can someone help me with the find and replace command.
I have a input file which is in the below format:
0011200ALN00000000009EGYPT 000000000000199900000
0011200ALN00000000009EGYPT 000000000000199900000
0011200ALN00000000008EGYPT 000000000000199800000
0011200ALN00000000009EGYPT ... (20 Replies)
I am writing a shell script that checks all .c files to see if they use fprintf or printf. If a file does, then the line #include <stdio.h> is added to the top of the file, unless it's already there.
This is what I've got:
#!/bin/sh
egrep -l f?printf *.c | while read file;
do sed -i '1i\... (2 Replies)
Hi,
having some problems getting commandline mail to work for root user in ubuntu.
Ive installed the following packages - msmtp & mailx and the cert for gmail.
I've created 3 files: mailrc and msmtprc in /home/username directory
and /etc/exim4/passwd.client
mailrc
------
set... (0 Replies)
Hi Folks,
I was given a task to append three IP's at the end of a specific (and unique) line within a file on multiple servers.
I was not able to do that with the help of a script. All I could was:
for i in server1 server2 server3 server4
do
ssh $i
done
I know 'sed' could be used to... (5 Replies)
Hi,
How can i split a line of string into two lines.
I would like to format the below string:
Filesystem 1M-blocks Used Available Use% Mounted on /abc/def/xyz 34567 2345 12345 90% /test
to
Filesystem 1M-blocks Used Available Use% Mounted on
/abc/def/xyz 34567 2345 12345 90% /test
... (4 Replies)
Hello Guys,
I request anyone to do me a small help in using diff command for following.
I am trying to compare two files for content and wish to keep the content after the comparison (The resultant file can't be blank)
However, the first lines would be different in both files and I need diff... (2 Replies)
Hi..wanted a help regarding inserting a newline in an xml file using shell script.
i've an xml file which has the following data.
1. <?xml version="1.0" encoding="UTF-8"?>
2. <group>
3. <name>odcm</name>
4. contd....
I need to insert two new lines after line#2, so that the output... (14 Replies)
I have a file which has data in 8 lines:
10
34
6
1
4
46
67
31
I am trying to read each value into each different variable so that I use these variables in preparing my report.
Another option is to dynamically print each line values in the report like below:
users with privA:... (2 Replies)
Hi,
I had generated a report in my tool as followsoutput.txt
43.35
9
i needed the script to generate a new file like below
i want to append the text to each of these lines of my filenewoutputfile.txt should be
Total Amount : 43.35
Record Count:9
Regards,
Vasa Saikumar.
... (2 Replies)
Discussion started by: hemanthsaikumar
2 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)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 v5.8.4 2005-05-03 SHELL-QUOTE(1p)