Hi, i've got the following:
a=`echo $b | grep '^.*/'`
i'm storing in the variable the value of the variable b only if it has a / somewhere.
It works, but i don't want to print the value. How do i give the value of b to the grep command without the echo?
thanks! (5 Replies)
I am performing a grep command and I need to know how to echo "NONE" or "0" to my file if grep does not find what i am looking for.
echo What i found >> My_File
grep "SOMETHING" >> My_File
I am sure this is easy, I am sort of new at this!
Thanks (2 Replies)
Hi,
I am cutting data from a fixed length test file and then writing out a new record using the echo command, the problem I have is how to stop multiple spaces from being written to the output file as a single space.
Example:
cat filea | while read line
do
field1=`echo $line | cut -c1-2`
... (6 Replies)
Hello,
well what I'm trying to do is to remove underscores from filenames and leaving empty spaces instead:
arturas@Universe:/windows/Center/training$ ls
big_file failas su shudu
arturas@Universe:/windows/Center/training$ a=big_file
arturas@Universe:/windows/Center/training$ mv $a `echo... (8 Replies)
Is there any way in a script to print out the commands being ran? In DOS script, there is the "@echo on" and "@echo off".
so I have a script like this:
#!/bin/ksh
echo "hello there. moving files."
<turn on echoing here>
cp thisfile.txt thatfile.txt
cp whatfile.prop whyfile.prop
<turn... (2 Replies)
My current line command is as follows:
echo -n "text: " ; grep "blah text" ../dir1/filename | wc -l
The output to the screen is as needed, but how do I print to a text file? (9 Replies)
Is there an environment issue that would not allow the following not store and pass the value into this field:
underScorePresent=`echo $USER | grep "_" | wc -l`
It is running on a new redhat 6.5 OS. The value $USER is set to cpac. It is a vendor code and they are saying it is environment... (1 Reply)
version info : Fedora 28 (Kernel version: 4.16.12-300)
shell : bash
Using echo command , if I redirect a text like "Chocolate" to a file , all the contents in the file are overwritten as shown below.
# cat /tmp/someTest
Hello world
One more Hello world
myLine3
# echo... (4 Replies)
Discussion started by: kraljic
4 Replies
LEARN ABOUT DEBIAN
sc_warts2text
SC_WARTS2TEXT(1) BSD General Commands Manual SC_WARTS2TEXT(1)NAME
sc_warts2text -- simple dump of information contained in a warts file.
SYNOPSIS
sc_warts2text [-d ip2descr-file] [file ...]
DESCRIPTION
The sc_warts2text utility provides a simple dump of information contained in a sequence of warts files. The output is the same as that which
would have been provided by scamper if the text output option had been chosen instead of the warts output option when the data was collected.
The options are as follows:
-d ip2descr-file
specifies the name of a file with IP-address, description mappings, one mapping per line. See the examples section for further
information.
While the output of sc_warts2text is structured and suitable for initial analyses of results, the format of the output is not suitable for
automated parsing and analysis as the output of sc_warts2text will change overtime with no regard to backwards compatibility. Analyses of
the contents of a warts file should be made using specialised programs which link against the scamper file API.
EXAMPLES
The command:
sc_warts2text file1.warts file2.warts
will decode and print the contents of file1.warts, followed by the contents of file2.warts.
The command:
gzcat file1.warts.gz | sc_warts2text
will print the contents of the uncompressed file supplied on stdin.
Given a set of IP-address, description pairs in a file name mappings.txt:
192.0.2.1 "foo"
192.0.2.2 "bar"
then the command gzcat file1.warts.gz | sc_warts2text -d mappings.txt will print the description associated with a given destination address
before each result is presented.
SEE ALSO scamper(1), sc_wartsdump(1)AUTHORS
sc_warts2text is written by Matthew Luckie <mjl@luckie.org.nz>.
BSD October 15, 2010 BSD