Differences

This shows you the differences between two versions of the page.

--- coding:bash [2011/12/03 10:00]
tkilla created
+++ coding:bash [2011/12/04 08:28] (current)
tkilla for loop examples
@@ Line 1: / Line 1: @@
 ====== bash ======
+language syntax
+===== for loops =====
+   for i in 1 2 3 4 5
+   do
+      echo "Welcome $i times"
+   done
+   for i in {1..5} ...
+   for i in $(seq 1 2 20)
+   for (( c=1; c<=5; c++ ))
+   if (disaster-condition)
+   then
+     break       	   # Abandon the loop.
+   fi
+  if (condition)
+  then
+     continue              # Go to next iteration of I in the loop and skip statements3
+  fi
+  for file in /etc/*
+  do
+     if [ "${file}" == "/etc/resolv.conf" ]
+     then
+        ...
+        break
+     fi
+  done
+\\
+== for loop examples: ==
+**show 'disc free' space every 10sec:**
+  for i in {1..1000}; do df -h ; echo '______'; sleep 10 ; done;
+**create a batch of symlinks:**
+  for i in `ls /var/www/`; do echo $i; ln -s /var/www/${i}/traffic/ /var/www/webalizer/${i}; done
+**remove files, when the list of files is too long for rm:**

fr33.info