UNIX script help

[Robert_73]

Hi! list,
How do I put this in a script
%s/\[//
to remove all [ in a file.

Thanks in advance

[Rodney Hills]

sed -e 's/\[//' outfile

-- Rod Hills

[James R. Ferguson]

Hi Robert:

You could use 'tr':

# tr -d "[" < filename > filename.new

Regards!

...JRF....

[A. Clay Stephenson]

Easy way:

perl -i -p -e 's/\[//g' file1 file2 ...

or cd to desired directory

perl -i -p -e 's/\[//g' x*
to edit all files that begin with x.

No temp files or input output redirection needed.

[A. Clay Stephenson]

Hi again Robert:

I suppose I should have added if you add a suffix to the -i a backup file is also created for you automatically.

perl -i.save -p -e 's/\[//g' x*
to edit all files that begin with x.

THat would put the changes in files x1, x2, ...
and the backups would be x1.save, x2.save, ...

[H.Merijn Brand (procura]

in perl tr is also faster than s, and you don't need the escape, because tr does not know of character classes (in a golf game you would use tr's alias y)

l1:/tmp 105 > cat xx.txt
blah[1]
l1:/tmp 106 > perl -pi -e 'tr/[//d' xx.txt
l1:/tmp 107 > cat xx.txt
blah1]
l1:/tmp 108 >

[Ian Dennison_1]

Aha! You want to put the command in a script or build the command string in a script then run it?

To simply run the command, place it in a script as per the first reply.

If you want to build the search string in the script, then you will need to put a backslash before the backslash to get the shell to convert it to a non-special character.

eg sed 's/\\\[//g'

Share and Enjoy! Ian

[MANOJ SRIVASTAVA]

Hi Robert


cat filename | sed -e "1.$ s/\[//g" > new file



Manoj Srivastava

[V. V. Ravi Kumar_1]

hi try this,

sed 's/\[//g' (file name) > (new file name)

hope this helps
regds
ravi