Then it might be the funny character. Also know that the sed is not updating the file, it's just printing to the screen, so if you're xpecting the file to be updated, it's not.
Is the input you showed actual input or "example" input?
If it's actual, then there you have various other options:
Hi Scott!
Thank you!
these both command are working fine, but i dont get successful with the sed-commands. However -
is my favorit, because its easy and smartish - and for the only bracket in the row the accurate remedy.
Thanks a lot.
IMPe
Can someone please tell me how to do this...
input file - /etc/group:
wheel:*:0:root,timber
daemon:*:1:
mysql:*:88:
...etc...
giants:*:1001:dalton,bandit
dalton:*:1002:
bandit:*:1003:
output file (my goal):
giants:*:1001:
dalton:*:1002:
bandit:*:1003:I've come up with this:
... (3 Replies)
Hi,
I have a sql file that runs something like this
vi Test.sql
REVOKE EXECUTE ON DEMO_USER.SQC_SAMP FROM PUBLIC;
REVOKE EXECUTE ON DEMO_USER.SQC_SAMP FROM DEMO_READ;
REVOKE SELECT ON DEMO_USER.DEMO_NOMINEE_TEST FROM DEMO_READ;
REVOKE EXECUTE ON DEMO_USER.SQC_SAMP FROM... (3 Replies)
Hi
I tried to extract 19 characters (default) enclosed with in tag from a file using cut command. If the characters comprises of double space, the cut command gives the output with a single spacing.
file 1
<name>Kumar Rajasekaran</name>
cut -c7-26 "file1"
the out put i received is ... (48 Replies)
Hi,
I am trying to strip out leading and trailing brackets from a word.
for example,
I have a value, in a file. I want to strip out the leading and trailing brackets it and should get the value Running.
I am using the following statement but in vain.
grep "Workflow run status:" <... (4 Replies)
Hi All,
I have a text file which looks like this:
computer programming
systems engineering
I want to get rid of these square brackets and also the text that is inside these brackets. So that my final text file looks like this:
computer programming
systems engineering
I am using... (3 Replies)
Hi All,
I'm a newbie here, i'm just wondering how can i include my sftp command, here is my code. see below.
test -f /home/1.txt && sed -i "s/$/&,pogi" /home/1.txt
my sftp command: how can i insert my sftp command in my code above?
sftp ${USER}@${HOST} <<-EOF
cd ${INPUT_DONE}
... (0 Replies)
Both of these fail. One has two form feeds, the second form leaves all the backslashes.
bold='\(code\|command\|var\|samp\|option\|strong\)'
sed -e "s;@${bold}{"'\(*\)};\fB\2\fP;g'
sed -e "s;@${bold}{"'\(*\)};\\fB\2\\fP;g'
Obviously, I'm trying to change texi markup into man page markup, but it... (3 Replies)
I'm trying to convert this line:
to
\ with sed.
This is what I have so far:
sed -e 's/\]*\)\]/\\\\\/'
but this still gives me .
Any suggestions? (15 Replies)
1. The problem statement, all variables and given/known data:
I have to write a script using sed, which delete everything between curly brackets and the brackets themself. The brackets might be nested.
The input-file is:
aaa { bbb ccc { ddd eee } fff { ... (2 Replies)
I've got a sed shell script I've been using for quite a while to do batch find/replace operations on .xml files containing various types of text entries. This is the script I use:
#!/bin/bash
while read text_old text_new; do
sed_script+="s/$text_old/$text_new/g;"
done < trans_old_to_new... (9 Replies)
Discussion started by: Agreppa
9 Replies
LEARN ABOUT POSIX
regex
regex(1F) FMLI Commands regex(1F)NAME
regex - match patterns against a string
SYNOPSIS
regex [-e] [ -v "string"] [ pattern template] ... pattern [template]
DESCRIPTION
The regex command takes a string from the standard input, and a list of pattern / template pairs, and runs regex() to compare the string
against each pattern until there is a match. When a match occurs, regex writes the corresponding template to the standard output and
returns TRUE. The last (or only) pattern does not need a template. If that is the pattern that matches the string, the function simply
returns TRUE. If no match is found, regex returns FALSE.
The argument pattern is a regular expression of the form described in regex(). In most cases, pattern should be enclosed in single quotes
to turn off special meanings of characters. Note that only the final pattern in the list may lack a template.
The argument template may contain the strings $m0 through $m9, which will be expanded to the part of pattern enclosed in ( ... )$0 through
( ... )$9 constructs (see examples below). Note that if you use this feature, you must be sure to enclose template in single quotes so
that FMLI does not expand $m0 through $m9 at parse time. This feature gives regex much of the power of cut(1), paste(1), and grep(1), and
some of the capabilities of sed(1). If there is no template, the default is $m0$m1$m2$m3$m4$m5$m6$m7$m8$m9.
OPTIONS
The following options are supported:
-e Evaluates the corresponding template and writes the result to the standard output.
-v "string" Uses string instead of the standard input to match against patterns.
EXAMPLES
Example 1: Cutting letters out of a string
To cut the 4th through 8th letters out of a string (this example will output strin and return TRUE):
`regex -v "my string is nice" '^.{3}(.{5})$0' '$m0'`
Example 2: Validating input in a form
In a form, to validate input to field 5 as an integer:
valid=`regex -v "$F5" '^[0-9]+$'`
Example 3: Translating an environment variable in a form
In a form, to translate an environment variable which contains one of the numbers 1, 2, 3, 4, 5 to the letters a, b, c, d, e:
value=`regex -v "$VAR1" 1 a 2 b 3 c 4 d 5 e '.*' 'Error'`
Note the use of the pattern '.*' to mean "anything else".
Example 4: Using backquoted expressions
In the example below, all three lines constitute a single backquoted expression. This expression, by itself, could be put in a menu defini-
tion file. Since backquoted expressions are expanded as they are parsed, and output from a backquoted expression (the cat command, in this
example) becomes part of the definition file being parsed, this expression would read /etc/passwd and make a dynamic menu of all the login
ids on the system.
`cat /etc/passwd | regex '^([^:]*)$0.*$' '
name=$m0
action=`message "$m0 is a user"`'`
DIAGNOSTICS
If none of the patterns match, regex returns FALSE, otherwise TRUE.
NOTES
Patterns and templates must often be enclosed in single quotes to turn off the special meanings of characters. Especially if you use the
$m0 through $m9 variables in the template, since FMLI will expand the variables (usually to "") before regex even sees them.
Single characters in character classes (inside []) must be listed before character ranges, otherwise they will not be recognized. For exam-
ple, [a-zA-Z_/] will not find underscores (_) or slashes (/), but [_/a-zA-Z] will.
The regular expressions accepted by regcmp differ slightly from other utilities (that is, sed, grep, awk, ed, and so forth).
regex with the -e option forces subsequent commands to be ignored. In other words, if a backquoted statement appears as follows:
`regex -e ...; command1; command2`
command1 and command2 would never be executed. However, dividing the expression into two:
`regex -e ...``command1; command2`
would yield the desired result.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO awk(1), cut(1), grep(1), paste(1), sed(1), regcmp(3C), attributes(5)SunOS 5.10 12 Jul 1999 regex(1F)