All Questions
6 questions
3votes
1answer
416views
Why is "${1-"$var"}" (option 6 down below) not mentioned in POSIX?
The only reference I could find in the spec is this: It would be desirable to include the statement "The characters from an enclosed "${" to the matching '}' shall not be affected by ...
- 2,093
1vote
1answer
325views
UNIX KSH - Using double quotes or no quotes when assigning strings with wildcard to a variable?
I am new to UNIX and currently working on a shell script where I will be receiving files with names such as abc_123_date.zip so the file names will be abc_123_12312005. Instead of hardcoding abc_123_*....
- 11
1vote
1answer
1kviews
How to escape a range of wildcards in unix shell script?
I need to execute the following Oracle SQL in unix crontab. The query is as follows: select count(*) from tbaadm.htd where cust_id is not null and pstd_flg = 'Y' and del_flg = 'N' and tran_date = (...
- 113
1vote
1answer
70views
Problematic quotations
#!/bin/ksh typeset FILE_SIZE1=$(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... ${...
2votes
2answers
142views
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" ...
- 383
22votes
2answers
1kviews
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 strikes ...
- 20.4k
