Remove non numeric values from a variable Post: 302294623

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Replace spaces with 0's having numeric values.

What could be the regular expression with gsub function in awk to replace all numerics having spaces before to be replaced with 0s?

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hi all, i'm very new to scripting and have the folllowing issue. I have used a few commands to get a list of numbers, but I need to strip away the non-numeric ones, and then need a total of all values. any ideas? root@unixserver # cat myfile | awk '{print $8}'| sort -rn 1504 1344 896 704...

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I am getting back on the C++ programming after many years away. I recently received an SDK that has code like this where numeric values end in 'U'. What does this mean? if ((ptr % 16U) == 0U) return buffer;

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Hi All , I have a small code that checks pattern of digits entered in unix mode . $ echo 201202 | wc -c 7 /* output*/ When i run same command in AIX 5.1 , i am getting output with some initial blanks $ echo 201202 | wc -c 7 ...

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I have a code like this v_num=9 comp_num=39 if then echo "pass" fi echo "end" I am getting an error ksh: v_num=99 comp_num=39 if then echo "pass" fi echo "end"

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Sort by second column numeric values

From googling and reading man pages I figured out this sorts the first column by numeric values. sort -g -k 1,1 Why does the -n option not work? The man pages were a bit confusing. And what if I want to sort the second column numerically? I haven't been able to figure that out. The file...

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Replace a numeric values in a certain column

Hi All, I am trying to replace a certain value from one place in a file . In the below file at position 35 I will have 8 I need to modify all 8 in that position to 7 I tried awk '{gsub("8","7",$35)}1' infile > outfile ----> not working sed -i 's/8/7'g' infile --- it is replacing all...

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ttyrec

TTYREC(1)						      General Commands Manual							 TTYREC(1)

NAME

       ttyrec - a tty recorder

SYNOPSIS

       ttyrec [-a] [-u] [-e command] [file]

DESCRIPTION

       Ttyrec  is a tty recorder.  It is a derivative of script(1) command for recording timing information with microsecond accuracy as well.	It
       can record emacs -nw, vi, lynx, or any programs running on tty.

       Ttyrec invokes a shell and records the session until the shell exits.  Recorded data can be played back with ttyplay(1).  If  the  argument
       file is given, the session will be recorded in that file.  Otherwise, ttyrecord is used as default.

OPTIONS

       -a     Append the output to file or ttyrecord, rather than overwriting it.

       -u     With  this  option, ttyrec automatically calls uudecode(1) and saves its output when uuencoded data appear on the session.  It allow
	      you to transfer files from remote host.  You can call ttyrec with this option, login to the remote host and invoke uuencode(1) on it
	      for the file you want to transfer.

       -e command
	      Invoke command when ttyrec starts.

ENVIRONMENT

       SHELL  If  the  variable SHELL exists, the shell forked by ttyrec will be that shell.  If it's not set, the Bourne shell is assumed.  (Most
	      shells set this variable automatically).

SEE ALSO

       script(1), ttyplay(1), ttytime(1), uuencode(1), uudecode(1)

																	 TTYREC(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Replace spaces with 0's having numeric values.

Discussion started by: videsh77

2. Shell Programming and Scripting

stripping out non-numeric values in a list

Discussion started by: badoshi

3. Programming

numeric values ending in 'U'

Discussion started by: sneakyimp

4. Shell Programming and Scripting

How to check if the file contains only numeric values

Discussion started by: sunilmenhdiratt