Just for clarity here (there is absolutely no critical intent) - when using sed and there are a lot of escaped slashes I use a different separator - to make things easier to read.
Code:
#!/bin/bash
cmd="$*"
cmd= cmd=$( echo "$cmd" | sed 's/dd /\/usr\/bin\/dd /'| sed 's/\-u/conv=ucase /' | sed 's/\-l/conv=lcase /' )
eval $cmd
I would enter that as follows.
Code:
#!/bin/bash
cmd="$*"
cmd= cmd=$( echo "$cmd" | sed 's;dd ;/usr/bin/dd ;'| sed 's;\-u;conv=ucase ;' | sed 's;\-l;conv=lcase ;' )
eval $cmd
You can use any character that you want here, as I said just improves readability IMHO.
Hey folks! I'm trying to work on a script that will add a user to the system. I have the complete script, but it's not working for me, and I'm not sure what to do.
line 53: syntax error near unexpected token `0'
********************************************************
#!/bin/bash
#
# ... (4 Replies)
I'm just not sure where to start looking into this. I want to be able to create switches for my script. Back in the day I'd make my scripts interactive...you know:
echo "what report do you want"
echo "A)boxes with errors"
echo "B)boxes with more than 5 errors"
echo "C)Service groups that have... (3 Replies)
Hi.
I use an alias, "homeperm" as shorthand for curl -o. Since most of what I download via cUrl is graphic image files -- jpeg files -- I'd like to be able to change this alias to a script, or use it to invoke a function, which will not only download the file but date-stamp it using Exiv2 in... (4 Replies)
I'm trying to write a bash script and call it "compile" such that running it allows me to compile multiple files with the options "-help," "-backup," and "-clean". I've got the code for the options written, i just can't figure out how to read the input string and then translate that into option... (5 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Creating bash script the dd command and its new options (-l -U)
-l options to lowercase contents of file
-U... (2 Replies)
I have the following code and I am calling it using
./raytrac.bash -u
and getting problems. For some reason opt_usage is still 0.
opt_usage=0
iarg=0
narg=$#
while (($iarg < $narg))
do
(( iarg = $iarg + 1 ))
arg=$argv
usrInputFlag=`echo $arg | awk '/=/ {print 1}; ! /=/... (22 Replies)
I'm working on a script to execute a number of items. One being, editing particular files to add certain lines. I'm attempting to utilize sed, but, having issues when running from a bash script. Assistance is greatly appreciated.
My example:
sed -i '14 i\
# add these lines
add these lines to... (5 Replies)
Hi Again,
I have a file that contains date and time for the past 2 hours. What i need is add missing date and time in a file.
INPUT
2016-01-13 01:33 10
2016-01-13 01:31 10
2016-01-13 01:30 10
2016-01-13 01:29 10
2016-01-13 01:28 10
2016-01-13 01:27 10
2016-01-13 01:26 10
2016-01-13... (14 Replies)
Hello UNIX & Linux Forums community! Long time Linux daily user hobbyist, new to shell scripting....
I'm working on a script that does all the "work" in one script, and makes calls to a second script to display info to the user via mostly expanding variables in heredocs.
I'm contemplating... (6 Replies)
Discussion started by: Cody Learner
6 Replies
LEARN ABOUT DEBIAN
shtool-path
SHTOOL-PATH.TMP(1) GNU Portable Shell Tool SHTOOL-PATH.TMP(1)NAME
shtool-path - GNU shtool command dealing with shell path variables
SYNOPSIS
shtool path [-s|--suppress] [-r|--reverse] [-d|--dirname] [-b|--basename] [-m|--magic] [-p|--path path] str [str ...]
DESCRIPTION
This command deals with shell $PATH variables. It can find a program through one or more filenames given by one or more str arguments. It
prints the absolute filesystem path to the program displayed on "stdout" plus an exit code of 0 if it was really found.
OPTIONS
The following command line options are available.
-s, --suppress
Supress output. Useful to only test whether a program exists with the help of the return code.
-r, --reverse
Transform a forward path to a subdirectory into a reverse path.
-d, --dirname
Output the directory name of str.
-b, --basename
Output the base name of str.
-m, --magic
Enable advanced magic search for ""perl"" and ""cpp"".
-p, --path path
Search in path. Default is to search in $PATH.
EXAMPLE
# shell script
awk=`shtool path -p "${PATH}:." gawk nawk awk`
perl=`shtool path -m perl`
cpp=`shtool path -m cpp`
revpath=`shtool path -r path/to/subdir`
HISTORY
The GNU shtool path command was originally written by Ralf S. Engelschall <rse@engelschall.com> in 1998 for Apache. It was later taken
over into GNU shtool.
SEE ALSO shtool(1), which(1).
18-Jul-2008 shtool 2.0.8 SHTOOL-PATH.TMP(1)
03-10-2012
