CODEWITHSUNDEEP
bash
ans
ans

Reputation: 1

concatenate a string into a file through a command that is a single valued argument to a script

I need to concatenate a string into a file through a command that is a single valued argument to a script:

defining sample text: TEXT="sample text"

defining characteristic script : transfer.sh $1

desired usage (to be corrected): ./transfer.sh "echo $TEXT >> test.log"

desired output in test.log ... (previous contents) sample text

Upvotes: 0

Views: 72

Answers (1)

Yamaneko
Yamaneko

Reputation: 3563

You can use eval command in your transfer.sh file: 

eval $1

It will generate test.log with "sample text" in the last line. Be aware that anything you pass to transfer.sh script will be executed. So, if your user passes "rm -r /home/alan/papers", everything in your papers folder will be deleted.

Upvotes: 1

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