This is because commands within a pipeline are run in subshells so the read statement is setting the variables is a subshell which has not impact on the main shell.
You can achieve what you want using process substitution like this:
Edit:
Also in bash 4.* and later you can use a shell option to run the last pipeline command in the current shell.
Note this only work for shells without job control, so in an interactive shell (as opposed to a script) you will also need turn off job control (set +m).
Quote:
lastpipe
If set, and job control is not active, the shell runs the last command of a pipeline
not executed in the background in the current shell environment.
Last edited by Chubler_XL; 01-30-2020 at 10:25 PM..
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Hi :)
The next script campares two files File1-Line1 vs File2-Line1, File1-Line1 vs File2-Line2... only if line contains "AS-", if LineX is not in File2 writes in aux, but "valor" is allways=1 never changes! :confused: What is wrong?
valor changes to 0 before break, after brake is again 1
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Hi
I am trying to write a function that needs to be able to assign the last run shell command to a variable. The actual command string itself not the exit code of the command.
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curyymm PRVYYMM CDDMmmYY bddMmmyy eddMmmyy
--------- ------- ------------ ---------- -----------
0906 0905 09Jun09 01Jun09 30Jun09
----------- --------- ------------ ------------ -----------
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Hello,
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while IFS=: read -r line
do
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echo 'printing line variable ' $line... (1 Reply)