8027.org

Poor man’s replace in files. Get it. Or see it…

1. #!/bin/bash
2. #
3. # Thu May 12 12:02:01 CEST 2005 * Miguel de Benito <nonick AT 8027 DOT org>
4. #
5. # Poor man's "replace in files"...
6. #
7.  
8. ##################
9. # Load lib
10. #
11. if [ ! -f ~/bin/messages.sh ]; then
12. echo "~/bin/messages.sh is required but not found. Bye..."
13. exit 1
14. fi
15. . ~/bin/messages.sh
16.  
17. TMPPATH="/tmp/replace"
18.  
19. ##################
20. # Check params
21. #
22. if (( ${#@} < 3 ))
23. then
24. echo
25. echo "Usage: $0 <directory> <string> <replacement> <extension>"
26. echo
27. echo " <string> is taken as a Perl regex"
28. echo " <replacement> must have any $ escaped"
29. echo " <extension> is optional"
30. exit 1
31. fi
32.  
33. DIR=$1
34. STR=$2
35. REP=$3
36. EXT=$4
37.  
38. if [ ! -d "$DIR" ]
39. then
40. error_msg "Either '$DIR' is not a directory or it is not readable."
41. exit 2
42. fi
43.  
44. # Replace . with working directory
45. [ "$DIR" == "." ] && DIR=$(pwd)
46.  
47. if [ -z "$EXT" ]
48. then
49. EXT='*'
50. extmsg="every file"
51. else
52. extmsg="'$EXT' files"
53. fi
54.  
55.  
56. ##################
57. # Go
58. #
59. echo
60. echo "Replacing '$STR' with '$REP' in $extmsg of directory '$DIR':"
61. echo
62.  
63.  
64. run_cmd "Creating temporary directory... " "/bin/mkdir -p $TMPPATH/$DIR"
65.  
66. files=$(find $1 -maxdepth 1 -name "*$EXT")
67. [ -z "$files" ] && info_msg "No files match the extension pattern" && exit 0;
68.  
69. for file in $files
70. do
71. lines=$(grep -clP "$STR" $file)
72. if [ ! -z "$lines" ]
73. then
74. echo " $file"
75. name=$(basename $file)
76. tmp=$TMPPATH/$name~~
77. cat $file | perl -ne "s/$STR/$REP/; print $_;" > $tmp
78. cp $tmp $DIR/$name
79. fi
80. done
81.  
82. # TODO: check return codes and ask if we should revert changes
83.  
84. Download this code: replace.sh

This entry was posted on Friday, May 13th, 2005 at 3:01 am and is filed under Bash. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.