12-30-2006
Vino : i've test your sed command and it works very well
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi all,
In unix shell, I want to get two strings ending with "." and starting with "." from a string "chan.txt"
For example, a string "chan.txt".
The first string is "chan"
The second string is "txt"
Yours
Wilson (1 Reply)
Discussion started by: wilsonchan1000
1 Replies
2. Shell Programming and Scripting
hi All,
cat file_name | awk /^~/'{print $1","$2","$3","$4}' | sed -e 's/~//g'
Can this be done by using sed or awk alone (4 Replies)
Discussion started by: harshakusam
4 Replies
3. Shell Programming and Scripting
Sed: Delete lines in files that contain other than 'a-z' ,'0-9', '.' and '-'
Hello,
I'm looking for a shell command or maybe a small php loop to delete lines in files.txt (in the same directory) that contain character other then 'a-z' ,'0-9', '.' and '-'
All line that have characters like... (4 Replies)
Discussion started by: devlin
4 Replies
4. Shell Programming and Scripting
I wrote a script to delete files which are older than "x" days, if the size of the directory is greater than "y"
#!/bin/bash
du -hs $1
while read SIZE ENTRY
do
if ;
then
find $1 -mtime +$2 -exec rm -f {} \;
echo "Files older than $2 days deleted"
else
echo "free Space available"... (4 Replies)
Discussion started by: JamesCarter
4 Replies
5. Shell Programming and Scripting
logs:
"/home/abc/public_html/index.php"
"/home/abc/public_html/index.php"
"/home/xyz/public_html/index.php"
"/home/xyz/public_html/index.php"
"/home/xyz/public_html/index.php"
how to use "cut" or "awk" or "sed" to get the following result:
abc
abc
xyz
xyz
xyz (8 Replies)
Discussion started by: timmywong
8 Replies
6. Shell Programming and Scripting
Hi,
I have a file which has lines like these :
I want to trim everything from the left till ">" such that the file looks like :
If you have any ideas how to do this in 1-2 commands please help.
Thanks. (3 Replies)
Discussion started by: sinpeak
3 Replies
7. Shell Programming and Scripting
I am trying to find out which files in a group of files have lines ending in r. What I have is this:
cat /tmp/*RECORDS| if grep r$>/dev/null; then echo "yes";else echo"no";fi
Records is more than one file. There are the following files
TEST-RECORDS
/volume/testing
/volume/programs
... (2 Replies)
Discussion started by: newbie2010
2 Replies
8. Shell Programming and Scripting
I have a bunch of random character lines like ABCEDFG. I want to find all lines with "A" and then change any "E" to "X" in the same line. ALL lines with "A" will have an "X" somewhere in it. I have tried sed awk and vi editor. I get close, not quite there. I know someone has already solved this... (10 Replies)
Discussion started by: nightwatchrenba
10 Replies
9. Shell Programming and Scripting
Dear Ladies & Gents,
I have a requirement to delete all the log files in /var/log/test directory that are older than 10 days and their first line begin with "MSH" or "<?xml" or "FHS". I've put together the following BASH script, but it's erroring out:
for filename in $(find /var/log/test... (2 Replies)
Discussion started by: Hiroshi
2 Replies
10. Shell Programming and Scripting
So I'm on an AIX machine.
And sed is not applying /d "delete line" option when I also include match word options \< and \>
examples...
echo cat | sed '/\<cat\>/d'will return cat for some reason
echo cat | sed "/\<cat\>/d"will also still return cat.
Of course i can just run
echo cat... (9 Replies)
Discussion started by: escooter87
9 Replies
LEARN ABOUT DEBIAN
plan9-tail
TAIL(1) General Commands Manual TAIL(1)
NAME
tail - deliver the last part of a file
SYNOPSIS
tail [ +-number[lbc][rf] ] [ file ]
tail [ -fr ] [ -n nlines ] [ -c nbytes ] [ file ]
DESCRIPTION
Tail copies the named file to the standard output beginning at a designated place. If no file is named, the standard input is copied.
Copying begins at position +number measured from the beginning, or -number from the end of the input. Number is counted in lines, 1K
blocks or bytes, according to the appended flag or Default is -10l (ten ell).
The further flag causes tail to print lines from the end of the file in reverse order; (follow) causes tail, after printing to the end, to
keep watch and print further data as it appears.
The second syntax is that promulgated by POSIX, where the numbers rather than the options are signed.
EXAMPLES
tail file
Print the last 10 lines of a file.
tail +0f file
Print a file, and continue to watch data accumulate as it grows.
sed 10q file
Print the first 10 lines of a file.
SOURCE
/src/cmd/tail.c
BUGS
Tails relative to the end of the file are treasured up in a buffer, and thus are limited in length.
According to custom, option +number counts lines from 1, and counts blocks and bytes from 0.
Tail is ignorant of UTF.
TAIL(1)