diff --git a/bin/as.sh b/bin/as.sh
index 2d3e1d9afb..15537fb592 100755
--- a/bin/as.sh
+++ b/bin/as.sh
@@ -260,7 +260,7 @@ reset_for_env()
         JAVA_HOME=$(echo "$JAVA_COMMAND_PATH" | sed -n 's/\/bin\/java$//p')
     fi
 
-    # iterater throught candidates to find a proper JAVA_HOME at least contains tools.jar which is required by arthas.
+    # iterater through candidates to find a proper JAVA_HOME at least contains tools.jar which is required by arthas.
     if [ ! -d "${JAVA_HOME}" ]; then
         JAVA_HOME_CANDIDATES=($(ps aux | grep java | grep -v 'grep java' | awk '{print $11}' | sed -n 's/\/bin\/java$//p'))
         for JAVA_HOME_TEMP in ${JAVA_HOME_CANDIDATES[@]}; do
diff --git a/client/src/main/java/org/apache/commons/net/SocketClient.java b/client/src/main/java/org/apache/commons/net/SocketClient.java
index e23b985dba..8a43cf7acd 100644
--- a/client/src/main/java/org/apache/commons/net/SocketClient.java
+++ b/client/src/main/java/org/apache/commons/net/SocketClient.java
@@ -817,7 +817,7 @@ protected void createCommandSupport(){
 
     /**
      * Subclasses can override this if they need to provide their own
-     * instance field for backwards compatibilty.
+     * instance field for backwards compatibility.
      *
      * @return the CommandSupport instance, may be {@code null}
      * @since 3.0
diff --git a/client/src/main/java/org/apache/commons/net/telnet/TelnetOptionHandler.java b/client/src/main/java/org/apache/commons/net/telnet/TelnetOptionHandler.java
index 14b4f01571..2853a06f00 100644
--- a/client/src/main/java/org/apache/commons/net/telnet/TelnetOptionHandler.java
+++ b/client/src/main/java/org/apache/commons/net/telnet/TelnetOptionHandler.java
@@ -210,7 +210,7 @@ public int[] answerSubnegotiation(int suboptionData[], int suboptionLength) {
      * The method is used to specify a subnegotiation sequence that will be
      * sent by TelnetClient when the option is activated.
      * <p>
-     * This implementation returns null, and must be overriden by
+     * This implementation returns null, and must be overridden by
      * the actual TelnetOptionHandler to specify
      * which response must be sent for the subnegotiation request.
      * @return subnegotiation sequence to be sent by TelnetClient. TelnetClient
@@ -226,7 +226,7 @@ public int[] startSubnegotiationLocal() {
      * The method is used to specify a subnegotiation sequence that will be
      * sent by TelnetClient when the option is activated.
      * <p>
-     * This implementation returns null, and must be overriden by
+     * This implementation returns null, and must be overridden by
      * the actual TelnetOptionHandler to specify
      * which response must be sent for the subnegotiation request.
      * @return subnegotiation sequence to be sent by TelnetClient. TelnetClient
diff --git a/core/src/main/java/com/taobao/arthas/core/command/monitor200/ProfilerCommand.java b/core/src/main/java/com/taobao/arthas/core/command/monitor200/ProfilerCommand.java
index 54657ed302..467e219182 100644
--- a/core/src/main/java/com/taobao/arthas/core/command/monitor200/ProfilerCommand.java
+++ b/core/src/main/java/com/taobao/arthas/core/command/monitor200/ProfilerCommand.java
@@ -77,7 +77,7 @@ public class ProfilerCommand extends AnnotatedCommand {
 
     /**
      * profile allocations with BYTES interval
-     * according to async-profiler README, alloc may contains non-numeric charactors
+     * according to async-profiler README, alloc may contains non-numeric characters
      */
     private String alloc;
 
@@ -88,7 +88,7 @@ public class ProfilerCommand extends AnnotatedCommand {
 
     /**
      * profile contended locks longer than DURATION ns
-     * according to async-profiler README, alloc may contains non-numeric charactors
+     * according to async-profiler README, alloc may contains non-numeric characters
      */
     private String lock;
 
diff --git a/core/src/main/java/com/taobao/arthas/core/shell/ShellServer.java b/core/src/main/java/com/taobao/arthas/core/shell/ShellServer.java
index ff11ac2ea4..45d12638d1 100644
--- a/core/src/main/java/com/taobao/arthas/core/shell/ShellServer.java
+++ b/core/src/main/java/com/taobao/arthas/core/shell/ShellServer.java
@@ -61,7 +61,7 @@ public static ShellServer create() {
     public abstract ShellServer registerTermServer(TermServer termServer);
 
     /**
-     * Create a new shell, the returned shell should be closed explicitely.
+     * Create a new shell, the returned shell should be closed explicitly.
      *
      * @param term the shell associated terminal
      * @return the created shell
@@ -69,7 +69,7 @@ public static ShellServer create() {
     public abstract Shell createShell(Term term);
 
     /**
-     * Create a new shell, the returned shell should be closed explicitely.
+     * Create a new shell, the returned shell should be closed explicitly.
      *
      * @return the created shell
      */
diff --git a/core/src/main/java/com/taobao/arthas/core/shell/command/CommandBuilder.java b/core/src/main/java/com/taobao/arthas/core/shell/command/CommandBuilder.java
index 1e07a9a810..1acaf6e787 100644
--- a/core/src/main/java/com/taobao/arthas/core/shell/command/CommandBuilder.java
+++ b/core/src/main/java/com/taobao/arthas/core/shell/command/CommandBuilder.java
@@ -13,7 +13,7 @@
 public abstract class CommandBuilder {
 
     /**
-     * Create a new commmand builder, the command is responsible for managing the options and arguments via the
+     * Create a new command builder, the command is responsible for managing the options and arguments via the
      * {@link CommandProcess#args() arguments}.
      *
      * @param name the command name
@@ -24,7 +24,7 @@ public static CommandBuilder command(String name) {
     }
 
     /**
-     * Create a new commmand with its {@link CLI} descriptor. This command can then retrieve the parsed
+     * Create a new command with its {@link CLI} descriptor. This command can then retrieve the parsed
      * {@link CommandProcess#commandLine()} when it executes to know get the command arguments and options.
      *
      * @param cli the cli to use