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deleting a pattern from a file

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# 1  
Old 04-30-2009
deleting a pattern from a file
say i have a file with the following contents

0x20
0x20
0xc23886
> 0xc12354
> 0xc567555555

i want to delete "> " pattern and keep the rest of the file
# 2  
Old 04-30-2009
You can use sed to trim the unwanted characters.

Code:
sed -i 's/^> //' file
# -i overwrite file with new content
# s/^> //'  substitute begin of line "^", greaterthan ">", {space} with nothing.

# 3  
Old 04-30-2009
Code:
printf '1,$s/^>//\n.\nwq' |ex - myFile

# 4  
Old 04-30-2009
thanks
# 5  
Old 04-30-2009
Quote:
Originally Posted by ldapswandog
You can use sed to trim the unwanted characters.

Code:
sed -i 's/^> //' file
# -i overwrite file with new content
# s/^> //'  substitute begin of line "^", greaterthan ">", {space} with nothing.

This is GNU-ism (not that there's anything wrong with that....[(c)Seinfeld])
# 6  
Old 04-30-2009
0xc0a80101
0xc0a80108
0xc0a80129
0x20
0xc0a80201
0xc0a80201
0xc0a80201
0xc0a80201
0xc0a80202
0xc0a80201
0xc0a80202
0xc0a80201
0x20

I want to sort this file.
The command that i am using is sort -u diff1.txt | tee diff1.txt
but diff1.txt is always empty.
what am I doing wrong
# 7  
Old 04-30-2009
Quote:
Originally Posted by lassimanji
0xc0a80101
0xc0a80108
0xc0a80129
0x20
0xc0a80201
0xc0a80201
0xc0a80201
0xc0a80201
0xc0a80202
0xc0a80201
0xc0a80202
0xc0a80201
0x20

I want to sort this file.
The command that i am using is sort -u diff1.txt | tee diff1.txt
but diff1.txt is always empty.
what am I doing wrong
you cannot 'tee' to the same file you're sort-ing.
Code:
sort -u diff1.txt | tee diff1_sorted.txt

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