Hi guys,
with sed when I need to make a substitution inside a line containing a specific keyword, I usually use:
sed '/keyword/ s/cat/dog/g'
This will substitute "cat" with "dog" on those lines containing "keyword". Now I want to use this inside vi, for several reason that I cannot... (2 Replies)
How...
can I read input by a user character by cahracter. And assign each character from the string to a variable?
Any help would be greatly appreciated!
Thank you! (1 Reply)
Hi all,
Does anyone know how to code in ksh that will remove the first character in a string variable and replace that variable without the first character?
Example:
var1=ktest1 will become var1=test1
var2=rtest2 will become var2=test2
Need help please. (10 Replies)
Hallo!
Example.
#!/bin/bash
BACKUP_DIR=/home/userx/backups/evolution
echo $BACKUP_DIR
# delete the first character from the string
BACKUP_DIR=$(echo $BACKUP_DIR | cut -c 2-)
echo $BACKUP_DIR
It works. It does want I want, delete the first character from string in the... (11 Replies)
Hey Guys,
I have text such as this.
28003,ALCORN,2
28009,BENTON,2
28013,CALHOUN,2
28017,CHICKASAW,2
47017,CARROLL,2
05021,CLAY,0
The last digit after the final "," is a variable value. This is the base file. I have to do further execution on this file later and I need to update the... (7 Replies)
echo "hello123" | tr -dc '' | wc -c
using this command i can count the no of times a number from 0-9 occurs in the string "hello123"
but how do i save this result inside a variable?
if i do
x= echo "hello123" | tr -dc '' | wc -c
that does not work...plz suggest..thanks (3 Replies)
I see a millioin ways to do this with echo, but what I wan to do is assign a variable the "nth" character of an incoming parameter to a ksh script.
$1 will be "pia"
I need to assign the first character to stmttype. (10 Replies)
Hi Perl users,
I have another problem with text processing in Perl. I have a file below:
Linux Unix Linux Windows SUN
MACOS SUN SUN HP-AUX
I want the result below:
Unix Windows SUN
MACOS HP-AUX
so the duplicate string will be removed and also the keyword of the string on... (2 Replies)
Hi
I want to implement something like this:
if( keyword1 exists)
then
check if(keyword2 exists in the same line)
then replace keyword 2 with New_Keyword
else
Add New_Keyword at the end of line
end if
eg:
Check for Keyword JUNGLE and add/replace... (7 Replies)
Hello.
I have a string variable named L_TEMP to test a very simple filter.
L_TEMP="50AwL.|KWp9jk"
I want to insert a non printable character between K and W.
I have try this :
linux-g65k:~ # a='50AwL.|K'
linux-g65k:~ # b='Wp9jk'
linux-g65k:~ # L_TEMP="$a$'\x07'$b"
linux-g65k:~ # echo... (6 Replies)
Discussion started by: jcdole
6 Replies
LEARN ABOUT DEBIAN
gethead
gethead(1) General Commands Manual gethead(1)Name
gethead - Print FITS or IRAF header keyword values
Synopsis
gethead [-hptv] [-d pathname] [-n num] <FITS or IRAF file> kw1 kw2 ... kwn
Description
Print values of the specified keywords from the given image header. By default they are all listed on one line, separated by spaces. The
-v flag causes the keyword names and values to be printed, one keyword per line. To read keywords from a list of files, substitute @<list-
file> for the file names on the command line. To read a lot of keywords, put them, one per line, in a file and substitute @<keylistfile>
on the command line. If two @ commands are present, the program will figure out which contains file names and which contains keywords.
Options-a List file name even if keywords are not found
-d Root directory for input files (default is cwd)
-e Output keyword=value's on one line per file
-f Never print filenames (default is to print them if more than one)
-g Output keyword=value's on one line per keyword
-h flag causes the keyword names to be printed at top of columns.
-n Number of decimal places in numeric output
-o OR conditions instead of ANDing them
-p Print full pathnames of files
-t flag causes the output to be in tab-separated tables with keyword column headings.
-u Always print ___ if keyword not found, event if only one keyword in search
-v Print output as <keyword>=<value>, one per line
Web Page
http://tdc-www.harvard.edu/software/wcstools/gethead.html
Author
Doug Mink, SAO (dmink@cfa.harvard.edu)
6 July 2001 WCSTools gethead(1)