Hello There!
I am trying to write this SIMPLE script in Bourne Shell but I keep on getting syntax errors. Can you see what I am doing wrong? I've done this before but I don't see the difference. I am simply trying to take the day of the week from our system and when the teachers sign on I want... (7 Replies)
This "SHOULD" be a simple question,
but looking through several books has turned up nothing,
so I turn once again to the experts!!
How do you vi a file so that you can see special characters.
I believe my /etc/passwd file is being corrupted during an upgrade process, however the files... (6 Replies)
hi guys
trying to understand what this line means
sed is a stream editor and i understand that, i have a file already selected
i want to edit so i use -e
sed -e
the next stesp is s/$*
s is a subsititute replacement
sed -e s/$*//g
$ is in reference of the last line
/g makes it... (2 Replies)
Hi guys
sed -e "s/$<//g"
the $< can allow me to assign an input value to the variable right?
do the double quotes check the previous context? (1 Reply)
from command prompt I did grep two words on a same line for eg: grep abc | grep xyz and I got tht particular line, but I want to know when I vi that file how to directly search for that particular line? I appreciate if any one can provide answer, thanks in advance (2 Replies)
I have a line
EXTDIR=`echo $i | sed 's/\-tar.gz//'`
which looks for files ending in -tar.gz, i would like to increase the functionality so that it looks for .tar.gz files as well as -tar.gz. Do i put the - in square brackets with a dot ? like this
EXTDIR=`echo $i | sed 's/\tar.gz//'`
... (1 Reply)
hey,
Im just wondering is there away to get sed to read from a variable
eg
it doesn't seem to work, i really need to be able to recursively change the same data set... (2 Replies)
Hello,
I have the following line in one of my shell scripts. It works fine when the search string($SERACH_STR) exists in the logfile($ALERTLOG) but if the search string does not exist this line errors out at run time. Is there a way to make this line return 0 if it is not able to find the... (4 Replies)
Hi fellow linux-ers,
I have a quick question for you. I have the following text, which I would like to modify:
10 121E(121) 16 Jan
34S 132E 24 Feb
42 176E(176) 18 Sep
21S 164E 25 May
15 171W(-171) 09 Jul
How can I do the following 2 modifications using sed and/or awk?
1. in 1st column,... (1 Reply)
Discussion started by: lucshi09
1 Replies
LEARN ABOUT HPUX
echo
echo(1) General Commands Manual echo(1)NAME
echo - echo (print) arguments
SYNOPSIS
[arg] ...
DESCRIPTION
writes its arguments separated by blanks and terminated by a new-line on the standard output. It also understands C-like escape conven-
tions; beware of conflicts with the shell's use of
write an alert character
backspace
print line without appending a new-line
form-feed
new-line
carriage return
tab
vertical tab
backslash
the 8-bit character whose
ASCII code is the 1-, 2-, 3- or 4-digit octal number n, whose first character must be a zero.
write an 8-bit value that is the zero-, one-, two- or three-digit octal number
num
is useful for producing diagnostics in command files and for sending known data into a pipe.
Notes
Berkeley differs from this implementation. The former does not implement the backslash escapes. However, the semantics of the escape can
be obtained by using the option. The echo command implemented as a built-in function of follows the Berkeley semantics (see csh(1)).
EXTERNAL INFLUENCES
Environment Variables
determines the interpretation of arg as single and/or multi-byte characters.
If is not specified in the environment or is set to the empty string, the value of is used as a default for each unspecified or empty vari-
able. If is not specified or is set to the empty string, a default of "C" (see lang(5)) is used instead of If any internationalization
variable contains an invalid setting, behaves as if all internationalization variables are set to "C". See environ(5).
International Code Set Support
Single- and multi-byte character code sets are supported.
AUTHOR
was developed by OSF and HP.
SEE ALSO sh(1).
BUGS
No characters are printed after the first This is not normally a problem.
STANDARDS CONFORMANCE echo(1)