Hi guys,
I am not very experienced in writing ksh scripts and I am trying to write a piece of code that indicates if a given string contains only digits and no alphabet (upper or lower case). If i write it my way it would turn out to have a lot of comparisons.. :eek:
Thanks a lot in... (3 Replies)
Hi guys,
I have a text file report generated from egrepping multiple files.
The text files themselves are obtianed after many succesive refinements, so they contain already the desired number, but this is surrounded by unwanted characters, newlines, spaces, it is not always at the start of the... (6 Replies)
I would like to search between two a string. I thought this would be easy. The is always at the beginning of a line.
The code:
gawk '/^/{d=$1},/searchstring/,/^(d+1)/'
or
gawk '/^/,/searchstring/,/^/'
did not return the desired result.
inputfile.txt
999 some text searchstring some... (6 Replies)
I would like to extract a digit from $0 starting 2,30 to 3,99 or 2.30 to 3.99
Can somebody fix this?
awk --re-interval '{if($0 ~ /{1}{2}/) {print FILENAME, substr($0,index($0,/{1}{2}/) , 4)}}'input
abcdefg sdlfkj 3,29 g. lasdfj
alsdfjasl 2.86 gr. slkjds sldkd
lskdjfsl sdfkj kdjlksj 3,34 g... (4 Replies)
I have a string
string="Please have a nice day and sleep well Replace_12123_31233_32134_12342 Good day"
How do i replace "Replace_12123_31233_32134_1234" in the above string.??
Please help.
Regards,
Qwerty (3 Replies)
Hello,
I have a log file with logs such as
01/05/2017 10:23:41 : file.log.38: database error, MODE=SINGLE, LEVEL=critical, STATE: 01170255 (mode main
how can i use perl to extract the 8-digit number below from the string
01170255
Thanks (7 Replies)
How can I extract digits at the end of a string in UNIX shell scripting or perl?
cat file.txt
abc_d123_4567.txt
A246_B789.txt
B123cc099.txt
a123_B234-012.txt
a13.txt
What can I do here? Many thanks.
cat file.txt | sed "s/.txt$//" | ........
4567
789
099
012
13 (11 Replies)
Discussion started by: mingch
11 Replies
LEARN ABOUT DEBIAN
surfraw-update-path
SURFRAW-UPDATE-PATH(1) User Contributed Perl Documentation SURFRAW-UPDATE-PATH(1)NAME
surfraw-update-path - updates PATH in shell config files
SYNOPSIS
surfraw-update-path [-add] [-remove] [-check] [-sys] [-all] [-help] [-shell=SHELL]
DESCRIPTION
surfraw-update-path adds the surfraw elvi directory (/usr/lib/surfraw) to your PATH in your shell's config file.
Currently it supports bash, sh, csh, tcsh, ash, dash, ksh, pdksh, zsh, rc, and es
Don't forget to login again or source your login files for it to take effect.
OPTIONS -check
Checks to see if the surfraw config code is present. This is the default.
-add
Adds the surfraw config code.
-remove
Removes the surfraw config code
-sys
Updates the system-wide shell config instead of the user. Must be done as root.
-shell=SHELL
Selects the shell to configure. Defaults to the value of the $SHELL environment variable.
Currently supported shells are:
sh, ash, bash, dash, csh, tcsh, ksh, pdksh, zsh, rc, and es.
-all
Attempts to configure the startup files for all known shells
-help
Gives a usage message
RETURN VALUE -check returns 0 if the surfraw code is present in the file, 1 if it is not found, or 2 on error.
All other options return 0 on success, or 2 on error.
ENVIRONMENT
SHELL
Used to determine which shell to configure, if -shell is not given.
HOME
Used to find users config files.
ENV Used by posix-compliant shells to specify a startup rc file.
ZDOTDIR
Used to find user config files for zsh. If not set, defaults to HOME.
SEE ALSO surfraw(1), sh(1), ash(1), bash(1), dash(1), csh(1), tcsh(1), ksh(1), pdksh(1), zsh(1), rc(1), es(1)AUTHOR
Ian Beckwith <ianb@erislabs.net>
perl v5.12.4 2011-07-12 SURFRAW-UPDATE-PATH(1)