1
vote
1answer
30 views

Problematic quotations

#!/bin/ksh typeset FILE_SIZE1=$(stat -f '%z' test.txt); typeset -r BK_STATARGS="-f '%z'" typeset FILE_SIZE2=$(stat ${BK_STATARGS} test.txt); echo without arg var ${FILE_SIZE1} echo with arg var... ...
1
vote
3answers
88 views

Quoting in command substitution

The command pdftk FileOne.pdf "File two.pdf" output Combined.pdf works as expected, merging PDF's One and Two. However, if I put the filenames in a file FileOne.pdf "File Two.pdf" and ...
4
votes
3answers
246 views

using awk to split a line on single spaces not multiples

I'm trying to split a line that I have no control over the format of. If parameter 7 and 8 are missing which is possible they will be replaced by a space so I would end up with, field1 field2 field3 ...
2
votes
2answers
106 views

Awk not rendering any result

My goal is to get the file created in the current month in a directory. It seems that the command is correct but not rendering any result: Date=`date '+%b'` echo $Date Oct ls -l | awk -v d="$Date" ...
4
votes
2answers
1k views

How do I escape a sub-directory name with an ampersand in it?

Running a kornshell and trying to traverse a directory tree. Want to cd to a sub-directory named as follows: -3ab_&_-3dc.img My question is HOW do I need to escape the ampersand in this name? ...
3
votes
2answers
273 views

issues with GNU tail -f and combination of commands

$ tail -f /logs/filename.log | awk '!(/list)' I am able to run this command in GNU Linux flavour But when I written in a script it is not working. test.ksh: variable="/logs/filename.log | awk ...
20
votes
2answers
720 views

Why escape trivial characters in shell script?

I just opened a legacy shell script (written in old ksh88 on Solaris) and found the following repeated all throughout the code: [ -f $myfile ] && \rm -f $myfile The escaping backslash ...
26
votes
3answers
4k views

using single or double bracket - bash

I'm confused with using single or double bracket. look at code: dir="/home/mazimi/VirtualBox VMs" if [[ -d ${dir} ]]; then echo "yep" fi It works perfectly although the string contains space. ...