Ignore all lines except the --- dash line in a text file.
How do you write a script to ignore all lines except the --- dash lines and then remove --- dashes from the data in a text file?
Also how do you separate data in a text file with a tab (for example, column1 (software) and column2 (date) ) ?
Here is my scripts : I am getting errors in both:
Code:
#!/bin/bash
#code 1 removes all lines except lines begin with --- dashes and then write the results out to a file (foo2.txt)
while read -r line; do
[[ "$line" = *( )---* ]] && continue
echo "$line" > foo2.txt
done < foo
#Code 2 remove --- dash
ed -s foo2 <<-EOF
\$-1s/ *||---*||//
w
q
EOF
foo.txt: Code 1 removes lines except for line begin with --- dashes . The contents in foo.txt are as follows:
Code:
1 the SAS System 17:01 Tuesday, September 1, 2015
orginal validation
site number: zykbcds
expiration: 30019999
grace period: 45 days
warning period: 45 days
product expiration dates:
---B colb software 30Nov2015
---SG/software 30Oct2015
---GH/Software 30Nov2015
---KP/software 30Oct2015
---lP/software 30Oct2015
rv analytic enterprise bnm evironment software /software28JAN2015
foo2.txt: Code 2 removes all dashes in the data and then add tab between columns . The contents in foo2.txt are as follows:
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---------- Post updated at 06:16 PM ---------- Previous update was at 05:55 PM ----------
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temp.txt 2 Line
temp.txt 3 Line
temp.txt 4 Line
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temp.txt 6 Line
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