Hi,
I am having problems using grep to extract only 3,4 or 5 digit numbers from a text file, using:
grep '\<\{3,5\}\>' test.txt
or
grep '\{3,5\}' test.txt
or
egrep '{3,5}' test.txt
I would appreciate any help that anyone can give me
thanks (1 Reply)
Hi all,
For a intro UNIX course I'm taking, I need to use the command "tr" to display a file on standard output without any newlines (all on one line).
I assume I would start with "cat filename | tr" but don't know what to put after tr.
Any ideas would be lovely!
Thanks. (3 Replies)
Hi Folks,
I am new to ksh, i have informatica parameter file that i need to update everyday with shell script. i need your help updating this file with new parameters.
sample data
$$TABLE1_DATE=04-27-2011
$$TABLE2_DATE=04-23-2011
$$TABLE3_DATE=03-19-2011
.......Highligned... (4 Replies)
I would like to print string between two sequent digits and concatenate it into one single line.
input.txt
99 cord, rope, strand, twine,
twist, 100 strand, twine, twist,
cord, rope 101 strand, twine,
twist, twine, twist, cord, rope
105 cord, rope ,twi ... (8 Replies)
Hello all! I've looked all over the internet and this site and have come up a loss with an easy way to make a bash script to do what I want to do. I have a file with a naming convention as follows:
2012-01-18 string of words here 123.jpg
2012-01-18 string of words here 1234.jpg
2012-01-18... (2 Replies)
Hi all, I'm quite newbie in shell scripting but I found a problem what I cant solve.
I have a .txt file which looks like this:
/22/
/23/
/24/
and so on and I'd need to make it look like this:
/22/|/23/|/24/|...and so on.
these numbers are growing and has lines like this /2a/ as well.... (15 Replies)
I'm trying to grep lines where the digits at the end of each line are greater than digits. Tried this but it will only allow me to specify 2 digits. Any ideas would greatly be appreciated. grep -i '\<\{3,4,5\}\>' file
---------- Post updated at 05:58 PM ---------- Previous update was at 05:41... (1 Reply)
Hello,
This is similar to a previous post, where I was trying to eliminate lines where column #1 is duplicated. If it is a duplicate, the line with the greater value in column #2 should be deleted. In this new case, I need to test duplication with the first three digits in column #1 (ignoring the... (6 Replies)
Discussion started by: palex
6 Replies
LEARN ABOUT SUNOS
return
exit(1) User Commands exit(1)NAME
exit, return, goto - shell built-in functions to enable the execution of the shell to advance beyond its sequence of steps
SYNOPSIS
sh
exit [n]
return [n]
csh
exit [ ( expr )]
goto label
ksh
*exit [n]
*return [n]
DESCRIPTION
sh
exit will cause the calling shell or shell script to exit with the exit status specified by n. If n is omitted the exit status is that of
the last command executed (an EOF will also cause the shell to exit.)
return causes a function to exit with the return value specified by n. If n is omitted, the return status is that of the last command exe-
cuted.
csh
exit will cause the calling shell or shell script to exit, either with the value of the status variable or with the value specified by the
expression expr.
The goto built-in uses a specified label as a search string amongst commands. The shell rewinds its input as much as possible and searches
for a line of the form label: possibly preceded by space or tab characters. Execution continues after the indicated line. It is an error to
jump to a label that occurs between a while or for built-in command and its corresponding end.
ksh
exit will cause the calling shell or shell script to exit with the exit status specified by n. The value will be the least significant 8
bits of the specified status. If n is omitted then the exit status is that of the last command executed. When exit occurs when executing
a trap, the last command refers to the command that executed before the trap was invoked. An end-of-file will also cause the shell to exit
except for a shell which has the ignoreeof option (See set below) turned on.
return causes a shell function or '.' script to return to the invoking script with the return status specified by n. The value will be the
least significant 8 bits of the specified status. If n is omitted then the return status is that of the last command executed. If return
is invoked while not in a function or a '.' script, then it is the same as an exit.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO break(1), csh(1), ksh(1), sh(1), attributes(5)SunOS 5.10 15 Apr 1994 exit(1)