Changes between Initial Version and Version 1 of waue/2009/0521

Timestamp:

May 21, 2009, 2:14:09 PM (15 years ago)

Author:

waue

Comment:

--

waue/2009/0521

@@ +1 @@
+
+
+ * 用shell 批次改檔名
+   * 此用法應用到 for in , 正規表示法, awk , sed 因此還學滿多的
+{{{
+#!/bin/sh
+
+
+
+cd ~/test2
+
+echo `pwd`
+
+for i in *.[tT][iI][fF]; do
+
+        #若目錄內無 .tif 檔案 $i 會傳回 "*.[tT][iI][fF]"
+
+        if [ "$i" != "*.[tT][iI][fF]" ]; then
+
+                #取得副檔名
+
+                subname="`echo $i | awk -F '.' '{print $NF}'`"
+
+                #取得主檔名
+
+                filename="`echo $i | sed -e s/\.${subname}//`"
+
+                #將 .tif 轉成 .pdf
+
+                #tiff2pdf -o "${filename}.pdf" "$i"
+
+                echo "tif -> pdf"
+
+                mv ${filename}.${subname} ${filename}.pdf
+
+                #若執行成功則刪除 .tif 檔案
+
+                if [ $? -eq 0 ]; then
+
+                        rm -rf $i
+
+                fi
+
+        fi
+
+done
+}}}
+
+ * awk 
+{{{
+Examples:
+
+        gawk '{ sum += $1 }; END { print sum }' file
+
+        gawk -F: '{ print $1 }' /etc/passwd
+}}}
+
+ * sed 
+{{{
+Usage: sed [OPTION]... {script-only-if-no-other-script} [input-file]...
+
+
+
+  -n, --quiet, --silent
+
+                 suppress automatic printing of pattern space
+
+  -e script, --expression=script
+
+                 add the script to the commands to be executed
+}}}