10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have a text file with a line of text that contains numbers and text formatted into groups. I need to extract the number that can be either 1,2 or 3 digits long. Then write it to a variable, but i need to remove any leading spaces in the number first.
I can get the numbers out but how to remove... (12 Replies)
Discussion started by: kcpoole
12 Replies
2. Shell Programming and Scripting
Hi,
i have a variable which conatins values like 00001,0003,00067,00459.
I want to use the values one by one and in the same form as they are like 00001,0003,00067,00459.
Also can anyone tell me how to increment those numbers by 1,keeping the format as same like 00002,0004,00068,00460.... (5 Replies)
Discussion started by: arijitsaha
5 Replies
3. Shell Programming and Scripting
Hi... can anyone please tell how do i strip off the leading filename from the wc -l command....
when i fire command
wc -l new1
... its giving output as
14 new1
i want the output as just '14'...
i need to use this value in the calculations in the later part of the script..... (2 Replies)
Discussion started by: swap21783
2 Replies
4. Shell Programming and Scripting
Ok so I know the title was probably confusing so here goes: I have a tarball (gzipped) that has a nested directory structure . For example:
my.tar.gz (contents)
---
------
---------
------------
---------------
... (2 Replies)
Discussion started by: DC Slick
2 Replies
5. Shell Programming and Scripting
awk -F"\t" -vOFS="\t" '{print $1"\t-\t-","",$6,$7"\t-"$8"\t-\t-\t"$15}' file.tsv > output.tsv
Using the above command how to remove the string www.abc.com from the $7 value. (7 Replies)
Discussion started by: sandy1028
7 Replies
6. Shell Programming and Scripting
I have a list of servers that I need my script to ping however this list also has the env they belong too such as SIT, PRD, warehouse and so on.
The break character for each section is :
A value in my list would look like this...
brutus.grhq.xxx.com:warehouse
Where brutus.grhq.gfs.com is... (13 Replies)
Discussion started by: LRoberts
13 Replies
7. UNIX for Dummies Questions & Answers
HI
In my script, i am reading the input from the user and want to find the length of the string.
The input may contain leading spaces. Right now, when leading spaces are there, they are not counted.
Kindly help me
My script is like below. I am using the ksh.
#!/usr/bin/ksh
echo... (2 Replies)
Discussion started by: dayamatrix
2 Replies
8. Shell Programming and Scripting
Hello, I am (trying) to write a script that will check to see how many users are logged on to my machine, and if that number is more than 60 I need to kill off all the oldest sessions that are over 60. So far I have been able to check how many users are on and now I am at the part where I have to... (3 Replies)
Discussion started by: raidzero
3 Replies
9. Shell Programming and Scripting
I have a file that looks like this:
/home/fred/opt/bin
/opt/usr/bin
/usr/sbin/var/opt
I need a way to chop of everything after the last occurance of the / sign including the /. So the file above will now look like this below.
/home/fred/opt
/opt/usr
/usr/sbin/var
I tried using... (6 Replies)
Discussion started by: x96riley3
6 Replies
10. Shell Programming and Scripting
I am trying to strip all leading and trailing spaces of a shell variable using either awk or sed or any other utility, however unscuccessful and need your help.
echo $SH_VAR | command_line Syntax.
The SH_VAR contains embedded spaces which needs to be preserved. I need only for the leading and... (6 Replies)
Discussion started by: jerardfjay
6 Replies
SHTOOL-SUBST.TMP(1) GNU Portable Shell Tool SHTOOL-SUBST.TMP(1)
NAME
shtool-subst - GNU shtool sed(1) substitution operations
SYNOPSIS
shtool subst [-v|--verbose] [-t|--trace] [-n|--nop] [-w|--warning] [-q|--quiet] [-s|--stealth] [-i|--interactive] [-b|--backup ext]
[-e|--exec cmd] [-f|--file cmd-file] [file] [file ...]
DESCRIPTION
This command applies one or more sed(1) substitution operations to stdin or any number of files.
OPTIONS
The following command line options are available.
-v, --verbose
Display some processing information.
-t, --trace
Enable the output of the essential shell commands which are executed.
-n, --nop
No operation mode. Actual execution of the essential shell commands which would be executed is suppressed.
-w, --warning
Show warning on substitution operation resulting in no content change on every file. The default is to show a warning on substitution
operations resulted in no content change on all files.
-q, --quiet
Suppress warning on substitution operation resulting in no content change.
-s, --stealth
Stealth operation. Preserve timestamp on file.
-i, --interactive
Enter interactive mode where the user has to approve each operation.
-b, --backup ext
Preserve backup of original file using file name extension ext. Default is to overwrite the original file.
-e, --exec cmd
Specify sed(1) command directly.
-f, --file cmd-file
Read sed(1) command from file.
EXAMPLE
# shell script
shtool subst -i -e 's;(c) ([0-9]*)-2000;(c) 1-2001;' *.[ch]
# RPM spec-file
%install
shtool subst -v -n
-e 's;^(prefix=).*;1 $RPM_BUILD_ROOT%{_prefix};g'
-e 's;^(sysconfdir=).*;1 $RPM_BUILD_ROOT%{_prefix}/etc;g'
`find . -name Makefile -print`
make install
HISTORY
The GNU shtool subst command was originally written by Ralf S. Engelschall <rse@engelschall.com> in 2001 for GNU shtool. It was prompted
by the need to have a uniform and convenient patching frontend to sed(1) operations in the OpenPKG package specifications.
SEE ALSO
shtool(1), sed(1).
18-Jul-2008 shtool 2.0.8 SHTOOL-SUBST.TMP(1)