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Guillaume: /* Purge MohidWater .dat files */

2011-01-18T18:24:36Z

‎Purge MohidWater .dat files

Guillaume at 14:17, 27 April 2010

2010-04-27T14:17:30Z

Guillaume at 11:51, 27 April 2010

2010-04-27T11:51:56Z

Guillaume: 1 revision

2008-12-03T10:39:05Z

1 revision

192.168.20.177: /* Examples */

2008-01-09T19:53:32Z

‎Examples

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Sed is a stream-editor in linux very useful to substitute string literals in files.

==Examples==
> sed -e "s/foo/bar/g" file1 file2
The above command will replace every occurence of ''foo'' with ''bar'' in file1 and file2

> find | sed -e "s/foo/bar/g"
The above command will replace every occurence of ''foo'' with ''bar'' in the stream returned by the ''find'' command.

> sed /^$/d
The above command will delete all empty lines

> sed -e 's/^[ \t]*//'
The above command will remove all leading/trailing blank spaces/tabs

> sed -e ':a;$!N;s/\n/ /;ta' file1 file2
The above command will join pairs of lines.

>sed -e "s/\\\\/bar/g" file
The above command will replace every occurence of a backslash literal('\') with bar in file.

>for i in `find | grep -w dat`; do sed -e "s@\\\\@\/@g" $i > $i.bak; mv $i.bak $i;done
The above command in bash will substitute every occurence of '\' with '/' in every file returned by ''find'' that matches the '.dat' extension.

>for i in `find | grep -w dat`
>do sed -e "s@D:\/Aplica\/MyModel@..\/..@g" $i > $i.bak
>mv $i.bak $i
>done
The above command will turn the paths into relative paths in every file ''.dat''.

> for i in `find | grep Nomfich`
>do j=`echo $i | tr [Nom] [nom]`
>if [ $i != $j ]
>then mv $i $j
>fi
>done;
The above command identifies all files names where the substring ''Nomfich'' occurs and renames them ''nomfich''. This is useful as linux is case-sensitive and the program code must be case-coherent with the filenames.

==Purge MohidWater ''.dat'' files==
Execute these three lines from a [http://en.wikipedia.org/wiki/PuTTY putty] session from within the directory of your current model:
>for i in `find | grep -w dat`; do sed -e "s@\\\\@\/@g" $i > $i.bak; mv $i.bak $i;done
>for i in `find | grep -w dat`; do sed -e "s@D:\/Aplica\/MyModel@..\/..@g" $i > $i.bak; mv $i.bak $i;done
> for i in `find | grep Nomfich`
>do j=`echo $i | tr [Nom] [nom]`
>if [ $i != $j ]
>then mv $i $j
>fi
>done;
NOTE: replace <code>D:\/Aplica\/MyModel</code> with the path written in your model coming from Mohid GUI. Also note that replacing all ''"\"'' for ''"\/"'' is required. (This is explained in the [http://en.wikipedia.org/wiki/Regular_expression regular expressions] context).

===MohidPurge===
This is current version of the [http://www.mohid.com/hydrogroup/documents/mohidpurge ''mohidpurge''] script:
#!/bin/bash
STRING=$1
#Changes in all .dat files '\' for '/'.
for i in `find | grep -w dat`; do
sed -e "s@\\\\@\/@g" $i > $i.bak
mv $i.bak $i
done
#Changes in all .dat files $path into '../..'.
for i in `find | grep -w dat`; do
sed -e "s@$STRING@..\/..@g" $i > $i.bak
mv $i.bak $i
done
#Renames all Nomfich files to nomfich.
for i in `find | grep Nomfich`; do
j=`echo $i | tr [Nom] [nom]`
if [ $i != $j ]; then
mv $i $j
fi
done
[[Category:Technology]]
[[Category:Linux]]

@@ Line 46: / Line 46: @@
   > for i in `find | grep Nomfich`
    >do j=`echo $i | tr [Nom] [nom]`
    >if [ $i != $j ]
    >then mv $i $j
@@ Line 69: / Line 75: @@
   for i in `find | grep Nomfich`; do
           j=`echo $i | tr [Nom] [nom]`
           if [ $i != $j ]; then
                   mv $i $j

@@ Line 73: / Line 73: @@
           fi
   done
 [[Category:Technology]]
 [[Category:Linux]]

@@ Line 16: / Line 16: @@
   > sed -e ':a;$!N;s/\n/ /;ta' file1 file2
 The above command will join pairs of lines.
   >sed -e "s/\\\\/bar/g" file

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