/org/amshove/kluent/File.kt
index e63e65d..8b0285e 100644
--- a/jvm/src/main/kotlin/org/amshove/kluent/File.kt
+++ b/jvm/src/main/kotlin/org/amshove/kluent/File.kt
@@ -3,6 +3,7 @@ package org.amshove.kluent
 import org.amshove.kluent.internal.assertFalse
 import org.amshove.kluent.internal.assertTrue
 import java.io.File
+import java.nio.charset.Charset
 
 fun File.shouldExist() = assertTrue("The file '${this.absolutePath}' should exist, but does not", this.exists())
 fun File.shouldNotExist() = assertFalse("The file '${this.absolutePath}' should not exist, but does", this.exists())
@@ -19,3 +20,6 @@ infix fun File.shouldNotHaveExtension(other: String) = this.extension shouldNotB
 infix fun File.shouldHaveName(other: String) = this.name shouldBeEqualTo other
 infix fun File.shouldNotHaveName(other: String) = this.name shouldNotBeEqualTo other
 
+infix fun File.shouldContainLineWithString(other: String) = this.readText(Charset.defaultCharset()) shouldContain other
+infix fun File.shouldNotContainLineWithString(other: String) = this.readText(Charset.defaultCharset()) shouldNotContain other
+
diff --git a/jvm/src/main/kotlin/org/amshove/kluent/FileBacktick.kt b/jvm/src/main/kotlin/org/amshove/kluent/FileBacktick.kt
index 331a00e..7846edc 100644
--- a/jvm/src/main/kotlin/org/amshove/kluent/FileBacktick.kt
+++ b/jvm/src/main/kotlin/org/amshove/kluent/FileBacktick.kt
@@ -14,6 +14,9 @@ fun File.`should not be file`() = this.shouldNotBeFile()
 infix fun File.`should have extension`(other: String) = this shouldHaveExtension(other)
 infix fun File.`should not have extension`(other: String) = this shouldNotHaveExtension(other)
 
-infix fun File.`should have name`(other: String) = this shouldHaveName(other)
-infix fun File.`should not have name`(other: String) = this shouldNotHaveName(other)
+infix fun File.`should have name`(other: String) = this shouldHaveName (other)
+infix fun File.`should not have name`(other: String) = this shouldNotHaveName (other)
+
+infix fun File.`should contain line with string`(other: String) = this shouldContainLineWithString (other)
+infix fun File.`should not contain line with string`(other: String) = this shouldNotContainLineWithString (other)
 
diff --git a/jvm/src/test/kotlin/org/amshove/kluent/tests/assertions/file/FileTestHelper.kt b/jvm/src/test/kotlin/org/amshove/kluent/tests/assertions/file/FileTestHelper.kt
index 9dc270a..388b53b 100644
--- a/jvm/src/test/kotlin/org/amshove/kluent/tests/assertions/file/FileTestHelper.kt
+++ b/jvm/src/test/kotlin/org/amshove/kluent/tests/assertions/file/FileTestHelper.kt
@@ -3,10 +3,10 @@ package org.amshove.kluent.tests.assertions.file
 import java.io.File
 
 /**
- * Constructs a directory or a plain file with no content and deletes it after the body has run
+ * Constructs a directory or a plain file with text content and deletes it after the body has run
  */
 fun File.useFile(isDir: Boolean = false, body: (file: File) -> Unit) = try {
-    if (isDir) this.mkdir() else this.writeText("")
+    if (isDir) this.mkdir() else this.writeText("quick brown fox over a lazy dog")
     body(this)
 } finally {
     if (!this.delete()) throw Exception("Could not delete file")
diff --git a/jvm/src/test/kotlin/org/amshove/kluent/tests/assertions/file/ShouldContainLineWithStringShould.kt b/jvm/src/test/kotlin/org/amshove/kluent/tests/assertions/file/ShouldContainLineWithStringShould.kt
new file mode 100644
index 0000000..5a64aed
--- /dev/null
+++ b/jvm/src/test/kotlin/org/amshove/kluent/tests/assertions/file/ShouldContainLineWithStringShould.kt
@@ -0,0 +1,20 @@
+package org.amshove.kluent.tests.assertions.file
+
+import org.amshove.kluent.internal.assertFails
+import org.amshove.kluent.shouldContainLineWithString
+import org.junit.Test
+import java.io.File
+
+class ShouldContainLineWithStringShould {
+    private val file = File("test")
+
+    @Test
+    fun passWhenFileContainsLineWithString() {
+        file.useFile { it.shouldContainLineWithString("brown fox") }
+    }
+
+    @Test
+    fun failWhenFileDoesNotContainLineWithString() {
+        assertFails { file.shouldContainLineWithString("blue whale") }
+    }
+}
\ No newline at end of file
diff --git a/jvm/src/test/kotlin/org/amshove/kluent/tests/assertions/file/ShouldNotContainLineWithStringShould.kt b/jvm/src/test/kotlin/org/amshove/kluent/tests/assertions/file/ShouldNotContainLineWithStringShould.kt
new file mode 100644
index 0000000..f3a7100
--- /dev/null
+++ b/jvm/src/test/kotlin/org/amshove/kluent/tests/assertions/file/ShouldNotContainLineWithStringShould.kt
@@ -0,0 +1,21 @@
+package org.amshove.kluent.tests.assertions.file
+
+import org.amshove.kluent.internal.assertFails
+import org.amshove.kluent.shouldContainLineWithString
+import org.amshove.kluent.shouldNotContainLineWithString
+import org.junit.Test
+import java.io.File
+
+class ShouldNotContainLineWithStringShould {
+    private val file = File("test")
+
+    @Test
+    fun passWhenFileDoesNotContainsLineWithString() {
+        file.useFile { it.shouldNotContainLineWithString("brown dog") }
+    }
+
+    @Test
+    fun failWhenFileContainsLineWithString() {
+        assertFails { file.shouldNotContainLineWithString("lazy dog") }
+    }
+}
\ No newline at end of file