Thanks for your quick replay,
I got another issue.
I tried it in command line, it works
but if I put in script, it doesn't work.
below is the portition, it print out "here", but doesn't delete the line
Thanks again.
What is the easiest way to delete a line from a file?
I have a file that contains list for Domestic and Foreign customers.
I want to delete all lines staring with Foreing.
TIA (4 Replies)
Hi all,
I would like to delete a line in file.txt which has a list of filename.
example:
file_a
file_b
file_c
lets say i have file_b in my directory, then i should delete file_b in file.txt and get output file.txt with only file_a and file_b.
Below is my script, my result is still ... (12 Replies)
Hi ,
I have a file it content is like that
/vol.nas/u08/aip_triage/hany/Tesko/:CC::RPAS
/home/biblawh/myscript:CC::RPAS
i need to search for a certain pattern inside that file and delete the line if i find this pattern without redirecting the output into another file .
so i used the... (0 Replies)
Hi,
I have a file which contains entries with different numbers, for example:
275|24hroff|sel,fill,dbw|
2758|24hroff|sel,fill,dbw|
2765|24hroff|sel,fill,dbw|
2920|24hroff|sel,fill,dbw|
I need to delete a line which contains certian number, for instance 275
I was trying to use 'sed' but... (3 Replies)
Hi,
Need to delete a line from a file, file is too large so cannot use vi.
I know the line number that has to be deleted...
How can this be done ? (8 Replies)
Hello, I have to deal with several files that will be named something like this:
E00001.TXT, E00002.TXT etc.
Each file will have a alpha character on the first position of the first line which I want to place in a variable, then delete the entire line leaving the remainder of text. This new file... (6 Replies)
hi all,
i have trackfile.txt which contains the data as
0 /home8/mc09ats/UnixCw/t1
1 /home8/mc09ats/UnixCw/t2
2 /home8/mc09ats/UnixCw/t3
3 /home8/mc09ats/UnixCw/t4
if user says delete 1 then i want to delete 1 /home8/mc09ats/UnixCw/t2
line from... (3 Replies)
Hi ,
i have a file with data as below.This is same file. But actual file contains to many rows.
i want to search for a string "Field 039 00" and delete that line and previous 3 lines in that file.. Can some body suggested me how can i do using either sed or awk command ?
Field 004... (7 Replies)
Hi, I want to do file1 to file2. Rows will be different every time. Thanks.
file1
Fru-Name :BCNMB-B Fru-Location :/chassis-1/motherboard-1 Node-Name :LMP-1-1-1
Fru-Name :BMPP2-B Fru-Location :/chassis-1/slot-1 Node-Name :CFPU-0
Fru-Name :BMPP2-B Fru-Location... (2 Replies)
Discussion started by: ozcanaydin
2 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS --debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.16.3 2010-06-11 SHELL-QUOTE(1)